Wet methanation evaluation. Final report. Series No. I: E-2

Technical Report · Mon Oct 01 04:00:00 EDT 1973

DOI:https://doi.org/10.2172/7103021· OSTI ID:7103021

Tse, M. Y.

Part of the evaluation work on methanation processes is to identify those processes that show commercial promise and to recommend further development work where justified. In an initial review of methanation, the economics of three fixed bed processes were compared. These were the recycle, the cold quench and the combined recycle and cold quench. It was concluded that the recycle is the least attractive. The cold quench is about a stand-off with the combined process. In the present study, the economics of the combined process have been updated for use as a reference for comparison against wet methanation. The study shows that for an 80 MMSCFD gasification plant, wet methanation requires about $3,600,000 more capital investment and $620,000 per year more operating costs than the combined process. It was concluded that the addition of wet methanation to the research program is not justified at this time. It will be reconsidered if some particular circumstance develops which indicates an advantage for wet methanation which is not apparent at this stage of process development. The potential advantages of wet methanation over combined recycle and cold quench are that it is simpler to operate and less likely to deposit carbon.

• Research Organization: Braun (C.F.) and Co., Alhambra, CA (USA)
• OSTI ID: 7103021
• Report Number(s): FE-2240-14
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
CHEMICAL REACTIONS
COAL GASIFICATION
COMPARATIVE EVALUATIONS
DIAGRAMS
ECONOMICS
FLOWSHEETS
GASIFICATION
METHANATION
RECOMMENDATIONS
THERMOCHEMICAL PROCESSES