The porous alumina washcoat coating on cordierite honeycomb was prepared by microwave heating method. The effects of different preparation parameters on the loading, crystal composition, and pore structure of the alumina coating were studied, and then the alumina washcoat prepared was characterized by BET and SEM tests. The results indicate that the alumina washcoat prepared by microwave heating method is stable and uniform with higher Al2O3 weight ratio, larger surface area and pore volume.
A kind of imidazolinyl quaternary ammonium salt was synthesized with oleic acid, tetraethylenepentamine and benzyl chloride. Then it was transformed into high watersoluble corrosion inhibitor by reaction with organic acid. Some factors, such as the mole ratio of raw materials, reaction time and reaction temperature affecting the anticorrosive capacity of the inhibitor were discussed. As a result, the optimum synthesis conditions is listed below: the molar ratio of organic acid to imidazolinylquaternary ammonium salt 1.1, reaction time 3 h and reaction temperature 150 ℃. The imidazolinebased corrosion inhibitor synthesized under these conditions has better watersolubility, and the corrosion inhibition efficiency to carbon steel is above 85% in the mass of hydrochloric acid aqueous solution is 15% at 90 ℃.
The removal of propanal from high pressure return gas by adsorbing with activated carbon has been carried out. The effect of temperature and feed gas velocity on the removal rate and breakthrough curve has been studied, and the recycled sorbents by different recycling methods were also evaluated. The experimental results show that removing rate of propanal was the highest at 30 ℃. The removing rate of propanal maintained between 70%~90% at the feed gas flow of 30 mL/min. After active carbon adsorbed for 570 minutes, the removing rate of propanal has dropped to about 30% and reached to its adsorption saturation. The removal rate of propanal was above 95% after recycling activated carbon for 3 times at 120 ℃ by steam, which is better method compared with N2blowing method and heating in vacuum.
With Fourier transform of infrared spectroscopy and smart performance sampling, 50 plastic woven bags of different types and different places were analyzed. According to different absorption peaks of infrared spectra, the polymer material (plastic bag) samples were divided into two categories. According to the peak number, peak position, peak shape and relative peak height ratio, we can distinguish each type of sample. At the same time we test the repeatability of the method and the minimum detectable amount. This method does not destroy samples under inspect and has good repeatability. Therefore, it can be used to characterize polymer materials (plastic woven bag）.
Potassium Niobate was obtained by grinding the mixture of niobium formate and potassium hydroxide and small amount of water, then dried at room temperature, and finally calcined at 500 ℃ for 3 h . It can be seen from the Infrared spectroscopy that an ionexchange reaction occurred and NH3 was released during grinding. Assynthesized potassium niobate powders were used to degrade methylene blue solution under irradiation of UV, and found that the catalyst showed better photocatalytic properties, and the degradation ratio reaches to 90% after 3 h reaction.
For offshore pipeline in a multilevel, multivariable, multiple nonquantitative factors, the lack of effective means of quantitative assessment of the conditions, the establishment of a multilevel system of pipeline safety evaluation index, combining analytic hierarchy process to determine the corresponding layers of indicators weight through the use of multilevel gray theory, the pipeline system for safety assessment would affect the level of risk to quantify treatment, given the reliability of inservice pipeline quantify the results. Multilevel grey evaluation method for less data, small sample, incomplete information and lack of experience with the uncertainty calculation was simple, direct, scientific and practical, and could be used to service for the offshore pipeline safety assessment.
Based on the measured oil station coordinate data and longdistance oil pipeline paper topographic map vector data,using ArcGIS combination of Sketchup modeling to realize 3D visualization,storaging graphics and attribute data in Geodatabase,using C# programming language combine of ArcGIS Engine secondary development component , 3D oil station and longdistance oil pipeline information system were designed. The system realized the functions including 2D and 3D Linkage showes,information inquiry,spatial analysis,information output,system maintenance,etc.
The research of shutdown temperature drop rule in heated oil pipeline was the primary condition to ensure the safe restarts of the pipeline. According to the characteristics of service environments of submarine oil pipeline, based on the theory of porous media heat transfer, the submarine soil moistureheat coupling equation was established. Regularity of change of oil temperature was simulated in submarine pipeline during shutdown with time by software．The factors of effecting，such as thermal insulation layer, temperature of seepage flow and speed of seepage flow and so on，were analyzed，which decided a rational time for shutdown and provided a theoretical guidance for safe submarine oil pipeline startup．
The foreign and domestic technology conditions and development tendency of product pipeline were assessed. In allusion to the rapid development of Chinakazakhstan and Chinarussia multinational pipelines, the difference between China and Russia standard were carried out recently. But the oil product pipeline was not involved. The comprehensive operation standard of Russia oil product pipeline was selected. The advantages of the standard were expounded, including detailed oil product arrangement principle, and decreasing the mixing oil by using process buffing piston and limiting the original process mixing oil, and the determination of allowable minimum flow velocity, and strictly controlling the mixing oil cutting concentration, quantitatively blending calculation of mixing oil. Finally, recommendations were made to raise the level of operation standards of Chinese oil product pipeline.
Aiming at Yitong region complex geological conditions, borehole deviation control was difficult, the bit application effect was not good, we carried out the research and application in vertical wells oblique, well bore structure optimization, and bit type optimization. Directional well used "straightincreasestabilitydrop" track type to composite drilling, hole deviation exceeds bid section, vertical drilling system or compound drilling technique was used to achieve the goal of control hole deviation and speed up|the original two open interval optimization from Φ228.6 mm to 241.0 mm hole, solved the problem of the upper reducing open hole section|Select custom bit series was suitable for Yitong and regional characteristics, implemented the new breakthroughs of the PDC bit drilling footage and the improvement of the rate of penetration was again in Yitong region.
In the drilling process of complex deep wells, excessive torque and drag may lead to the difficulty of direction or even sticking. Moreover, if the drilling tools were affected by axial stress, bending stress, shearing stress or buckling stress, fatigue failure might be caused as well as some relevant problems stemming from the inadequate hole cleaning. In order to meet the requirement of deep well drilling, Petrochina Jidong oilfield company introduced the application of COMPASS and WELLPLAN (LANDMARK), which has made the abstract concrete and digitized. This method preferably satisfied the drilling demand of No.3 structure, and at the same time effectively reduced the accident incidence, demonstrably improved the productivity and significantly lowered the drilling costs.
In the process of oilfield development, oil, gas, water and mud flow in the formation or pipe, under the conditions of ripe, oil dirties, scale or dirt would be produced. In actual production, oil and dirt were usually accompanied by the scale, so the scale trend prediction research was critical. the theoretical model of OddoTomos saturation index method, and how to make use of OddoTomos saturation index method to predict the scale in the process of production were introduced in this paper, the field scale influence on oil field, to provide theoretical basis for production in the next step were expounded and analyzed.
Using the threedimensional software ANSYS WorkBench for nonbeam pumping unit for dynamic analysis, the threedimensional finite element model of the pumping unit rack was established. To ensure that the system could be fully reflected in the dynamic analysis of the characteristics of its own force , firstly , the software prestress modal frame was used to analysis the pumping units static characteristic, and then the module was used on the rack's modal analysis, the rack's front nine natural frequencies and mode shapes were obtained. The results showed the Prestress had a little influence to the intrinsic characteristics of rack, and it could be neglected, and the rack structure affected the overall stability of the rack|through the analysis, changing the form and structure of the rack scantlings could improve the system's stability. Thereby the life of the rack was enhanced.
According to FCC（catalytic cracking）gasoline desulfurization, a set of test device was designed. The working principle of the experimental device and the selection of the key equipment were introduced in the article. It would effectively reduced the pulsation and solved the low metering accuracy of the pump, and the mixing time of the static mixer was too short and resulted in undermixing, and heat loss was too much and so on. From a longterm perspective, the design of desulfurization device provided a new way and making up for the deficiency of the existing desulfurization device.
In the actual systems, due to the computation accuracy or parameter drift affecting the controllers, the control effect of the original design would be inevitably destroyed. To deal with this problem, the nonfragile guaranteed cost control of singular Markov jump system with time delays was considered. Under the conditions of perturbation with addition and multiplication properties, the sufficient existence conditions for control gain were expressed by linear matrix inequalities respectively. In the case, the guaranteed cost control of singular Markov jump system with timedelay could be achieved. Finally, the effectiveness of the method was verified by a numerical example.
The traditional sense of the flame size detection methods had the high detection error rate and easily influenced by sunlight conditions, and the flame region segmentation of images with complicated background still existed suspecting flame area. In order to improve the existing test methods， a method to detect the flame size puted forward in this paper ,based on RGB and HIS color space. This method combined two kinds of color space of flame characteristics, defining a new flame judgment constraint condition, and via the ratio between RGB color component values to eliminate light effects. By testing the images about different background, the results proved that the proposed method could effectively measure the flame size.
The corporate governance structure of internal and external factors were listed in this article to the GEM manufacturing 20102012 data for the study sample, it would affect the performance of the combine and the introduction of control variables, listed on the GEM manufacturing software analysis by SPSS19.0 relations corporate governance and performance. The results showed that GEM manufacturing corporate governance structure and performance has a certain relevance.
Human resources were an essential driving force and a source of economic development. And it was vital to develop human resources to boost a region's economy. Based on analyzing the current situation of human resources development in Qingyuan County, this research's results positively confirmed the findings, defined the strategic position of human resources development, carried out the works to step up the professional quality, vigorously developed education training, promoted the reasonable distribution on human resources, increased employment opportunities, to raised the way of utilization rate human resources. These suggestions and measures could provide some useful reference for economic development and human resource development in other areas.
The multiple orientation was developed and the spatial long distance noncontact measuring equipment adopting the technology of telescope，precision angle measuring scale, multidimensional adjustable tripod and mechanical connection. This equipment was simple in structure and reliable in performance. Its measurement accuracy reached 0.15%. it could not only be used to measure the distance between long distance objects which were not touchable by human beings because toxic, radioactive, high temperature, and carrying virus, but also be used as an experiment in colleges and universities. Thus was highly practically valuable.
