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Title: Process for producing methane from gas streams containing carbon monoxide and hydrogen

Abstract

Carbon monoxide-containing gas streams are passed over a catalyst capable of catalyzing the disproportionation of carbon monoxide so as to deposit a surface layer of active surface carbon on the catalyst essentially without formation of inactive coke thereon. The surface layer is contacted with steam and is thus converted to methane and CO.sub.2, from which a relatively pure methane product may be obtained. While carbon monoxide-containing gas streams having hydrogen or water present therein can be used only the carbon monoxide available after reaction with said hydrogen or water is decomposed to form said active surface carbon. Although hydrogen or water will be converted, partially or completely, to methane that can be utilized in a combustion zone to generate heat for steam production or other energy recovery purposes, said hydrogen is selectively removed from a CO--H.sub.2 -containing feed stream by partial oxidation thereof prior to disproportionation of the CO content of said stream.

Inventors:
 [1]
  1. (Congers, NY)
Publication Date:
Research Org.:
UNION CARBIDE CORP
OSTI Identifier:
863756
Patent Number(s):
US 4242105
Assignee:
Union Carbide Corporation (New York, NY) OSTI
DOE Contract Number:  
AC03-78CS40177
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
process; producing; methane; gas; streams; containing; carbon; monoxide; hydrogen; monoxide-containing; passed; catalyst; capable; catalyzing; disproportionation; deposit; surface; layer; active; essentially; formation; inactive; coke; thereon; contacted; steam; converted; relatively; pure; product; obtained; water; therein; available; reaction; decomposed; form; partially; completely; utilized; combustion; zone; generate; heat; production; energy; recovery; purposes; selectively; removed; co-h; -containing; feed; stream; partial; oxidation; prior; content; streams containing; carbon monoxide-containing; relatively pure; partial oxidation; combustion zone; carbon monoxide; gas stream; feed stream; gas streams; surface layer; active surface; containing gas; energy recovery; containing carbon; surface carbon; selectively removed; monoxide-containing gas; catalyst capable; selectively remove; inactive coke; producing methane; methane product; oxide-containing gas; /48/423/518/585/

Citation Formats

Frost, Albert C. Process for producing methane from gas streams containing carbon monoxide and hydrogen. United States: N. p., 1980. Web.
Frost, Albert C. Process for producing methane from gas streams containing carbon monoxide and hydrogen. United States.
Frost, Albert C. Tue . "Process for producing methane from gas streams containing carbon monoxide and hydrogen". United States. https://www.osti.gov/servlets/purl/863756.
@article{osti_863756,
title = {Process for producing methane from gas streams containing carbon monoxide and hydrogen},
author = {Frost, Albert C.},
abstractNote = {Carbon monoxide-containing gas streams are passed over a catalyst capable of catalyzing the disproportionation of carbon monoxide so as to deposit a surface layer of active surface carbon on the catalyst essentially without formation of inactive coke thereon. The surface layer is contacted with steam and is thus converted to methane and CO.sub.2, from which a relatively pure methane product may be obtained. While carbon monoxide-containing gas streams having hydrogen or water present therein can be used only the carbon monoxide available after reaction with said hydrogen or water is decomposed to form said active surface carbon. Although hydrogen or water will be converted, partially or completely, to methane that can be utilized in a combustion zone to generate heat for steam production or other energy recovery purposes, said hydrogen is selectively removed from a CO--H.sub.2 -containing feed stream by partial oxidation thereof prior to disproportionation of the CO content of said stream.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Patent:

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