Invention Grant
US08926931B2 Cost-effective catalyst for gasification of powder river basin coal
有权
粉尘流域煤气化成本效益好的催化剂
- Patent Title: Cost-effective catalyst for gasification of powder river basin coal
- Patent Title (中): 粉尘流域煤气化成本效益好的催化剂
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Application No.: US13566492Application Date: 2012-08-03
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Publication No.: US08926931B2Publication Date: 2015-01-06
- Inventor: Maohong Fan , Morris Argyle , Tiberiu Popa
- Applicant: Maohong Fan , Morris Argyle , Tiberiu Popa
- Agency: Patterson & Sheridan, LLP
- Main IPC: C01B31/18
- IPC: C01B31/18 ; C09K3/00 ; C10J3/00

Abstract:
The present invention generally relates to a catalytic gasification of coal. Catalytic gasification of a Wyodak low-sulfur sub-bituminous coal from the Powder River Basin of Wyoming was investigated using an inexpensive sodium carbonate catalyst applied via incipient wetness impregnation. Experiments in an atmospheric pressure fixed-bed laboratory gasifier were performed to evaluate the effects of reaction temperature, feed gas steam content, and Na2CO3 loading on the catalytic gasification of the Wyodak coal. The temperature range investigated (700-900° C.) was selected with consideration of the Na2CO3 melting point (850° C.) to reduce the loss by volatilization of sodium. Sodium was found to be active during both pyrolysis and gasification steps. The catalyst was most cost-effective at addition levels of approximately 3 wt %. The random pore model provided a good fit to the conversion versus time data collected under both the catalytic and the uncatalytic conditions.
Public/Granted literature
- US20130032761A1 COST-EFFECTIVE CATALYST FOR GASIFICATION OF POWDER RIVER BASIN COAL Public/Granted day:2013-02-07
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