Methanation process utilizing split cold gas recycle

Patent · 06 July 1976

OSTI ID:862586

Tajbl, Daniel G ^[1]; Lee, Bernard S ^[2]; Lam, Henry W ^[3]

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1. Evanston, IL
2. Lincolnwood, IL
3. Rye, NY

In the methanation of feed gas comprising carbon monoxide and hydrogen in multiple stages, the feed gas, cold recycle gas and hot product gas is mixed in such proportions that the mixture is at a temperature sufficiently high to avoid carbonyl formation and to initiate the reaction and, so that upon complete reaction of the carbon monoxide and hydrogen, an excessive adiabatic temperature will not be reached. Catalyst damage by high or low temperatures is thereby avoided with a process that utilizes extraordinarily low recycle ratios and a minimum of investment in operating costs.

• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 3967936
• OSTI ID: 862586
• Country of Publication: United States
• Language: English

Related Subjects

/48/518/
adiabatic
adiabatic temperature
avoid
avoided
carbon
carbon monoxide
carbonyl
catalyst
cold
cold gas
complete
comprising
comprising carbon
costs
damage
excessive
extraordinarily
feed
feed gas
formation
gas
gas comprising
gas recycle
hot
hot product
hydrogen
initiate
investment
methanation
methanation process
minimum
mixed
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monoxide
multiple
multiple stage
multiple stages
operating
operating costs
process
process utilizing
product
product gas
proportions
ratios
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reaction
recycle
recycle gas
split
stages
sufficiently
temperature
temperature sufficient
temperature sufficiently
temperatures
utilizes
utilizing