典型文献
CO2 capture by double metal modified CaO-based sorbents from pyrolysis gases
文献摘要：
High-temperature pyrolysis technology can effectively solve the problem of municipal solid waste pollu-tion.However,the pyrolysis gas contains a large amount of CO2,which would adversely affect the sub-sequent utilization.To address this problem,a novel method of co-precipitation modification with Ca,Mg and Zr metals was proposed to improve the CO2 capture performance.X-ray diffraction(XRD)patterns and energy dispersive X-ray spectroscopy analysis showed that the two inert supports MgO and CaZrO3 were uniformly distributed in the modified calcium-based sorbents.In addition,the XRD results indicated that CaZrO3 was produced by the reaction of ZrO2 and CaO at high temperatures.The effects of doping ratios,adsorption temperature,calcination temperature,CO2 concentration and calcination atmo-sphere on the adsorption capacity and cycle stability of the modified calcium-based sorbent were studied.The modified calcium-based sorbent achieved the best CO2 capture performance when the doping ratio was 10:1:1 with carbonation at 700℃under 20％CO2/80％N2 atmosphere and calcination at 900℃under 100％N2 atmosphere.After ten cycles,the average carbonation conversion rate of Ca-10 sorbent was 72％.Finally,the modified calcium-based sorbents successfully reduced the CO2 concentration of the pyrolysis gas from 37％to 5％.
文献关键词：
中图分类号：
作者姓名：
Xiaobin Chen;Yuting Tang
作者机构：
School of Electric Power,South China University of Technology,Guangzhou 510640,China;Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization,Guangzhou 510640,China
文献出处：
引用格式：
[1]Xiaobin Chen;Yuting Tang-.CO2 capture by double metal modified CaO-based sorbents from pyrolysis gases)[J].中国化学工程学报（英文版）,2022(03):40-49
A类：
B类：
capture,by,double,modified,CaO,sorbents,from,pyrolysis,gases,High,technology,can,effectively,solve,problem,municipal,solid,waste,pollu,However,contains,large,amount,which,would,adversely,affect,sub,sequent,utilization,To,address,this,novel,method,precipitation,modification,metals,proposed,improve,performance,ray,diffraction,patterns,energy,dispersive,spectroscopy,analysis,showed,that,two,inert,supports,MgO,CaZrO3,were,uniformly,distributed,calcium,In,addition,results,indicated,produced,reaction,ZrO2,high,temperatures,effects,doping,ratios,adsorption,calcination,concentration,capacity,stability,studied,achieved,best,when,carbonation,under,N2,atmosphere,After,ten,cycles,average,conversion,rate,Finally,successfully,reduced
AB值：
0.525496
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