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STUDY ON low-temperature catalyst FOR CLOSED-CYCLE CO2 LASER

Chinese Journal of Catalysis 1998年第5期 2-3页

作者： Li Shiyao, Li Beilu, Sun Laisheng, Li Hengqiang (Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023)

ｌｏｓｅｄｃｙｃｌｅＣＯ２ｌａｓｅｒｓａｒｅｕｓｅｄｆｏｒｃｏｎｔｒｏｌａｎｄｇｕｉｄｅ，ａｔｍｏｓｐｈｅｒｉｃｍｅａｓｕｒｅｍｅｎｔ，ｌａｓｅｒｃｏｍｍｕｎｉｃａｔｉｏｎａｎｄｌａｓｅｒｒａｎｇｅｆｉｎｄｉｎｇ... 详细信息

ｌｏｓｅｄｃｙｃｌｅＣＯ２ｌａｓｅｒｓａｒｅｕｓｅｄｆｏｒｃｏｎｔｒｏｌａｎｄｇｕｉｄｅ，ａｔｍｏｓｐｈｅｒｉｃｍｅａｓｕｒｅｍｅｎｔ，ｌａｓｅｒｃｏｍｍｕｎｉｃａｔｉｏｎａｎｄｌａｓｅｒｒａｎｇｅｆｉｎｄｉｎｇａｎｄｓｏｏｎ．Ｉｎａｃｌｏｓｅｄ...

关键词： Carbon dioxide laser Platinum Tin dioxide low temperature catalyst Carbon monoxide Oxidation

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Mechanism explanation for SO_2 oxidation rate of Cs-Rb-V series sulfuric acid catalyst at low temperature

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中国有色金属学会会刊：英文版 2001年第3期11卷 462-465页

作者：陈振兴叶华刘今李洪桂中南大学化学化工学院湖南长沙 410083 中南大学冶金科学与工程系湖南长沙 410083

The reaction kinetics of SO 2 oxidation on Cs Rb V series sulfuric acid catalyst promoted by alkali salts such as cesium and rubidium was studied. A three step reaction mechanism of SO 2 oxidation was proposed, in which it was assumed that oxidation of quadrivalent vanadium complex was a controlling step. Then, a mechanism model equation was concluded according to the three step reaction mechanism. The SO 2 oxidation rate was measured with a non gradient reactor under the conditions of temperature of 380～520?℃ and space velocity of 3?600～7?200?h -1 . Through calculating with Powell nonlinear regression method, the parameters of model equation were obtained: K 1=0.152?exp(-62?073/ (RT) ), K 2=8.18?exp(-2?384/ (RT) ), K 3=0.221?exp(-18?949/ (RT) ). It was found that the model equation could fit with all the experimental reaction rate data very well. [

关键词： reaction mechanism low temperature catalyst sulfur dioxide sulfuric acid

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Preparation of highly dispersed supported Ni-Based catalysts and their catalytic performance in low temperature for CO methanation

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Carbon Resources Conversion 2020年第1期3卷 164-172页

作者： Yongbin Yao Jing Xu Xuhong Guo Jiangwei Li Qixia Zhang Jiangbing Li Chao Wang Mengjuan Zhang Bin Dai Feng Yu Sebastien Thomas Anne-Cecile Roger Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003PR China State Key Laboratory of Chemical Engineering East China University of Science and TechnologyShanghai 200237PR China Key Laboratory on Resources Chemicals and Materials of Ministry of Education Shenyang University of Chemical TechnologyShenyang 110142PR China Graduate School of Science and Technology Hirosaki University3 Bunkyo-choHirosakiAomori 036-8560Japan Institut de Chimie et Procedes pour l’Energie l’Environnement et la Sante(ICPEESUMR CNRS 7515)25 rue Becquerel67087 StrasbourgFrance

The use of non-noble nickel-based catalysts for low temperature CO methanation has been a challenge in recent ***,MgAl layered double oxides sample with high dispersion synthesized by a facile N-(2-Hydroxyethyl)ethylenediaminetriacetic acid assisted wetness impregnation approach,demonstrates much superior catalytic activity and exceptional stability for CO methanation in comparison with the classical Ni/MgAl-LDO catalyst prepared by the ordinary wetness impregnation *** results showed that N-(2-Hydroxyethyl)ethylenediaminetriacetic acid played a positive role in the dispersion of Ni,as well as Ni-support ***-dispersed Ni particles with a size of about 5 nm were formed in the presence of N-(2-Hydroxyethyl)ethylenediaminetriacetic *** to the Ni/MgAl-LDO prepared by conventional impregnation method,the NH-Ni/MgAl-LDO exhibited superior catalytic performance,especially excellent thermal *** NH-Ni30/MgAl-LDO catalyst was found to keep a 70%CO conversion even at 160◦C which demonstrates its good low temperature *** the in situ FTIR observations,this good performance at low temperatures may be linked to the delocalization of electrons around CO caused by surface hydroxyl groups.

关键词： Complexed-impregnation Layered double oxide CO methanation low temperature catalyst

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