典型文献
Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction kinetic modeling
文献摘要：
The production of solar fuels via the photo-reduction of carbon dioxide to methane by titanium oxide is a promising process to control greenhouse gas emissions and provide alternative renewable fuels.Although several reaction mechanisms have been proposed,the detailed steps are still ambiguous,and the limiting factors are not well defined.To improve our understanding of the mechanisms of carbon dioxide photoreduction,a multi-physics model was developed using COMSOL.The novelty of this work is the computational fluid dynamic model combined with the novel carbon dioxide photo-reduction intrinsic reaction kinetic model,which was built based on three-steps,namely gas adsorption,surface reactions and desorption,while the ultraviolet light intensity distribution was simulated by the Gaussian distribution model and Beer-Lambert model.The carbon dioxide photoreduction process conducted in a laboratory-scale reactor under different carbon dioxide and water moisture partial pressures was then modeled based on the intrinsic kinetic model.It was found that the simulation results for methane,carbon monoxide and hydrogen yield match the experiments in the concentration range of 10-4 mol·m-3 at the low carbon dioxide and water moisture partial pressure.Finally,the factors of adsorption site concentration,adsorption equilibrium constant,ultraviolet light intensity and temperature were evaluated.
文献关键词：
中图分类号：
作者姓名：
Xuesong Lu;Xiaojiao Luo;Warren A.Thompson;Jeannie Z.Y.Tan;M.Mercedes Maroto-Valer
作者机构：
Research Centre for Carbon Solutions,School of Engineering and Physical Sciences,Heriot-Watt University,Edinburgh EH14 4AS,UK
文献出处：
引用格式：
[1]Xuesong Lu;Xiaojiao Luo;Warren A.Thompson;Jeannie Z.Y.Tan;M.Mercedes Maroto-Valer-.Investigation of carbon dioxide photoreduction process in a laboratory-scale photoreactor by computational fluid dynamic and reaction kinetic modeling)[J].化学科学与工程前沿,2022(07):1149-1163
A类：
photoreactor
B类：
Investigation,carbon,dioxide,photoreduction,process,laboratory,scale,by,computational,fluid,dynamic,kinetic,modeling,production,solar,fuels,via,methane,titanium,promising,control,greenhouse,gas,emissions,provide,alternative,renewable,Although,several,mechanisms,have,been,proposed,detailed,steps,are,still,ambiguous,limiting,factors,not,well,defined,To,improve,our,understanding,multi,physics,was,developed,using,COMSOL,novelty,this,work,combined,intrinsic,which,built,three,namely,adsorption,surface,reactions,desorption,while,ultraviolet,light,intensity,distribution,simulated,Gaussian,Beer,Lambert,conducted,different,water,moisture,partial,pressures,then,modeled,It,found,that,simulation,results,monoxide,hydrogen,yield,match,experiments,concentration,range,low,Finally,site,equilibrium,constant,temperature,were,evaluated
AB值：
0.538005
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