吸附罐空隙率对天然气脱CO2性能的影响

doi:10.16085/j.issn.1000-6613.2017.02.005

化工进展 ›› 2017, Vol. 36 ›› Issue (02): 435-441.DOI: 10.16085/j.issn.1000-6613.2017.02.005

吸附罐空隙率对天然气脱CO₂性能的影响

陈树军, 陶致成, 付越, 朱敏, 李文亮, 黄毅雄

中国石油大学(华东)储运与建筑工程学院, 山东青岛 266580

收稿日期:2016-06-14 修回日期:2016-07-19 出版日期:2017-02-05 发布日期:2017-02-05
通讯作者: 陈树军(1978-),男,副教授,硕士生导师,主要从事气体吸附和天然气开采方向的教学和科研工作。E-mail:shujunchenfu@126.com。
作者简介:陈树军(1978-),男,副教授,硕士生导师,主要从事气体吸附和天然气开采方向的教学和科研工作。E-mail:shujunchenfu@126.com。
基金资助:
国家自然科学基金（51306210，51304233）和大学生创新创业训练计划（20141168）项目。

Effect of adsorption column porosity on removing CO₂ from natural gas

CHEN Shujun, TAO Zhicheng, FU Yue, ZHU Min, LI Wenliang, HUANG Yixiong

College of Pipeline and Civil Engineering,, China University of Petroleum(East China), Qingdao 266580, Shandong, China

Received:2016-06-14 Revised:2016-07-19 Online:2017-02-05 Published:2017-02-05

摘要/Abstract

摘要： 为了研究海上天然气脱CO₂时因摇摆导致吸附罐空隙率变化对吸附净化效果的影响，搭建吸附实验台，利用实验数据，建立二维吸附净化模型，并验证了模型的有效性。结果表明：不流动吸附状态下，随着吸附罐空隙率的增加，吸附罐出口处的甲烷摩尔分数呈现上升趋势，且摩尔分数大于99%。同时空隙率范围在0.25~0.5之间，吸附罐内的吸附热随着空隙率的增大呈现上升趋势；流动吸附时，随着空隙率的增大，吸附罐内压降呈现下降趋势且下降剧烈。吸附罐空隙率为0.35时，吸附净化效果最佳。吸附罐内沿轴线方向吸附热呈现下降趋势，并且吸附罐空隙率越小，吸附热沿轴线方向下降越剧烈。本文的研究结果有助于海上天然气的开采，对天然气的快速发展具有十分重要的意义。

关键词: 吸附罐, 空隙率, 多孔介质, 吸附净化模型, 天然气

Abstract: The porosity of adsorption column was changed due to the swing motion of the boat for the offshore natural gas production. To study the effect of adsorption column porosity on adsorption purification, an adsorption experimental apparatus was built. A two-dimensional adsorption purification model was established based on the experiment data, and the validity of the model was confirmed. Result shows that the mass fraction of CH₄ at the exit of adsorption column rose to more than 0.99 mole fraction with the increase of adsorption column porosity at the static state. The adsorption heat in the adsorption column rose with the increase of adsorption column porosity. In the case of flowing adsorption, the pressure drop in the adsorption column decreased dramatically with the increase of adsorption column porosity. The best adsorption purification achieved when the adsorption column porosity was 0.35. Along the axis direction of the adsorption column, adsorption heat showed a downward trend, and decreased rapidly with the decrease of the adsorption column porosity. This study will help improve the production efficiency of offshore natural gas, and have a significant effect on the rapid development of natural gas.

Key words: adsorption column, porosity, porous media, adsorption purification model, natural gas

中图分类号:

TE53

陈树军, 陶致成, 付越, 朱敏, 李文亮, 黄毅雄. 吸附罐空隙率对天然气脱CO₂性能的影响[J]. 化工进展, 2017, 36(02): 435-441.

CHEN Shujun, TAO Zhicheng, FU Yue, ZHU Min, LI Wenliang, HUANG Yixiong. Effect of adsorption column porosity on removing CO₂ from natural gas[J]. Chemical Industry and Engineering Progree, 2017, 36(02): 435-441.

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吸附罐空隙率对天然气脱CO₂性能的影响

Effect of adsorption column porosity on removing CO₂ from natural gas

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