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A Study of the Adsorption of Molecular Deposition Filming Flooding Agent MD-1 on quartz sand

Petroleum Science 2004年第1期1卷 70-74,82页

作者： GaoManglai LiuYong MengXiuxia WangJianshe StateKeyLaboratoryofHeavyOilProcessing UniversityofPetroleumBeijing102249China

Molecular deposition filming flooding (MDFF) is a novel oil recovery technique based on the thermopositive monolayer electrostatic adsorption of the MDFF agent on different interfaces within reservoir systems. In this paper, the adsorption property of the MDFF agent, MD-1, on quartz sand has been studied through adsorption experiments at different pH and temperatures. Experimental data are also analyzed kinetically and thermodynamically. The results show that the adsorption of MD-1 on quartz sand takes place mainly because of electrostatic interactions, which corresponds to adsorption that increases with pH. Kinetic analyses show that at a higher pH the activation energy for adsorption gets lower and, therefore, the adsorption becomes quicker for MD-1 on quartz sand. Thermodynamic analyses show that pH plays an important role in the adsorption of MD-1 on quartz sand. At a higher pH, more negative surface charges result in the increase of electrostatic interactions between MD-1 and quartz sand. Therefore, the saturated adsorption amount increases and more adsorption heat will be released.

关键词： Molecular deposition filming flooding agent quartz sand adsorption kinetics thermodynamics

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New Method for the Deep Dehydration and Desalination of Crude Oil

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China Petroleum Processing & Petrochemical Technology 2023年第4期25卷 74-85页

作者： Lu Yuejia Jiang Peng Song Yueqin Zhou Xiaolong International Joint Research Center of Green Chemical Engineering School of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China

The present work focused on the environmentally friendly deep desalination of crude oil using ethylene glycol as the extraction solvent and quartz sand as the *** effect of droplet size distribution in the emulsion on the dehydration results and desalination efficiency was *** results showed that the desalination efficiencies of Sarir and Basra crude oils were 93.3%and 90.0%,***,the desalination efficiency of Basra crude oil using ethylene glycol could be enhanced up to 96.7%by adding 30 g/L quartz sand with a particle size of 15μ***,94%of the ethylene glycol and 86%of the quartz sand could be recovered from the *** process offers an alternative method to the deep desalination of crude oil.

关键词： crude oil deep desalination demulsification quartz sand

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Removal of Phenanthrene from Contaminated Soil by Ozonation Process

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China Petroleum Processing & Petrochemical Technology 2020年第3期22卷 73-79页

作者： Yang Yixin Gao Wenfang Yang Jingchao Cao Hongbin Beijing Key Laboratory of Fuels Cleaning and Advanced Catalytic Emission Reduction Technology College of Chemical EngineeringBeijing Institute of Petrochemical TechnologyBeijing 102617 Beijing Engineering Research Centre of Process Pollution Control and Key Laboratory of Green Process and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing 100190 College of Environmental and Energy Engineering Beijing University of TechnologyBeijing 100124

In order to improve the ozonation efficiency for the remediation of PAHs contaminated soil,the performance experiments were carried out with quartz sand artificially contaminated with *** byproducts of phenanthrene were detected by GC-MS and the toxicity was evaluated by seed germination *** influence of the particle size and moisture content of quartz sand on the ozonation efficiency was *** addition,two kinds of real soil was used to compare with the quartz *** was revealed that the phenanthrene removal rate reached 96%after 600 minutes by using the ozonation *** byproducts of phenanthrene,including 9,10-phenanthrenedione,(1,1’-biphenyl)-2,2’-dicarboxaldehyde,and(1,1’-biphenyl)-2,2’-dicarboxylic acid,were *** proven by seed germination tests,the toxicity of the byproducts was lower than *** phenanthrene was removed more effectively by ozonation in the quartz sand with finer particle *** ozonation efficiency was significantly improved by increasing the moisture content,which is assumed to be related to the alkalinity of quartz sand.

关键词： ozonation phenanthrene quartz sand soil remediation

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Study on the Water Treatment Properties of the Porous Ceramic Filter Balls Synthesized with Industrial Solid Waste

Study on the Water Treatment Properties of the Porous Cerami...

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2012 China Functional Materials Technology and Industry Forum

作者： Yongjiang Di Bi Jia Jun Wang Xiaohong Xu Jianfeng Wu School of Metallurgical and Materials Engineering Chongqing University of Science and Technology School of materials science and Engineering Wuhan University of Technology

The porous ceramic filter balls were synthesized with industrial solid waste by ceramic *** removal efficiency,filtration velocity and turbidity for the water treatment properties of the porous ceramic ball filter materials was studied comparing with that of the quartz sand filter *** test result shown that the decontamination efficiency of the porous ceramic ball filter was 5%to 10%high than that of the quartz sand *** the water turbidity fluctuated with magnitude about 50%,the changes of final water turbidity was in the range of 5%to 8%through the porous ceramic ball *** energy saving efficiency of the porous ceramic ball filter was very significant for the porous ceramic ball filter effectively extend the filtration cycle life.

关键词： Porous ceramic filter ball quartz sand Water treatment Turbidity Removal efficiency

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Allyl Glycidyl Ether-modified Animal Glue Binder for Improved Water Resistance and Bonding Strength in sand Casting

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Organic Polymer Material Research 2020年第2期2卷 1-7页

作者： Chenchen Fan Qian Tang The Key Laboratory of Applied Chemistry of Chongqing Municipality College of Chemistry and Chemical EngineeringSouthwest UniversityChongqing400715China

This paper aims to develop a modified animal glue sand binder for foundry casting with improved water resistance and bonding *** efficient method is reported by using sodium hydroxide as the catalyst to improve the operability of animal glue binder and allyl glycidyl ether as the modifier to improve the water resistance and bonding *** specimens prepared using allyl glycidyl ether-modified animal glue binder were cured by compressed air at room *** proposed method saves energy and is environmentally friendly and *** with unmodified animal glue binder,standard dog bone sand specimens with allyl glycidyl ether-modified animal glue binder had higher tensile strength of 2.58 MPa,flowability of 1.95 g,better water resistance(a lower decrease in tensile strength at 25°C and relative humidity of 60%),and good *** allyl glycidyl ether-modified animal glue binder is suitable for practical application in the foundry industry.

关键词： quartz sand Modified animal glue Casting binder Allyl glycidyl ether Water resistance

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