Experimental Research On Supported Bimetallic Catalyst Catalytic Hydrogenation Of Carbon Dioxide

Due to the excessive emission of greenhouse gas,global warming has become one of the most serious envirnomental problems.As one kind of major greenhouse gas,the problem of carbon dioxide emission mitigation has become hot research in domestic and overseas scholars.The development of carbon dioxide capture,storage and utilization technology has gained widely attention in whole world.Coal-fired power plant as for a major emitter of carbon dioxide,using the carbon dioxide as ingredient and utilization is an innovation subject in the power industry.This dissertation presented a catalytic system,which can transform carbon dioxide into organic acid effctively under mild condition by using hydrogen donor M and self-prepared catalyst.This system provide a new way for carbon dioxide utilization and flu gas cleaning in coal-fired power plant.The main contents of this dissertation are showed as follows:Firstly,the experimental research of transform carbon dioxide into organic acid.The main task is to design experimental scheme,choose influencing parameters,establish the best reaction condition and data analyses.The experiment results showned,hydrogen donor M can transform carbon dioxide into organic acid in mild condition.The key parameters of reaction is the reaction temperature,concentration of M,pH,and flow velocity of gas.Secondly,the experimental research of catalysts in the catalytic transform of carbon dioxide with hydrogen donor M.The main task is to compare different kinds of catalysts catalytic performance,design an orginal catalyst,eatablish the beat preparation conditions.The best preparation condition of catalysts were explored.Factors that can enhance the catalytic efficiency include carrier,impregnation time,calcination temperature and material proportion.In addition,it was shown by relevant experimental results that: the selfpraepared catalysts could improve the efficiency of carbon dioxide conversion significantly.Thirdly,the detection of reaction products,exploration of reaction mechanisms and expectation of the research.The main work include the detection organic acid of reaction products,characterized catalysts,and preliminary exploration of reaction mechanisms,and expectation of the research...