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co.version of Benzene in the Catalytic Cracking Process

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China Petroleum Processing & petrochemical Technology 2022年第3期24卷 77-85页

作者： Li Rui Yan Jiasong Geng Qiuyue Chen Hui Su Youyou Wang Yongchao SINOPEC Research Institute of Petroleum Processing co. Ltd.Beijing 100083China wuhan Jinsinopec petrochemical engineering co. Ltd.Wuhan 430223China co.lege of Chemistry and Chemical engineering Xiamen UniversityXiamen 361005China Lier Chemical co. Ltd.Chengdu 610052China

The catalytic cracking of 1-hexene,1-heptene,1-octene,1-nonene,1-decene,and five olefins mixed with benzene,over USY catalysts was co.ducted in a small fixed fluidized bed reactor to study the co.version of benzene under catalytic cracking *** mainly alkylated with C_(2)-C_(5)light olefins,generating monosubstituted alkylbenzenes,and the co.centration of light olefins dramatically affected the alkylbenzene *** to the limitation of thermodynamic equilibrium,the yield of benzene alkylation to alkylbenzene in catalytic cracking was in a relative low *** equilibrium co.stant of benzene alkylation decreases with the increasing reaction temperature which resulted in reduction of alkyl benzene yield.

关键词： alkylbenzene benzene catalytic cracking cracking catalyst olefin

Optimization of Anti-co.lapse Drilling Fluid Systems with High Potassium co.tent

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Fluid Dynamics & Materials Processing 2023年第6期19卷 1609-1622页

作者： Yu Xia Jian Guan Yong Gao Shanfa Tang Jialuo Rong School of Petroleum engineering Yangtze UniversityWuhan430100China Key Laboratory of Drilling and Production engineering for Oil and Gas Wuhan430100China School of Petroleum engineering Yangtze University:National Engineering Research Center for Oil&Gas Drilling and Completion TechnologyWuhan430100China engineering Technology Research Institute of PetroChina Great Wall Drilling engineering co. Ltd.Panjin124000China PetroChina Fushun petrochemical Branch Fushun113006China

The ash mudstone in some oil formations is highly *** oil formation is fractured,and the risk of well leakage and co.lapse is not *** study presents a co.ntermeasure for well co.lapse prevention,based on a“force-chemistry synergistic balance”approach and the utilization of environmentally friendly and efficient hydration *** relevance of this approach is demonstrated co.sidering a drilling fluid system with the high potassium *** analysis shows that the system can maintain good rheological properties,filtration loss and suspension stability even after aging at 130℃ for 16 *** primary roll reco.ery of rock chips is better than 98%.The seco.dary rolling reco.ery rate is 89%.The rapid water loss is close to *** effects of carrying rock,sand,hydration inhibition and dispersion of drill chips are all noticeable.

关键词： Mudstone hydration force-chemistry synergistic balance environmental protection high potassium co.tent potent inhibition anti-co.lapse drilling fluid

Study of Oil-Bearing Drill Cuttings Cleaning and De-Oiling Treatment Method for Shale Gas Reservoirs

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Energy engineering 2023年第8期120卷 1899-1917页

作者： Jialuo Rong Shuixiang Xie Huijing Geng Hao Hu Shanfa Tang Yuanpeng Cheng School of Petroleum engineering Yangtze UniversityWuhan430100China Key Laboratory of Drilling and Production engineering for Oil and Gas Wuhan430100China State Key Laboratory of Petroleum and petrochemical Pollutant co.trol and Treatment Beijing102206China China National Petroleum Group Safety and Environmental Protection Technology Research Institute co. Ltd.Beijing102206China Underground Gas Storage Branch CNPCBeijing100101China

Due to its extensive use in shale gas exploration and development,oil-based drilling fluids generate large amounts of oil-bearing drill cuttings during the drilling *** large amount of oil-bearing drill cuttings generated during the drilling process can lead to serious seco.dary *** this study,a wetting agent FSC-6 with good hydrophobic and oleophobic properties was synthesized to co.struct an efficient oil removal *** the first time,the mechanism of this system was analyzed by using the theory of adhesion function,interfacial tension and *** the same time,a co.bined aco.stic-chemical treatment process was applied to the wastewater and slag generated after the cleaning of the oil-bearing drill *** experimental results show that the application of this pollution-free technology can effectively solve the environmental pollution and resource reco.ery problems of oil-bearing drill *** meets the standard of drilling chips with oil co.tent less than 2%in SY/T7422-2018“Oil-based drilling fluid drilling chips treatment system for oil and gas drilling equipment”.

关键词： Oil-bearing drill cuttings fluorocarbon surfactants chemical cleaning ultrasonic cleaning oil co.tent rate

Unique three-co.ponent co.assembly among AIEgen,L-GSH,and Ag^(+)for the formation of helical nanowires

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聚集体(英文)

聚集体(英文) 2023年第2期4卷 253-266页

作者： Xiaohuan Huang Junrong Li Hong Tang Miao Guo Xue Wang Xiaorong Wang Xu Wang Mingliang Tang Fusheng Zhang Yahui Zhang Xiaopei Li Guangyan Qing Hubei Key Laboratory of Pollutant Analysis and Reuse Technology College of Chemistry and Chemical EngineeringHubei Normal UniversityHuangshiP.R.China CAS Key Laboratory of Separation Science for Analytical Chemistry Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianP.R.China School of petrochemical engineering Liaoning Petrochemical UniversityFushunP.R.China co.lege of Life Sciences Wuhan UniversityWuhanP.R.China

Nature has selected,produced,and evolved numerous molecular architectural motifs over billions of years for particular *** this process,molecular self-assembly plays a critically important *** by these delicate assemblies,scientists devote themselves to developing various sophisticated co.plexes assembled by diverse and numerous structural *** far,most of the examples focus on single-molecule self-assembly or co.assembly between two molecules,seldom works report the co.assembly among three building blocks due to the substantially increased co.plexity and decreased *** we report a novel three-co.ponent co.assembly among L-glutathione(L-GSH),AgNO_(3),and an aggregation-induced emission luminogen(AIEgen),namely triphenylamine-pyridinium(abbreviated to TPA-Py).TPA-Py,L-GSH,and Ag^(+)co.assemble into numerous long and ordered nanowires with left-handed helices,which show remarkable AIE properties that can be observed by naked *** effect is only detected in this system,the replacement of TPA-Py with other AIEgens,L-GSH with other cysteine derivatives or anions,Ag^(+)with other metal ions,co.ld not lead to the unique AIE effect,which endows this system with high specificity and *** work provides new insight into the design of biomolecule reco.nition systems and discloses that ternary co.assembly co.ld beco.e a facile route to build sophisticated nanobiomaterials.

关键词： aggregation-induced emission fluorescence multico.ponent assembly nanowires supramolecular helicity

Synthesis,Characterization and Protonation Study of Novel Poly(thioether imide)s based on Aromatic Heterocyclic Diimide

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Journal of wuhan University of Technology(Materials Science) 2013年第2期28卷 269-273页

作者：赵晓燕 WANG Chenyi ZHAO Xiaohua SUN Zheng co.lege of petrochemical engineering Changzhou University Changzhou Expansion New Stuff Technology co. Ltd School of Materials Science and engineering Changzhou University

Novel poly（thioether imide）s were synthesized by 2,5-dimercapto-l,3,4-thiadiazole, and aromatic heterocyclic chlorodiimids through nucleophilic!substitution reaction as alkali catalysts were presented. The poly（thioether imide）s exhibited good thermal property. The glass transition temperatures of polymers were around 373 ℃, and 10% weight loss temperatures were in the range of 450-500 ℃ in nitrogen/air atmosphere. Meanwhile, the chloroform dilute solutions of these polYmers co.ld show strong UV-vis absorption peaks at about 289 nm. After being protonated by inorganic acids （HC1）, the new shoulder absorption peaks were observed at 350 nm. The PL absorption bands of polymer solutions were in the region of 350-550 nm, which showed the green-yellow fluorescence.

关键词： aromatic heterocyclic chlorodiimide thermal stability fluorescence protonation

Effect of Sand co.tent on Strength and Pore Structure of Cement Mortar

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Journal of wuhan University of Technology(Materials Science) 2017年第2期32卷 382-390页

作者：卜静武 TIAN Zhenghong ZHENG Shiyu TANG Zilong co.lege of Water co.servancy and Hydropower engineering Hohai University Nanjing 210098 China School of petrochemical engineering Changzhou University Changzhou 213164 China Sinohydrao Bureau Seventh co. Ltd. Technology Chengdu 611134 China

The effects of four sand co.tents on the co.pressive, flexural and splitting-tensile strength of cement mortars were evaluated. Moreover, we experimentally investigated the pore structure of cement mortar brought about by changing the sand co.tent and water/cement ratio. The changes in the pore structure were quantified by measuring the porosity and pore size distribution obtained by using mercury intrusion porosimetry（MIP） technique. The test results show that the strengths of cement mortar increase with increasing sand co.tent. It is also suggested that the traditional water/cement ratio law can be applied to cement mortar with different sand co.tents, provided that a slight modification is introduced. Sand co.tent is an important parameter influencing the pore structure of cement mortar. Moreover, there is a good relationship between the pore structure and strength of cement mortar.

关键词： sand co.tent strength cement mortar pore structure

Supercritical carbon dioxide extraction of CLA-ethyl ester

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Frontiers of Chemical Science and engineering 2011年第1期5卷 102-106页

作者： Yingdi CHEN Peng XU Jian CHENG Key Laboratory for Green Chemical Process of Ministry of Education Wuhan Institute of TechnologyWuhan 430073China Hubei Key Lab of Novel Reactor&Green Chemical Technology Wuhan Institute of TechnologyWuhan 430073China Changling petrochemical co.Ltd. SINOPECYueyang 414012China

Supercritical carbon dioxide(SC-co.(2))extraction of co.jugated linoleic acid(CLA)ethyl ester was investigated at pressures in the range of 9 to 10.5 MPa and temperature gradients ranging from 0℃ to 21℃.The co.tent of CLA-ethyl ester in the fraction was analyzed with gas chromatography(GC).The experimental results indicated that the rate of extraction would rise with the increase of pressure when temperature gradient was ***,the extraction pressure had insignificant influence on the selectivity of CLA-ethyl ester in SCco.(2).When pressure was fixed,setting certain temperature gradient can improve the selectivity of CLA-ethyl ester in SC-co.(2),and CLA-ethyl ester can be co.centrated more effectively than without a temperature *** acid value and peroxide value of the fractions were reduced obviously,co.pared to the raw *** optimal co.dition is pressure at 10 MPa and temperature gradient at 11℃.

关键词： supercritical carbon dioxide extraction CLAethyl ester temperature gradient

Photocatalytic Hydrogen Evolution from the Splitting of Water over Cd_(1-x)Zn_xS/K_2La_2Ti_3O_(10) co.posites under Visible Light Irradiation

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Journal of wuhan University of Technology(Materials Science) 2015年第5期30卷 928-934页

作者：刘利 GUO Dongmei 崔文权 HU Jinshan 梁英华 co.lege of Chemical engineering North China University of Science and Technology Hebei Province petrochemical co.struction engineering Quality Supervision Station

A series of Cd1-xZnxS/K2La2Ti3O10 co.posites were synthesized via a simple co.precipitation method. The prepared samples were characterized by X-ray diffraction(XRD), scanning electron microsco.y(SEM), X-ray energy dispersive spectrosco.y(EDX), ultraviolet-visible diffuse reflection(UV-Vis), X-ray photoelectron spectrosco.y(XPS) and photoluminescence(PL) measurements. The co.posite structures co.sisted of Cd1-xZnxS nanoparticles evenly distributed on the surface of K2La2Ti3O10. The absorption edge of K2La2Ti3O10 shifted to the visible light region upon introduction of the Cd1-xZnxS nanoparticles. The photocatalytic activities of the catalysts were evaluated by hydrogen production under visible light irradiation. The prepared Cd0.8Zn0.2S(30wt%)/K2La2Ti3O10 exhibited higher photocatalytic activity, evolving 6.92 mmol/g H2 under visible light irradiation for 3 h. The promoted photocatalytic activity of the co.posites was attributed to the synergistic effect between Cd1-xZnxS and K2La2Ti3O10, which resulted in enhanced separation of photogenerated electrons and holes.

关键词： Cd1-xZnxS/K2La2Ti3O10 co.posites photocatalysis hydrogen evolution water splitting

Adsorption of Pb(Ⅱ)in Water by Niobate/Titanate Nanoflakes

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Journal of wuhan University of Technology(Materials Science) 2020年第4期35卷 726-732页

作者：丁庆伟隋睿 LIU Xiaona 钱天伟 co.lege of Environment and Safety Taiyuan University of Science and TechnologyTaiyuan 030024China co.lege of EnvironmentalScience and engineering Taiyuan University of TechnologyJinzhong 030600China

A niobate/titanat nanoflakes(Nb/TiNFs)co.posite was synthesized via the hydrothermal method and used to remove Pb(Ⅱ)from ***,TEM,and SEM results indicate that Nb/TiNFs appear as nanoflakes,of which the primary crystal phase is ***/TiNFs show rapid adsorption kinetics and the result fits well with the pseudo-seco.d order *** key mechanism of adsorption is ion-exchange between metal and-ONa/*** to the Langmuir isotherm model,the maximum capacity of Pb(Ⅱ)is 488.323 mg·g^-*** relatively low RL values indicate that Nb/TiNFs exhibit favorable adsorption of Pb(Ⅱ).Nb/TiNFs indicate high adsorption capacity over a broad pH ***-existing inorganic ions(Na+and Ca^2+)have a slight inhibition effect on adsorption,and HA moderately inhibits the adsorption of Pb(Ⅱ)on Nb/*** of the simple method of synthesis and high removal efficiency for heavy metals,Nb/TiNFs are a promising material in remediation of heavy metal polluted water.

关键词： Nb/TiNFs Pb(Ⅱ) adsorption ion-exchange