Separation of Methane and Carbon Dioxide Gas Mixtures Using Activated Carbon Modified with 2-Methylimidazole

被引：8

作者：

Zhang, Xiao-Xin ^{[1
]}

Xiao, Peng ^{[2
]}

Chen, Guang-Jin ^{[2
]}

Sun, Chang-Yu ^{[2
]}

Yang, Lan-Ying ^{[2
]}

机构：

[1] Liaoning Shihua Univ, Coll Chem Chem Engn & Environm Engn, Fushun 113001, Peoples R China

[2] China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2018年 / 41卷 / 09期

关键词：

Absorption; Adsorption; CH4+CO2 gas mixture; 2-Methylimidazole; Modified activated carbon; Separation; IMIDAZOLATE FRAMEWORK ZIF-8; METAL-ORGANIC FRAMEWORKS; IONIC LIQUID; ADSORPTION SEPARATION; CO2; ADSORPTION; CAPTURE; CH4; PARAMETERS; VISCOSITY; TRANSPORT;

D O I：

10.1002/ceat.201700402

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Activated carbon was modified by loading 2-methylimidazole (mIm), ethanol, and glycol onto its surface and adopted to capture CO2 using the absorption-adsorption method. The modified activated carbon showed high selectivity for separating CH4+CO2 gas mixtures, compared with other methods to modify activated carbon given in the literature. The separation factor was 4.75 times higher than that for the fresh activated-carbon system, and the separation performance of the activated carbon increased with increasing amount of mIm. The addition of glycol showed greater potential to enhance the selectivity of the activated carbon than ethanol. A recycling test verified the stability of the modified activated carbon for CH4+CO2 gas mixture separation.

引用

页码：1818 / 1825

页数：8

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