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Environmental benefits of underground coal gasification
Authors:Liu Shu-qin  Liu Jun-hua  Yu Li
Institution:China University of Mining & Technology, Beijing 100083, China
Abstract:Environmental benefits of underground coal gasification are evaluated. The results showed that through underground coal gasification, gangue discharge is eliminated, sulfur emission is reduced, and the amount of ash, mercury, and tar discharge are decreased. Moreover, effect of underground gasification on underground water is analyzed and CO 2 disposal method is put forward.
Keywords:environmental benefits  coal  underground coal gasification
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