硅胶的二氧化碳吸附性能及其与微孔结构的关系
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- 英文论文题名：Relationship Between Microstructure of Silicon Gel and Its Adsorptive Performance of Carbon Dioxide
- 论文作者：梅华 ; 陈道远 ; 姚虎卿 ; 沈健
- 英文论文作者：MEI Hua ; CHEN Dao-yuan ; YAO Hu-qing ; Shen Jian ; Department of Chemical Engineering ; Nanjing University of Technology ; Research Center of Surface and Interface Chemical and Engineering Technology ; Nanjing University
- 年：2015
- 作者机构：南京工业大学化学化工学院;南京大学表面与界面化学工程技术研究中心;
- 论文关键词：硅胶 ; 二氧化碳 ; 吸附 ; 微孔结构
- 英文论文关键词：silicon gel ; carbon dioxide ; adsorption ; microstructure
- 会议召开时间：2015-09-22
- 会议录名称：2015年全国无机硅化物行业年会暨新常态行业发展研讨会论文集
- 语种：中文
- 分类号：TQ424.2
- 学会代码：WJYG
- 会议名称：2015年全国无机硅化物行业年会暨新常态行业发展研讨会
- 会议地点：中国湖北宜昌
- 主办单位：中国无机盐工业协会无机硅化物分会
- 学会名称：中国无机盐工业协会无机硅化物分会
- 页数：5
- 文件大小：352k
- 原文格式：O
- 会议级别：全国
摘要
实验测定了CO_2、N_2在两种硅胶上的吸附平衡数据,用柱动态法研究了硅胶吸附剂在CO_2/N_2和CO_2/H_2体系中对CO_2的动态吸附性能,比较了两种硅胶吸附剂吸附穿透曲线和吸附性能的差异,并研究硅胶的微结构特性对吸附二氧化碳性能的影响。结果表明:比表面大、孔径分布趋向细孔有利于硅胶对二氧化碳的吸附,而适当的孔分布则有利于硅胶吸附剂减小扩散阻力。研究结果为硅胶吸附剂的改进以及变压吸附在合成气脱碳过程中的应用提供了依据。
The adsorption equilibrium data of N_2 and CO_2 on two kinds of silicon gel were measured.The dynamic adsorption characteristics of CO_2 in gas mixtures,CO_2/N_2 and CO_2/H_2,were also studied.A comparison of breakthrough curves and adsorbed amount of CO_2 on two adsorbents was made,and the effect of the microstructure on the adsorption of CO_2 was researched and found that the large surface area and the micropore inside silicon gel were favorable to the adsorption of CO_2.The appropriate distribution of bore diameter was beneficial to reduce the diffusion resistance of silicon gel.The resultsof this paperoffered a method forimproving the silicon gel adsorbents and applying them in pressure swing adsorptive(PSA) process of removing CO2 from synthesis gas.
The adsorption equilibrium data of N_2 and CO_2 on two kinds of silicon gel were measured.The dynamic adsorption characteristics of CO_2 in gas mixtures,CO_2/N_2 and CO_2/H_2,were also studied.A comparison of breakthrough curves and adsorbed amount of CO_2 on two adsorbents was made,and the effect of the microstructure on the adsorption of CO_2 was researched and found that the large surface area and the micropore inside silicon gel were favorable to the adsorption of CO_2.The appropriate distribution of bore diameter was beneficial to reduce the diffusion resistance of silicon gel.The resultsof this paperoffered a method forimproving the silicon gel adsorbents and applying them in pressure swing adsorptive(PSA) process of removing CO2 from synthesis gas.
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