The feasibility of in situ geological sequestration of supercritical carbon dioxide coupled to underground coal gasification

被引：0
|
作者：
Schiffrin, David J. [1 ]
机构：
[1] Univ Liverpool, Dept Chem, Liverpool L69 7ZD, Merseyside, England
来源：
ENERGY & ENVIRONMENTAL SCIENCE | 2015年 / 8卷 / 08期
关键词：
POLYCYCLIC AROMATIC-HYDROCARBONS; ORGANIC CONTAMINANTS; VAPOR-PRESSURES; CO2; SOLUBILITY; CAPTURE; STORAGE; DENSITY; SOLIDS; FLUIDS;
D O I：
10.1039/c5ee01094b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Based on the thermophysical properties of supercritical carbon dioxide and available power plant engineering information, it is shown that the maximum achievable efficiency of carbon dioxide sequestration in underground cavities left after in situ coal gasification is approximately only 14%. Available evidence indicates that the claim that the syngas thus produced can be employed to synthesise "green" liquid fuels is over-optimistic. In addition, a brief analysis is presented of environmental issues relating to the potential contamination by carcinogenic polycyclic aromatic compounds dissolved by supercritical carbon dioxide. An estimate of the solubility of the carcinogenic compound benzo[a] pyrene based on molecular polarizability is presented.
引用
收藏
页码：2330 / 2340
页数：11
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