Adsorption and desorption on coals for CO_2 sequestration

作     者：WANG Zuo-tang FU Zhen-kun ZHANG Bang-an WANG Guo-xiong RUDOLPH Victor HUO Li-wen 

作者机构：State Key Laboratory of Coal Resources and Mine Safety China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China School of Mines China University of Mining ＆ Technology Xuzhou Jiangsu 221116 China College of Zijin Mining Fuzhou University Fuzhou Fujian 350108 China Chongqing Zhongliangshan Coal-Electricity-Gas Co. Ltd. Chongqing 400052 China School of Engineering University of Queensland Qld 4072 Australia Beijing Zhelong Mining Science and Technology Co. Ltd. Beijing 100036 China 

出 版 物：《Mining Science and Technology》 (矿业科学技术（英文版）)

年 卷 期：2009年第19卷第1期

页      面：8-13页

核心收录：

学科分类：0808[工学-电气工程] 0709[理学-地质学] 0819[工学-矿业工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 081903[工学-安全技术及工程] 08[工学] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0813[工学-建筑学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：Projects 02019 supported by the Key Project of Chinese Ministry of Education ARC by the Australian Research Council, 40730422 2006AA06Z231 by the National Natural Science Foundation of China and Special Foundation of Cooperation NSFC-ARC 08010202058 by the Anhui Province Key Project 

主　　题：multi-component CO2 sequestration greenhouse gas 

摘      要：Adsorption and desorption of carbon dioxide, methane and other gases on coals has been investigated experimentally using representative Zhongliangshan coals. Gas adsorption is one of the major concerns for both CO2 sequestration and methane recovery processes. The experiments were carried out using both single and multi-component mixtures at 25 ℃ and 30 ℃ with the highest pressure of 12 MPa. The coal was under moisture equilibrated conditions. This provides experimental data from which a predictive assessment of CO2 sequestration and/or methane recovery can be conducted. The results show that for pure gasses the CH4 adsorption capacity is higher than the N2 adsorption capacity but lower than the CO2 adsorption capacity. Injection of CO2 or other gases into the coal significantly affects CH4 desorption. This allows the enhancement of CH4 recovery from the coals, thus supplying more clean energy while sequestering significant amounts of CO2 thereby reducing the greenhouse effect from human beings.