Title:
METHANE SYNTHETIC METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2016/119603
Kind Code:
A1
Abstract:
The present invention provides a methane synthetic method, used for synthesizing underground gasified crude gas into methane. The method comprises: step 1: gasifying an underground coal layer by using an underground gasification furnace to produce crude gas; step 2: removing impurities in the crude gas by using a crude gas pretreatment system; step 3: calculating a required removal quantity of CO2 in the crude gas and removing the corresponding quantity of CO2 by using a low-temperature methanol washing device according to the required removal quantity of CO2; and step 4: synthesizing the crude gas into methane by using a methanation device. According to the method for synthesizing crude gas into methanol and a methanol synthetic system in the present invention, carbon dioxide is absorbed by using a low-temperature methanol washing device, so that the content of carbon dioxide in the crude gas can be reduced, the composition of raw material gas for synthesizing the methanol is more stabilized, and the stable and safe methanol production using the methanation device can be ensured.
Inventors:
CHEN FENG (CN)
FU WEIXIAN (CN)
FU WEIXIAN (CN)
Application Number:
PCT/CN2016/071160
Publication Date:
August 04, 2016
Filing Date:
January 18, 2016
Export Citation:
Assignee:
ENN COAL GASIFICATION MINING CO LTD (CN)
International Classes:
C07C1/04; C07C1/12; C10L3/08; C01B3/52; C07C9/04
Foreign References:
| CN103711471A | 2014-04-09 | |||
| CN101775319A | 2010-07-14 | |||
| CN104649859A | 2015-05-27 | |||
| CN101550048A | 2009-10-07 |
Attorney, Agent or Firm:
BEIJING INDUSTRY AND INFORMATION UNION INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
北京工信联合知识产权代理事务所（普通合伙） (CN)
北京工信联合知识产权代理事务所（普通合伙） (CN)
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