Combined system and process for producing electric-substituted natural gas based on coal gasification and methanation |
Title： |
| Combined system and process for producing electric-substituted natural gas based on coal gasification and methanation |
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Application Number： |
200710117724 |
Application Date： |
2007/06/22 |
Announcement Date： |
2007/11/21 |
Pub. Date： |
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Publication Number： |
101074397 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
C10J 3/46C10J 3/86C10K 1/00C10K 3/00F22B 33/18 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Li Zheng, Wang Minghua |
Key Words： |
coal gasification, methanation, electric-substituted, natural gas, Combined system |
Abstract： |
An electric-substituting natural gas combined system and process based on coal gasification and methanation are disclosed. The process is carried out by delivering oxygen, powdered coal or water-gas slurry into gasified apparatus, recovering for crude gasified gas by wet heat, delivering into sulfur-resisting carbon monoxide carbon reactor, adjusting hydrogen-carbon ratio, entering into desulfurizing decarbonizer, recovering elementary sulfur while enriching carbon dioxide, delivering synthetic gas into methane reactor to generate substituted natural gas as domestic gas partially, entering into gas and steam combined circulator partially, and entering into substituted natural gas storage tank partially. It integrates coal gasified, methanation and gas steam combined circulation together, it's efficient and clean, has better utilizing rate, no CO2 discharge and need for changing gas turbine or load. |
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 Relevancy information |
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| Last Update |
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2008-4-17 |
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Selected patents owned by Tsinghua University filed in 2005 are loaded. |
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2008-3-31 |
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Selected patents owned by Tsinghua University filed in 2006 and 2007 are load. |
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