Based on the test data correlation of the FCC gasoline composition, induction period and absorbance, influence law of phenols on storage stability of FCC gasoline were analyzed. The results show that the phenols compounds in the FCC gasoline are antioxidant and acidic catalyst of creating color and resins. The more phenols in the FCC gasoline, the longer the induction period is and the faster the color do. When phenols content in the FCC gasoline is more than 200 μg/g, induction period of  FCC gasoline is decrement as diene number increment; and storage absorbance is  increment as both diene number and basic nitrogen increment. Otherwise phenols content is less than 120 μg/g, the FCC gasoline color is steady，but induction period is shorter. The change of gasoline storage absorbance or induction period is smaller, when the diene value is from 0.7 to 2.6 g(I2)/(100 g). The phenols content is controlled by optimizing catalytic feed, controlling basic pre-wash deepness and optimizing various gasoline blend as well as adding antioxidant, so storage stability of gasoline is improved.

Extremely pure naphthalene is the raw materials of some high level industrial products, and it can be attained from the industrial naphthalene fraction by desulphurization and purification. The primary impurity in industrial naphthalene fraction is the sulfide thionaphthene, which is very difficult to be removed off by ordinary separation methods. Oxidative desulphurization with oxidant hydrogen peroxide and catalyst formic acid was studied, and the effects of formic acid amount, hydrogen peroxide amount, reaction temperature and reaction time on desulphurization ratio were investigated experimentally. The result indicates that the desulphurization rate simply increases with the increasing of formic acid amount, but it increases at first and then goes down with the increasing of hydrogen peroxide amount, and there is an optical amount range. The viscosity decreases with the increasing of temperature, which is help to the mixing of oil and water phase, and thus to improve the reaction and the desulphurization rate, and the optical temperature is 89~92 ℃. Under the optimized condition of n(H)/n(F)=3.65, n(H)/n(S)=8.49, 89 ℃ and 60 min, the desulphurization rate can reach to 97.90%, and after purified the oil phase by distillation to remove the [KG*4]resultant [KG*4]and [KG*4]the non-sulfide impurity, the  content  of  naphthalene  in  the  product is  more  than 99.90%, and is clearly higher than the industrial product(97.06%).

Synthesis of 2,5-di-(tert-butyl)hydroquinone(DBHQ) by alkylation of hydroquinone with methyl tert-butyl ether (MTBE) was studied. The optimum was discussed with the method of orthogonal design. The effects of reaction time,

molar ratio of hydroquinone and MTBE and solvent dosage on the yield of DBHQ were also investigated.The optimum conditions for synthesizing DBHQ are as follows: n(hydroquinone)/n(MTBE)) is 2.1∶1，n(hydroquinone)/n(catalyst) is 1∶0.1,the reaction temperature is about 90 ℃, the reaction time is 1.5 h,volume ratio of alcohol and water is 1∶2. Under the optimum conditions, the content of DBHQ in the product is above 99%, the average yield of DBHQ is 60%.

The Kier's sharp index ( mK ) (m=1,2,3) of dioxin-like aromatic halides（PCDDs，PCDFs，PCBs，PCDEs）were calculated based on molecular topological theory. The quantitative structure-property relationship models (QSPR) between solubility, octanol-water partition coefficients and mK were investigated with linear regression method. The calculated values from these models were agreeable with the experimental values well. Further more Jackknifed method was applied to examine the robustness of estimated models. The results show that these models proves applicable for their stability and predictability. 

The combinational chemical agent washing experiment was carried out in order to solve the problem of low oil sand elution efficiency by using water. The affection of NaOH, Na ₂CO ₃ , combinational chemical agent and XY series agent on elution ratio of oil sand of inner Mongolia Tumidi area was studied. The optimization combinational chemical agent was selected according to the oil sand elution ratio. The experiment result shows that in the experimental condition of agent with the oil sand quality ratio is 1∶1, the constant temperature 85 ℃ and heats up for 60 min, elution ratio of NaOH and Na ₂CO ₃  combinational chemical agent is better than single lye, when XY-1 and XY-2 combustion with alkali, the optimization prescription is NaOH(1.0%)+Na ₂CO ₃ (1.0%)＋XY-1(0.15%) and NaOH(1.0%)+Na ₂CO ₃ (1.5%)＋XY-2(0.10%).

Two tests were designed to investigate activated carbon adsorbing gasoline vapor. In the inlet vapor-air mixture of the adsorption towers, the vapor volume fractions were 0.05 and 0.40, and the mixture flow were 40 m3/h and 65 m3/h respectively. The test results show that their recovery rate are above 95%, but test I appeared lower heat effect in carbon bed than test II, because the temperature increase in their beds were 43.1 ℃ and 72.2 ℃ respectively. A new integrated technology of absorption-adsorption for gasoline vapor recovery was developed. The recovery rate is up to 99.6%, and the outlet vapor volume fraction can be controlled below 0.003 2. Heat effect in the new carbon bed is the lowest, because the temperature increase in the bed is below 35 ℃. The integrated system will repay lower investment than the single absorption and higher safety than the single adsorption. The integrated system will appear distinct comprehensive benefit. 

Flame radiation hazard of petrochemical plants' flare systems was studied from fluid dynamic. CFD technique was used to simulate flame radiation under 500 t/h discharge and radiation field around flare was established. The software Statistica was used to fit the relationship between heat radiation intensity and horizontal distance to the center of flame. Based on safe heat radiation intensity 81.5 m is obtained as the safety distance for personnel on the ground according to the requirement of the standard SH3009-2001. This safety distance is important for emergency response and personal protection.

Surface of nano-ZnO was modified by the aluminate, then compared with titanate and silane coupling agent respectively. The results show that the effect of aluminate is slight better than titanate, the effect of aluminate and titanate is better than silane coupling agent. Using aluminate coupling agent to modify the nano-ZnO, the optimal experiment condition is as below: coupling agent amout is 1%, reaction temperature is 100 ℃, reaction time is 30 min, ultrasonic time is 20 min. Under the condition, the oil-affinity degree and water-sorption percent are 70.37% and 4.79% respectively. The corresponding groups of the coupling agent are introduced to the sufficient function between the nano-ZnO and couping agent. The dispersing properties of the modified nano-ZnO are improved markedly. 

The conditions of coke formation and conversion of residual oil hydrocracking were studied intensively. Conditions included reaction temperature（410～440 ℃） and partial hygrogen pressure（3.0～7.0 MPa）and time（20～80 min）. The experiment was carried in high pressure autoclave without catalyst. The degree of coke and conversion of residual oil hydrocracking increased as reaction temperature and time and partial hygrogen pressure  increased,  but partial hydrogen pressure  effected the degree of coke slightly. The results show that the optimum condition is: at 430 ℃ and 7.0 MPa when reacting 20 min. 

The method for detaching oil sand by ultrasonic was put forward aiming at the problems which oil-sand separation. The results show that the state of ultrasonic cavitation has large influence upon the effect of oil removing from oil sand, and the best state of ultrasonic cavitation is weak ultrasonic cavitation. The effects of the ultrasound frequency, power, time, temperature on the separation of oil and sands were studied. From orthogonal test, the optimum conditions of oil-sand separation are the ultrasonic frequency 40 kHz, utrasonic power 50 W, operative temperature 50 ℃ and treatment time 20 min. The removal rate of oil from oil sand is above 94% at this condition. It is show that the method for detaching oil sand by ultrasonic is feasible.

NaY zeolite was modified with oxalic acid. The HY zeolite were obtained by liquid phase ion exchange. And two Y zeolites (NaY,HY) were compared by selective adsorptive desulfurization from FCC gasoline.The results show that the HY zeolite adsorptive desulfurization effect is better than NaY zeolite. The molded HY zeolite is more effective than the unmolded HY zeolite. HY zeolite which contained 25%(mass fraction) γAl ₂O ₃ is more effective than HY zeolite which did not. When the static adsorptive desulfurization time of HY zeolite is 6 h,mass ratio of solid and fuel is 1∶3, WHSV is 0.5 h ^-1 ,the effect of HY is the best. The rate of regeneration of the molded HY zeolites is 92.69%.

The Weierstrass-Mandelbrot function was introduced, which can characterize the rough surface topography. Two methods to evaluate the fractal parameters of the rough surface topography (i.e. power spectrum and structure function) were analyzed. The radial and circumferential profiles of friction pair of GY70 mechanical seals were measured by the AF-LI type stylus profilometer, and the fractal characteristics of the profiles were analyzed by the structure function. The radial and circumferential fractal dimensions of the rotating ring end face are 1.293 and 1.291 respectively, and that of the stationary ring end face are 1.288 and 1.283. The results indicate that the rotating and stationary ring profiles of friction pair are isotropic and have the statistical self-affine dimension characters.

The microstructure of X80 pipeline steel systemically was characterized by optical microscope, scanning electronic microscope, and transmission electron microscope, and studied electrochemical behavior of X80 pipeline steel in Ku'erle simulated soil solution, NS4 solution and Yingtan simulated soil solution by Potentiostat/Galvanostat model 2273.  It is shown that the microstructure of X80 pipeline steel is characterized by polygonal ferrite, acicular ferrite, and martensite-austenite (M/A) constituents.  There are dislocation cells and sub-grains in a ferrite grain and a lot of dislocation tangled around ferrite grain boundaries.  Only active region, and no

active-passive transition region is found in polarization curves of X80 pipeline steel in Ku'erle simulated soil solution, NS4 solution and Yingtan simulated soil solution.  Corrosive current density of X80 pipeline steel is the largest in Ku'erle simulated soil solution, and less in NS4 solutions, and the least in Yingtan simulated soil solution. Corrosive current density of X80 pipeline steel in Yingtan simulated soil solution is close to that of in NS4 solutions, but both of them much less than that of in Ku'erle simulated soil solution.

The model for gas, heat and power cogeneration system in winter was established. State parameters and procedure parameters of the system were obtained by process simulation on platform of Aspen Plus. Performance of the system was evaluated by energy integrated utilization coefficient of the system, profit, thermal efficiency of combined cycle and energy integrated utilization coefficient of heat-power cogeneration subsystem. Influences of key operation variables on these coefficients were analyzed. The results show [KG*4]that the [KG*4]thermal [KG*4]efficiencies of [KG*4]gas [KG*4]cycle, vapor [KG*4]cycle and combined cycle are 33.55%, 29.76% and 38.48% respectively. The energy integrated utilization coefficient of the system and the energy integrated utilization coefficient of heat-power cogeneration subsystem are 75.94% and 53.31% respectively.

The S ₂O ^2- ₈/ZrO ₂  solid acid catalyst was prepared from ZrOCl ₂ and (NH ₄) ₂S ₂O ₈ by precipitation, aging, filtering, washing, drying, impregnation and calcination processes. The characterization of the catalyst was performed using XRD, FT-IR and NH ₃-TPD. The effect of calcination temperature on the acidic property, textural property and catalytic perfomance of S ₂O ^2- ₈/ZrO ₂ solid acid catalysts was studied. XRD patterns show that the catalyst present is higher tetragonal phase. FT-IR spectra shows that S ₂O ^2- ₈ is strongly bind with the ZrO ₂ surface bidentately. With S ₂O ^2- ₈/ZrO ₂ as catalyst,the effects of molar ratio of glycol to aldehyde, quantity of catalyst, reaction time on the yield of acetalation was more systematically studied and the best reaction conditions were confirmed.  The results show that the molar ratio of butyraldehyde to glycol is 1∶1.4, the quantity of catalyst is equal to 0.25% of feed stocks, the reaction time is 50 min, and the yield of butyraldehyde glycol acetal can reach 75.8%; the yield of benzaldehyde glycol acetal is 68.8% under the following conditions：molar ratio of benzaldehyde to glycol 1∶1.25, the quantity of catalyst 0.5% of feed stocks, the reaction time 50 min.