Journal of Liaoning Petrochemical University
Annual Contents
Journal of Liaoning Petrochemical University 2013 Vol.33
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Mathematic Model Related with Condensate Oil Blending
Abstract310)      PDF (1288KB)(353)      
Gasoline are blended with condensate oil as base oil, the gasoline obtained under the optimum blending conditions can meet the requirements of GB III standard gasoline. The relations between the quality factor of blending oil and the proportion of additives were simulated by Matlab through the experimental data. The results indicate that the octane number and vapor pressure have good multilinear correlationship with the proportion of additives. 
2013, 33 (1): 1-4.
Corrosion Behavior of Q235 and Q345 Steel in Simulated Seawater
SHI Yanhua, LIANG Ping, WANG Yuan, WU Zhanwen
Abstract766)      PDF (4243KB)(490)      
The effect of soaking temperature and stirring rate on the corrosion behavior of Q235 and Q345 steel in simulated seawater environment (3.5%NaCl) was investigated by using soaking experiment. The surface morphology and chemical composition of corrosion products were analyzed by means of SEM and EDS. The results show that the corrosion rate of Q235 and Q345 steel has little difference and increase with increasing temperature in static seawater environment, reaching approximately 0.28 mm/a at 40 ℃. The stirring rate has a significant effect on the corrosion behavior of Q235 and Q345 steel and the corrosion rate accelerates with increasing stirring rate. When stirring rate is 300 r/min, the corrosion rate reaches 1 mm/a that is about 3.5 times as big as temperature effect. Uniform corrosion was observed on Q235 steel in simulated seawater. But the local corrosion morphology is found on Q345 steel and the main corrosion product is iron oxides. The application of Q345 material should be cautious compared with Q235 material in the same seawater environment.
2013, 33 (1): 5-8.
Effect of Methanol Volume Fractions in Gasoline on  AntiSwelling Property of Rubber Materials
XIONG E, YAN Feng, ZHANG Wenpeng
Abstract377)      PDF (2341KB)(269)      
Because of inherent characters of rubber materials, there exists some differences on antiswelling property of rubber materials in gasoline with different methanol volume fraction. Immersion tests in gasoline 93# or gasoline with different methanol proportions are conducted to show the antiswelling property of 3 rubber materials commonly used in motor vehicles. The results show that silicone rubber has better antiswelling property in gasoline with high methanol proportion; on the contrary, fluorine rubber has good resistance to swelling in low proportionmethanol gasoline; Nitrile Rubber has good antiswelling property in all gasoline with different proportion of methanol. 
2013, 33 (1): 9-11.
Catalytic Oxidation of Styrene over Vanadium Modified SBA15
YIN Wenxiang, SHEN Jian
Abstract488)      PDF (2093KB)(258)      
Vanadium complexes modified mesoporous molecular catalysts were prepared by impregnation and hydrothermal method respectively, and then characterized by XRD,N2 adsorptiondesorption(BET) and FTIR techniques. The results show that both the catalyst samples with impregnation and hydrothermal methods kept mesoporous structure well and vanadium oxide were dispersed uniformly in mesoporous materials. The catalytic performance was evaluated by the oxidation styrene to benzaldehyde, and found that the conversion can reach 76.3%, and selectively to benzaldehyde is 86.7% under optimum conditions.
2013, 33 (1): 12-15.
Surface Modification of Calcium Carbonate Whiskers
ZHANG Yongmei, ZHOU Li, CUI Yanyan
Abstract352)      PDF (1867KB)(286)      
The silane coupling agent KH570 was used for modifying the surface of calcium carbonate whisker. The optimal conditions of experiment were determined by activation degree and sedimentation volume. The results indicate that the optimum modification conditions are as follows: initial slurry concentration 10%, reaction temperature 80 ℃, coupling agent 2.5% and modification time 1.5 h. 
2013, 33 (1): 16-18.
The Effect of Emulsification Conditions on Particle Size of Oxidized Wax Emulsion
CHEN Peng, JI Lingxian, WANG De,CONG Yufeng, HUANG Wei
Abstract402)      PDF (1731KB)(210)      
The influence of emulsification parameters including HLB value,dosage of emulsifiers, reaction temperature, stirring speed and emulsification time on particle size of oxidized wax emulsion was studied by laser particle analyzer. The results show that optimum emulsification conditions are as follows: dosage of complex emulsifiers 3.0%, the HLB value 12, reaction temperature 85 ℃,stirring speed 800 r/min, emulsification time 35 min. Under above conditions, the minimum particle size of the oxidized wax can reach 66.2 nm.
2013, 33 (1): 19-21.
Adsorption Removal of Basic Nitrogen in the Shale Diesel by USY Molecular Sieve
LI Shaokai, LI Linlu, SHEN Jian, RUAN Benxi
Abstract456)      PDF (1764KB)(165)      
Adsorption removal of basic nitrogen compounds in the shale diesel with USY molecular sieves was investigated. The effect of adsorption time, temperature and adsorbent/oil weight ratio on the nitrogen removal rate was studied, and found that highest nitrogen removal rate (30.73%) are obtained under the following conditions: the adsorbent to oil weight ratio of 0.03, the adsorption temperature of 120 ℃, the adsorption time of 30 min. Simultaneously, the static equilibrium adsorption capacity can reach 27.2 mg/g. After regenerated for several cycles, the removal rate of basic nitrogen compounds is still more than 25%. Adsorption kinetics suggested that adsorption denitrogenation follows the second-order equation.
2013, 33 (1): 22-24.
Preparation and Growth Mechanism of Metal  Organic Frameworks Co1Cu2(BHTC)2
LI Yongchao, LIU Zongqi, XIN Chunling, TIAN Xiaoguang, HOU Junqi
Abstract422)      PDF (3477KB)(230)      
Metal organic frameworks Co1Cu2(BHTC)2 was prepared from biphenyl3,4',5tricarboxylate as organic ligand with hydrothermal method, and then characterized by XRD, SEM, TEM, TGA and FT-IR technology. The effect of temperature and crystallization time on the crystal growth and the growth mechanism of Co1Cu2(BHTC)2 was studied by SEM method. This work provides a new way of the crystal growth of nanoporous material. The results indicate that the crystal morphology changes markedly with the increase of crystallized time. The small hexagonal secondary building units (SBUs) were assembled by sharing the same prism of the tiny crystals, and then aggregated into a bulk hexagonal plate-like crystal.
2013, 33 (1): 25-29.
Synthesize of Bulk NiAl2O3 Catalysts in the Way of SuperSolubilization  Nanometer SelfAssembly and Its characterization
YAN Yuling, SONG Jinyu, WANG Dingcong
Abstract329)      PDF (1678KB)(346)      
Bulk NiAl2O3 catalysts was synthesized in the way of supersolubilization nanometer selfassembly. The bulk NiAl2O3 catalyst was characterized by Xray diffraction (XRD) and the mercury porosimeter. The influence of affecting factors on physical properties of catalysts was investigated, such as the amount of urea and surfactant, and the amount of nikel oxide. The results show that bulk NiAl2O3 catalysts has a better bore structure, which is made from based amount plus 2 of surfactants, based amount plus 5 of urea and plus 3 of NiO. Specific area of the bulk NiAl2O3 catalyst is between 186 m2/g to 324 m2/g, bore diameter is 3~12 nm, and the diameter of bore is even and distribute concentration, witch is belong to medium and big bore scope, the bore permits is 0.45~0.89 mL/g. This bulk catalyst is a more ideal bulk catalyst which can satisfy the request of hydrogenation. This synthesize method has more merits,such as decreasing the dosage of surfactant and aqueous, operation craft simple, reaction can be controlled easily.Nanometer bulk catalyst has a good application value in industrialize production because of its better property than the residue oil hydrogenation catalyst.
2013, 33 (1): 30-34.
Numerical Calculation of Contaminated Product in ZShape Pipeline
XU Jinmeng, WU Ming, HU Zhiyong, CHEN Zhaoxiong, ZHANG Ning
Abstract313)      PDF (3120KB)(191)      
Aiming at the mixed oil quantity of pipelining products, mixed oil control equations of batch transportation was established based on multiphase flow model and finite volume method. The transportation mediums were 0# diesel and 90# gasoline. The numerical calculation was based on two cases, the product flows through a Ztube from top to bottom and from bottom to top. The research shows that when it flowed through the horizontal section of a Ztube, the distribution of mixed oil is not symmetric. In a vertical section, there are lager amount of mixed oil when diesel is above gasoline and the distribution of section concentration was more uniform when gasoline is in front of diesel.
2013, 33 (1): 35-38.
Numerical Simulation of the Dangerous Area of  Sulfur Natural Gas Pipeline Leakage
GUAN Xueyuan LIU Dejun,FAN Xin,BI Ying, WANG Qiusha, ZHAO Zhiqiang
Abstract311)      PDF (2196KB)(210)      
Aiming at the actual situation of the buried sulfur natural gas pipeline leakage problem, with the finite volume method, the numerical simulation for volume fraction of hydrogen sulfide and methane of the buried sulfur natural gas pipeline continuous leakage were preceded. The upper soil was considered as porous medium to gas diffusion effects. Comparing and analyzing the dangerous area of methane and hydrogen sulfide occurring at the moment, the results show that the virulent area of hydrogen sulfide leaked is much greater than the dangerous area of methane, covering completely. Between the common area of hydrogen sulfide and methane, fire prevention measures are took as well as poisonous protection measures in the area of hydrogen sulfide influenced alone.
2013, 33 (1): 39-42.
Power Plant Boiler High Temperature Slag Waste Heat  Recovery and Utilization Technologies
YU Huipeng,LIU Baoyu,WAN Kuifang,LIANG Yuan, LYU Ronghang,FAN Wenlin
Abstract603)      PDF (3154KB)(401)      
The power plant boiler high temperature slag is typically the use of recycled water for cooling the slag, and recycled water slag wasted heat into the cooling tower and the atmosphere. Not only the heat of the slag has not been fully utilized, but also the boiler thermal efficiency and recycled water evaporation were caused by the waste of water resources to a certain extent, and by thermal pollution on the environment. It is very important that Boiler high temperature slag wasted heat recovery for energy conservation, and improved the overall boiler thermal efficiency. The design of the works of three waste heat recovery scheme, the effect of energy saving and economic benefits of each program optimization calculation resulted in cold slag recycling power plant boiler and high temperature slag wasting heat for heating boiler feed water, the cold residue machine released hot water into the low temperature heater between 7# and 8#, there are very significant results and thus reduce the turbine extraction, reduce the turbine power heat rate, and improve the efficiency of the entire power plant power generation. Its findings can be generalized to other power plant boilers and lowtemperature waste heat recycling.
2013, 33 (1): 43-47.
Abstract504)      PDF (5767KB)(570)      
2013, 33 (1): 48-52.
Fluctuation of the Soil Temperature Field of Batching Transportation of Cold and Hot Crude Oils
YANG Yunpeng,LIU Baoyu, ZHANG Yuting, ZHANG Ning, HAO Jing
Abstract361)      PDF (3120KB)(207)      
n order to more accurately determine the crude oil batching transportation temperature fluctuation, the soil temperature field around pipeline insulation surface drift was studied. For variation characteristics of soil temperature field around underground pipeline in the process of batching transportation of cold and hot crude oil, the non steady heat transfer model was established, and soil temperature field in different period of batching cycles and moments was numerically simulated and analyzed by using CFD software in the process of crude oil batching transportation. The results show that the drift on the thermal insulation surface of soil temperature field has certain regularity, and adiabatic surface with crude oil batching transportation time shows periodic drift, drift period and period of batching cycles of cold and hot oil transportation were the same; drift cycle of thermal insulation surface of soil temperature field and the scope are related to cold and hot cycle on the batch transportation of oil.
2013, 33 (1): 53-56.
Influence of Steam Injection Period to the Heat  Affected Radius during the Steam Soak
JIA Fengrui,SHAO Lingdong,ZHANG Zizhou,WANG Chunhua,HUANG Wen,WU Ming
Abstract443)      PDF (2082KB)(205)      
The wasting of the superheated steam or heating the oil reservoir not sufficiently might be caused by the uncertainty of steam injection period during the steam soak, therefore, and a two-dimensional, unsteady state mineshaft-stratum-oil reservoir mathematical model was established, and the temperature fields of the stratum and the oil reservoir were analyzed. Furthermore, the influences of steam injection period to the heat affected radius during the steam soak were discussed. The results show that the heat affected radius of the oil reservoir increases with steam injection period duration and reaches the maximum when the steaming for 5 d, then nearly no longer changed after that. The heat in the oil reservoir began to transfer to the stratum when the steaming for 3 d, and the temperature fields of the stratum and the oil reservoir are nearly the same for 6 d. The steam injection period should be controlled in 4~5 d during the steam soak.
2013, 33 (1): 57-59.
High Efficiency Recycling and Utilization for Residual Heat Resources in Heavy Reservoir Thermal Recovery Process
YAO Yao, WU Ming1,JIA Fengrui1,WANG Lei, GAO Yanbo, FENG Jinye,LIU Li3
Abstract414)      PDF (2630KB)(282)      
Considering the large resource of low temperature waste heat in heavy reservoir thermal recovery process, the technology of recover waste heat in oil field was used for heating pipeline in heavy oil transportation. The model of dynamic simulation system of the technology was established by MatlabSimulink, and the heating efficiency of the technology system was obtained. The results of the study show that the heating temperature of system can achieve 75 ℃, satisfied with the temperature requirements of heating water in heavy oil transportation, and the heating coefficient of system is 3.5. Based on this, through the analysis of the energy that the established system model can save standard coal 17 t/a better than boiler heating model, to reduce the discharge of pollutants in the air 0.714 t/a, the system has a large economic and environmental benefits.
2013, 33 (1): 60-63.
Calculating the Economic Thickness of Cold layer of  Refrigeration Pipe by Iterative Method
DU Yipeng WANG Weimin,WANG Liang,ZHANG Chunjing,LIU Jie,WANG Xiaonan1
Abstract340)      PDF (1192KB)(223)      
The iterative formula of the cold layer economic thickness was deducted , and the formula can quickly and easily calculate the economic thickness of the layer of cold. The analyses and designs were used by examples, and in the calculation process, the economic thickness of the layer of cold drawn after comparison, so as to achieve the purpose of energy conservation. This method is not only simple and easy to understand, but also greatly improve design efficiency and quality.
2013, 33 (1): 64-67.
Electronic Commerce Personalized Recommendation System Applied
ZHANG Yongpan, FENG Xiwei,GUAN Cang,WANG Jianhua, BI Fuwei
Abstract469)      PDF (2908KB)(397)      
Based on the traditional electronic commerce recommendation system, these technology means such as distributed computing, publish/subscribe based on the semantic,and ontology were introduced. The personalized electronic commerce recommendation model architecture was designed. The film areas ontology was constructed, which was implemented by Protégé 3.3.1 ontology model tool. The architecture core algorithms were described in detail, which are the clustering algorithm of users characteristics and the match algorithm of publish/subscribe based on the semantic. The experimental results show that the personalized recommendation system based on publish/subscribe has a good recommendation accuracy.
2013, 33 (1): 69-73.
Strength Analysis of Milling Head of DividedMilling Machine for Pipe Cutting
WU Ming,DENG Zilong,GE Hanlin,XU Long
Abstract404)      PDF (2419KB)(226)      
Milling head is the important actuator of divided milling machine. The strength value of milling machine has big affection in reliability when it working. Thus, the static and modal analysis used finite element software ANSYS has important meanings. The geometric model of milling head was builded by 3D software Pro/E and tested the interference of the model. The finite element was constructed through the connector of Pro/E and ANSYS and made modal and static analysis through ANSYS. The results of dynamic simulation show that there is no interference produced. The results of modal analysis show that there is no resonance phenomenon produced. At the same time, the results of static analysis show that the stiffness and strength is satisfied. Theoretically, the results of software provide references for the structure and optimizing design of the machine.
2013, 33 (1): 74-77.
Finite Element Analysis of Mine Rig Feed Module of ZDY2000L Type Based on ANSYS
HUANG Lei, ZHANG Juwei, LI Yinkui
Abstract411)      PDF (3797KB)(238)      
The Drilling machine is a modern coal mining technology and equipment of minecoaling.When Drilling machine work properly, the power feed part is under the complicated forces, and the working environment is harsh. In order to ensure product quality and reliability, using finite element analysis software ANSYS dedicated feed module the stress and vibration modes of calculation. By calculating the results obtained ZDY2000L rig feed module in a state of extreme working stress distribution and rail stiffness and deformation values and found that the design of the product in the case of reducing the amount of steel, while ensuring the strength of the structure of local requirements and overall stiffness deformation requirements. Structure necessary vibration modal analysis of the natural frequencies has been submitted so as to provide a theoretical basis for improving the mechanical properties of the system.
2013, 33 (1): 78-81.
alculation of Stress Intensity Factors for Circumferential Cracks in the Quick Opening Closure
GONG Xue, XIE Yujun
Abstract471)      PDF (3501KB)(251)      
In the finite element ANSYS software established simplified structure model, simplified the structure into axisymmetric model, alternated the structure size. Using order flow to compute stress intensity factor around the singularity, then analysed the relation between the stress intensity factor and the structure size and compared to the calculation by Jintegral. The results show that the application of J integral calculation KⅠ has feasibility.
2013, 33 (1): 82-85.
Intensity Design and Distribution of the QuickOpening  Mechanism on the HighPressure Sintering Furnace
LIU Fumin, LI Shuyun, XIE Yujun, CAI Yongmei
Abstract384)      PDF (2105KB)(197)      
The grid of the quickopening clamp structure on the pressure sintering furnace was meshed by utilizing HyperMesh software, and the nonlinear contact analysis for the quickopening structure was achieved by ANSYS contact element, then the third strength equivalent stress and deformation of the quickopening structure under the designed pressure were obtained. The analyses of the furnace lid, body and clamp were accomplished. The stress intensity on the dangerous crosssection was evaluated according to JB4732—1995 [WTBX]Steel pressure vessels——analyze design standard[WTBZ]. The analysis results indicate that the intensity requirement is satisfied. 
2013, 33 (1): 86-89.
valuation of Financial Performance Evaluation of Listed Corporations in Liaoning Province Based on Factor Analysis
YU Zhaohe, JIANG Liwen, WEI Wei
Abstract352)      PDF (996KB)(218)      
A financial performance evaluation index system was constructed on listed companies in Liaoning Province by SPSS17.0 software and factor analysis method, and have a comprehensive evaluation and ranking for these listed companies. Understanding the financial performance of the listed companies in Liaoning province, and drawing the conclusion of each listed companies’ comprehensive rankings by analyzing the financial index can provide strong not only support for managers and investors to make decisions, but also improve the comprehensive competitiveness of the company. It fosters Liaoning Province’s economy sustained and healthy development, and play an important role in our country's economic development.
2013, 33 (1): 90-93.
Several Upper Triangular Matrix Rings of Clean Rings
WEN Lishu
Abstract334)      PDF (1024KB)(179)      
Several upper triangular matrix rings of clean rings were studied. By the definition of a clean ring (with 1) is extended to any ring (not necessarily with 1),some results were proved: Let R be a clean ring, and let G be a group of order 2, then group ring RG is also a clean ring under some conditions. Several upper triangular matrix rings are strongly clean rings.Then several results of clean rings were extended; some upper triangular matrix rings are a strongly fclean rings.
2013, 33 (1): 94-96.
Catalytic Synthesis of pMethoxy Acetophenone with Modification Catalyst HMS by Phosphotungstic Acid
ZHOU Xiao, ZHANG Yazhou,WNAG Wei, LIU Xiangdong, CHEN Ping
Abstract414)      PDF (1577KB)(200)      
The modification solid catalyst HMS by phosphotungstic acid was prepared by insitu synthesis from DDA, TEOS, and phosphotungstic acid, and applied in pMethoxy acetophenone production with the FriedelCrafts acylation reaction of phenyl methyl ether and Acetic anhydride.The factors including reaction temperature, reaction time, catalyst amount, reactants molar ratio phenyl methyl ether to Acetic anhydride on the FriedelCrafts acylation reaction were investigated. The experimental effects show that solid acid catalyst HMS has high catalytic activity.The acylation reaction conversion can reach 83.1% and the selectivity of pMethoxy acetophenone production is 97.3% under the following optimal conditions: reaction temperature of 100 ℃, reaction time of 4 h, amount catalyst of 0.15 g, molar ratio of n( anisole)∶n(acetic anhydride) =1∶1.5.
2013, 33 (2): 1-5.
reparation and Characterization of Perovskite Oxide Ba0.6Sr0.4Co0.9Nb0.1O3δ as a Novel Cathode Material for ITSOFCs
ZHANG Leilei, LI Zhou, CHEN Mingming, HE Tianmin
Abstract508)      PDF (2551KB)(207)      
Perovskitetype oxide Ba0.6Sr0.4Co0.9Nb0.1O3δ (BSCN) was synthesized by the solid state reaction and investigated as a cathode for intermediatetemperature solidoxide fuel cells (ITSOFCs). XRD pattern indicated that BSCN crystallized in a singlephase perovskite with a cubic perovskite structure (Pm3m) and no evident reaction happened after the mixture of BSCN cathode and GDC electrolyte was sintered at 1 000 ℃ for 10 h. During the operating temperature of SOFCs (600~800 ℃), the electrical conductivity of BSCN reaches 21~27 S/cm. The thermal expansion coefficient value of 17.0 × 10-6/K has been measured for BSCN sample, which is much lower than that of SrCo0.9Nb0.1O3δ(SCN). This result indicated that Ba doping in SCN has a better thermal match to GDC electrolyte. Symmetrical cell with the configuration of BSCN/GDC/BSCN was used for the impedance measurements. The polarization resistance of BSCN cathode on GDC electrolyte is 0.026 Ω·cm2 at 750 ℃. With BSCN cathode, NiOCe0.8Sm0.2O1.9 anode and 300 μm thick GDC electrolyte, the maximum power density of single cell achieved 782 mW/cm2 at 800 ℃. All these results indicate that the BSCN oxide is a promising cathode candidate material for ITSOFCs.
2013, 33 (2): 6-10.
MicroElectrolysis Process Furan Ring Class Perfume Wastewater
LIU Xin, XU Yan, WU Yue, BAI Changling
Abstract327)      PDF (1925KB)(208)      
In the experiment the wastewater composition complex, contains a large amount of furan ring kind substances is a mixture of a variety of wastewater. Wastewater pH value in 1.6, the COD value in the 2.0×105 mg/L fluctuations, and salinity can up to 13%. According to the situation of water quality, using microelectrolytic method to the wastewater pretreatment, and grope for the optimum process conditions.The experimental results show that wastewater pH value is 3, carbon iron mass ratio is 1∶2, the reaction time is 3 h, the iron carbon add content is 1%, micro electrolytic process for the furan ring kind of wastewater treatment effect is good, COD removal rate can reach 57%, the total color removal rate can reach 80%.
2013, 33 (2): 11-15.
Preparation and Properties Analysis of New  Lithium/Calcium Complex Grease
ZHANG Lianhui,WANG Xiao
Abstract388)      PDF (1755KB)(253)      
New lithium/calcium complex grease was prepared from oil suspension of lithium hydrate instead of lithium hydroxide monohydrate. The preparation process of the new lithium/calcium complex grease was optimized, and found that the process with oil suspension of lithium hydrate as lithium source shows advantages of short saponification time, less thickener consumption, energy conservative and environmental friendly. As compared with the grease from lithium hydroxide monohydrate, this product has better oxidation stability, more smooth appearance and excellent properties.
2013, 33 (2): 16-19.
Laboratory Study on a New Accelerator WSA1 for Oil Well Cement
CAO Jie, ZHANG Jinsheng, LI Lihua, JIANG Weiwei,LIU Xiangdong
Abstract420)      PDF (1943KB)(212)      
As the cement slurry hydration speed is slow, the curing time is long and the increase of cement early compressive strength is slow in the low temperature cementing of conductor and surface casing, it is easy to result in oil, gas and water invasion which impairs cementing quality and operation safety. In view of the fact that the accelerator is lack in cementing of low temperature shallow formation currently at home, some accelerators have poor effectiveness and significant negative impact on slurry rheology etc, a new compound accelerator WSA1 was selected by laboratory study. The performance of slurry that mixed WSA1 was systematically evaluated. The result shows that the accelerator WSA1 can enhance the hydration of oil well cement, shorten the thickening time of cement slurry and significantly improve the early compressive strength of cementstones, which all accord with the requirement of the accelerator evaluation criterion. When WSA1 addition amount is 3%, the thickening time of cement slurry can be shortened more than 50%, the 6 h strength of cementstones enhanced from 3.2 MPa to 11.3 MPa and the 24 h strength of cementstones enhanced from 24.3 MPa to 46.1 MPa. Accelerator WSA1 is a kind of highperformance compound accelerator, which can be used in low temperature shallow formation and has no effect on the initial consistency and rheological parameter of cement slurry. 
2013, 33 (2): 20-23.
Influence of the Additives on Vulcanization of the  Brominated IsobutyleIsoprene Rubber
GAN Lu, LI Shuxin, GUO Wenli, XIAO Qi
Abstract369)      PDF (1020KB)(180)      
The effect of some additives such as antioxidant 1330, expoxidized soybean oil and calcium stearate on the vulcanization property of brominated butyl rubber was studied. The results indicate that antioxidant 1330 plays a leading role among the three kinds of additives, and reduces the rubber curing rate and improves the operation safety of compound.
2013, 33 (2): 24-26.
New Mixed Solvent of Waste Lubricant Regeneration Research Process
ZHAO Lin, YAN Feng, GUO Daguang, LIN Yueming, FENG Quan
Abstract424)      PDF (1049KB)(186)      
In the new mixed solvent of waste lubricant regeneration research process, applied the orthogonal method, investigated the refined effect of the operating temperature, refining time, the ratio of oil to solvent, the amount of the second solvent added to (DMF), the amount of the auxiliary solvent (polyether2070) added to five factors in four different levels. The range analysis shows that the added amount of the DMF and polyether2070 are the key factors of influencing the yield, as the change of the amount of polyether 2070 added to has little effect on the viscosity index, while the volumic ratio of solvent to oil and the amount of DMF added to on the viscosity index of the big influence.Mean analysis shows that the best refining conditions of the solvent is for the temperature being 80 ℃, the refine time being 30 min, the volumic ratio of solvent to oil being 1.5∶1, the amount of DMF added to being 15%, polyether2070 added to being 0.2%. In the optimal experimental conditions, the total yield of renewable lubricant reaches 91.7%, its viscosity index reaches 108.8.
2013, 33 (2): 27-31.
Power Ultrasound on the Effect of Demetallization
SONG Guanlong,LIU Chuang,ZHAO Dezhi
Abstract364)      PDF (3379KB)(219)      
A number of preliminary studies have been done to demetallize the Liaohe wax with the ultrasound-assisting method, and the ultrasonic parameters on the effect of demetallization have been studied. The results showed that the impact of demetallization with the ultrasound were better than that without the ultrasound, which can be achieved high rate of demetallization within a short period of time. The effect of demetallization is the best when the ultrasonic frequency is 28 kHz, the manner of ultrasonic effectiveness is consecutive and the ultrasonic intensity is 10 W/cm2, then the removal rate of Zn is 90%, and the removal rates of Ca and Ni are above 80%.
2013, 33 (2): 32-35.
Application of the Direct Discontinuous Galerkin Finite Element Method for the Calculation of Soil Temperature Field of Oil Pipeline
ZHANG Rongpei,WANG Rongrong
Abstract403)      PDF (4253KB)(225)      
The direct discontinuous Galerkin (DG) method was applied to calculate the soil instable temperature field of underground heated pipeline. This method applied partial integration from each computational cell for the heat transfer equation and obtained weak formulation.The direct DG was obtained by building appropriate numerical flux. The ordinary differential equations were gained by solving spatial discretization by means of the explicit Euler method. Through the calculation of the radial temperature field of heated pipeline ,its results coincide with other references'. Thus means that the direct discontinuous Galerkin method is an efficient and accurate numerical method for the calculation of instable temperature field.
2013, 33 (2): 36-38.
Reliability Analysis of Oil and Gas Pipeline Based on RF Method
SONG Shixiang,WU Ming,LIU Ke, ZHANG Guojun,MA Yue,FAN Kaifeng
Abstract431)      PDF (2904KB)(197)      
Factors that affect pipeline safety and reliability are numerous and randomness, so directly solving the limit state equation is difficult. The solving process of using RF method is simple and high precision. Based on reliability theory and B31G-1991 standard, comprehensively considering the randomness of the corrosion defect length, radial depth of defect, the corrosion rate, wall thickness, pipe yield strength and pressure pipelines, using RF method established a mathematical model for the reliability analysis of corrosion piping. The computer program for this method was developed. The results show that reliability index of the pipe decreased with the increase of defect length, defect depth, and the radial in corrosion rate and that the defect depth is the main factor of pipeline failure. The pipeline reliability index with the pipe yield strength increases in a linear increased, and rapidly reduces with inside pressure increasing.
2013, 33 (2): 39-42.
Experimental Research and Analysis of ViscosityTemperature  Characteristics and Rheological Characteristics of Lengjia Heavy Oil
YU Lili, WANG Weimin, WANG Liang, ZHANG Chunjing
Abstract316)      PDF (1727KB)(221)      
In order to provide basic data for optimization of the heavy oil conveying pipeline and research of its energy saving technology, the heavy oil viscositytemperature characteristics and the rheological characteristics were done for the experiment research. The heavy oil viscositytemperature equations and rheological equations were fit by Matlab software and the viscositytemperature curve and the rheologicaltemperature curve were drawn by Origin 8.0 software. The analysis results of fitting viscositytemperature curve and its data show that the relative error is smaller between the calculated value of apparent viscosity and the experimental value; the analysis results of the rheological characteristics show that LengJia heavy oil assumes the characteristics of the Newton fluid between 50 ℃ and 80 ℃; Inspection of the 2norm of error vector of the fitting curve indicates that the fit of the fitting curve with the actual situation is good.
2013, 33 (2): 43-47.
WasteHeat Utilization Technology of Residual  Saturation Water in Steam Injection Boiler
YU Huipeng, LIU Baoyu, LI Mingchuan,ZHANG Yuting
Abstract489)      PDF (2073KB)(260)      
Steam injection boiler is one of the main power and energy consumption equipments in oil thermal production. Generally, the high temperature saturated water enthalpy which is separated by the steam separator is used through the heat exchanger. However the water treatment system of the steam injection boiler is so simple and the separated saturated water is rich in calcium,magnesium and other ions which are easy to foul pipe surface and affects the heat transfer efficiency of the heat exchange equipment. Comparing with the case of no using the equipment, the screw expander which is of a selfcleaning ability recycled the waste heat of the saturated water, which can improve the thermal efficiency by 10.2% and save about 4.56×107 kW·h amount to 18 422.4 t of standard coal in the service period. The effect is significant.
2013, 33 (2): 48-51.
ffect of Transportation Quantity of Backward Products on MixedOil for Batch Transportation
ZHANG Ning, WU Ming,HU Zhiyong,YANG Yunpeng, GE Lei
Abstract387)      PDF (3335KB)(225)      
The transportation quantity of backward products in batch transportation of products often changed for some reasons, resulting in the changes of feature of mixed oil during batch transportation. To solve this problem, the governing equations of contaminated product were established based on multiphase flow model. Discrete numerical calculation were made with finitevolume method. The results show that the law of mixedoil’s feature variation is different with the quantity of backward products and among different periods. The increase of the transportation quantity of backward products can reduce the mixed volume, and when transportation sequence is different,the influence of changes of transportation quantity on growth rate of the mixed volume is also different.
2013, 33 (2): 52-55.
MultiWay Batch Process Monitoring Based on MPCAMHMT
LIU Wei, SU Chengli
Abstract536)      PDF (2750KB)(173)      
In order to overcome the misclassification problems, multiway batch process monitoring based on the waveletbased multihidden Markov model tree (MHMT) was developed. MHMT can capture the clustering and persistence of the statistical characteristics for practical measured data. This approach provides less signal distortion and better understanding of the principal source of the system variability affecting the process. It solved the problem that discrete wavelet transform(DWT)can not obtain shiftinvariance,and then made simple modifications of the expansion structure, the method using stochastic model analysis the time domain expanded to timefrequency domain and extracted the main characteristics of the historical data, it is a good way to solve the multiway batch process monitoring problem. The proposed method was used to evaluate the industrial penicillin fermentation process data,the results clearly demonstrated the power and advantages of the proposed method in comparison with conventional MPCA method.
2013, 33 (2): 56-59.
ATP System Spot Detecting Method in Space Laser Communication
ZHANG Yanyan, CHEN Yu, YAO Hongliang
Abstract490)      PDF (1478KB)(199)      
Wireless laser communication is a new form of communication in which information is promulgated through space and the laser is used as carrier wave. The ATP technology with highprecision and highautomation is one of the key techniques, which can be related to the success of creating the space optical communication link and the quality stand of communication. It is analyzed the fourquadrant detection technology and area array CCD detection technology, gave the specific calculation algorithm of the spot center and dew the relevant conclusions through simulations. The simulation results show that, for QD detection, in order to restrain the background light can be used for audio modulation; CCD array detector, using spatial filtering to eliminate the influence of background light, and then laid the groundwork for the establishment of optical communication link.
2013, 33 (2): 60-62.
The Power Quality Disturbance Detection and  Classification Method Based on EMD
WU Ronghua,WANG Tianshi,HOU Baoming
Abstract363)      PDF (2444KB)(242)      
In view of the signal detection and classification of power quality disturbance problem,the power quality disturbances detection and classification methods based on EMD were proposed, and the common several kinds of disturbance signal were simulated. The time of disturbance occurrence and duration, the frequency and amplitude of disturbance can be detected accurately by this method. Such as voltage sags, voltage swells, voltage interruptions and other disturbances raised the signal amplitude and frequency changes can be estimated. The results of MATLAB simulation show that the proposed method is simple and effective. 
2013, 33 (2): 63-66.