Adsorption equilibrium of CO2,CH4 and N2 on zeolite 13X-APG

KONG Xiangming; YANG Ying; SHEN Wenlong; LI Ping; YU Jianguo

doi:10.3969/j.issn.0438-1157.2013.06.030

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Adsorption equilibrium of CO₂,CH₄ and N₂ on zeolite 13X-APG

更新时间：2025-12-10

- Adsorption equilibrium of CO₂,CH₄ and N₂ on zeolite 13X-APG
- CIESC Journal Issue 6, Pages: 2117-2124(2013)
- 作者机构：
  
  华东理工大学化学工程联合国家重点实验室,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.06.030
  CLC： Q021
- Online First：05 June 2013，
  
  Published：05 June 2013
- 稿件说明：
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KONG Xiangming, YANG Ying, SHEN Wenlong, et al. Adsorption equilibrium of CO₂,CH₄ and N₂ on zeolite 13X-APG[J]. CIESC Journal, 2013, (6): 2117-2124. DOI: 10.3969/j.issn.0438-1157.2013.06.030.
DOI：

KONG Xiangming, YANG Ying, SHEN Wenlong, et al. Adsorption equilibrium of CO₂,CH₄ and N₂ on zeolite 13X-APG[J]. CIESC Journal, 2013, (6): 2117-2124. DOI: 10.3969/j.issn.0438-1157.2013.06.030. DOI：

摘要

采用磁悬浮热天平测量了CO2、CH4与N2在沸石13X-APG上的吸附等温线

温度为293、303、333和363 K

压力为0～500 kPa。对吸附平衡实验数据采用multi-site Langmuir模型和Sips模型进行拟合

均得到良好的拟合效果

非线性回归得到吸附热等模型参数

可为变压吸附工艺过程的开发提供基础热力学数据。将沸石13X-APG吸附分离性能与文献中报道的吸附材料(如沸石分子筛、活性炭、金属有机骨架材料和介孔硅分子筛)性能相比较。通过比较CO2、CH4与N2吸附容量以及相对分离系数

探讨CO2/CH4(垃圾填埋气或者CO2强化煤层甲烷回收气)体系、CO2/N2(燃煤电厂、水泥厂以及焦炭厂烟道气)体系以及CH4/N2(煤层气)体系吸附分离的高效材料

为未来二氧化碳吸附捕集和甲烷吸附回收提供基础数据。

Abstract

Adsorption equilibrium isotherms of CO2

CH4 and N2 on zeolite 13X-APG were measured by Rubotherm magnetic suspension balance in the pressure range of 0—500 kPa at temperatures of 293

303

333 and 363 K.The multi-site Langmuir model and Sips model were used to fit the experimental data

and the model parameters were obtained by the non-linear regression.Furthermore

the adsorption capacities of CO2

CH4 and N2

as well as the separation factors of CO2/CH4

CO2/N2 and CH4/N2 gas mixtures on zeolite 13X-APG were compared with those on other materials reported in literature

including zeolites

activated carbon

mesoporous silica and metal-organic frameworks.The evaluation is given on the feasibility and efficiency of adsorption using 13X-APG as adsorbent to capture CH4 from both landfill gases and CO2 enhanced coal bed gases (CO2/CH4)

to capture CO2 from flue gases of coal-fired power plants

cement plants and coking plants (CO2/N2)

and to concentrate CH4 from coal mine gases (CH4/N2).

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