Production of substitute natural gas. [synthesis from carbon monoxide and hydrogen]

Patent · Tue Jan 09 04:00:00 EST 1979

OSTI ID:6454806

Stroud, H J.F.; Tart, K R

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
• Country of Publication: United States
• Language: English

Related Subjects

090221* -- Alcohol Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
CONTROL
ENERGY SOURCES
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HIGH BTU GAS
HIGH TEMPERATURE
METHANATION
OXIDES
OXYGEN COMPOUNDS
REMOVAL
SYNTHESIS
TEMPERATURE CONTROL
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION