Production of substitute natural gas. [synthesis from carbon monoxide and hydrogen]
Synthesis gases containing carbon monoxide, e.g., above 40% volume, and hydrogen are methanated to produce substitute natural gas, after CO/sub 2/ removal, wherein the synthesis gas is simultaneously saturated with water, further heated and divided into first and second feed gas streams. The first feed gas stream is catalytically methanated at a temperature of from 250 to 550/sup 0/C, and the reaction product mixed with said second feed gas stream. The mixture is methanated over a second catalyst at a temperature of from 250 to 550/sup 0/C and the product is divided into a second product gas stream and a recycle gas stream and the recycle gas stream is admixed with the first feed gas stream, prior to the first catalytic methanation. The second product gas stream is subjected to a carbon dioxide removal process to produce SNG.
- Assignee:
- British Gas Corp.
- Patent Number(s):
- US 4133825
- OSTI ID:
- 6454806
- Resource Relation:
- Patent Priority Date: Priority date 21 May 1976, United Kingdom of Great Britain and Northern Ireland (UK)
- Country of Publication:
- United States
- Language:
- English
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Process for the production of a substitute natural gas. [catalytic production from methanol]
Combined process for coal pyrolysis and char gasification
Related Subjects
CARBON MONOXIDE
METHANATION
HIGH BTU GAS
SYNTHESIS
CARBON DIOXIDE
CATALYSIS
HIGH TEMPERATURE
REMOVAL
TEMPERATURE CONTROL
WASTE HEAT UTILIZATION
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
ENERGY SOURCES
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
OXIDES
OXYGEN COMPOUNDS
WASTE PRODUCT UTILIZATION
090221* - Alcohol Fuels- Chemical Synthesis- (1976-1989)