摘要
CO_(2)捕集是实现碳中和的重要技术路径。该文实验研究了298、348K的单组分CO_(2)和298、313K的CO_(2)/H_(2)O双组分气体,在活性炭、活性氧化铝、3A、13X中的等温吸附和动态吸附特性。基于Langmuir、LRC、Toth、DA、Freundlich吸附模型,对单组分CO_(2)吸附预测与实验结果进行了对比分析。研究了CO_(2)/H_(2)O吸附过程进气水蒸气含量、流量、温度对4种吸附剂的穿透曲线和吸附量的影响规律。结果表明,单组分CO_(2)吸附量:13X>活性炭>活性氧化铝>3A,CO_(2)/H_(2)O穿透时间随流量增大和温度升高而缩短;沸石类穿透时间随水蒸气含量增多而缩短,其他吸附剂表现相反;水蒸气含量增加会抑制CO_(2)吸附;3A具有较好的CO_(2)/H_(2)O吸附选择性。
CO_(2) capture is an important technology to achieve carbon neutrality.The isothermal adsorption and dynamic adsorption characteristics of CO_(2) at 298 and 348K and CO_(2)/H_(2)O mixtures at 298 and 313K on activated carbon,activated alumina,zeolite 3A and 13X were studied experimentally.The Langmuir,LRC,Toth,DA,Freundlich adsorption models were used to predict the adsorption of CO_(2) and compared with the experimental results.The effects of inlet steam mole fraction,flow rate and temperature on the breakthrough curves and adsorption amounts of CO_(2)/H_(2)O on these adsorbents were analyzed.Results show that the adsorption amounts of CO_(2) on adsorbents rank as following:13X>activated carbon>activated alumina>3A.The CO_(2)/H_(2)O breakthrough time decreased with increasing flow rate and temperature.As steam mole fraction increased,the breakthrough time of 3A and 13X decreased,while other adsorbents increased.The increasing water mole fraction inhibited CO_(2) adsorption.3A showed a good selectivity for CO_(2)/H_(2)O.
作者
唐进京
鲁军辉
李俊明
王随林
TANG Jinjing;LU Junhui;LI Junming;WANG Suilin(School of Environment and Energy Engineering,Beijing University of Civil Engineering and Architecture,Xicheng District,Beijing 100044,China;Department of Energy and Power Engineering,Tsinghua University,Haidian District,Beijing 100084,China)
出处
《中国电机工程学报》
EI
CSCD
北大核心
2022年第6期2216-2226,共11页
Proceedings of the CSEE
基金
国家重点研发计划项目(2016YFB0600105)
北京学者计划项目资助(2015No.022)
北京市博士后工作经费资助项目(2021-zz-112)。
作者简介
唐进京(1997),女,硕士研究生,研究方向为电厂烟气碳捕集与封存利用工艺,2108140419006@stu.bucea.edu.cn;通信作者:鲁军辉(1989),男,讲师,研究方向为碳捕集与封存及利用中的传热传质,lujunhui@bucea.edu.cn。
