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Title: Methanation process utilizing split cold gas recycle

Abstract

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.

Inventors:
 [1];  [2];  [3];  [4]
  1. Evanston, IL
  2. Lincolnwood, IL
  3. (Palatine, IL)
  4. Rye, NY
Issue Date:
OSTI Identifier:
862586
Patent Number(s):
3967936
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10K - PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
DOE Contract Number:  
OCR1175
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
methanation; process; utilizing; split; cold; gas; recycle; feed; comprising; carbon; monoxide; hydrogen; multiple; stages; hot; product; mixed; proportions; mixture; temperature; sufficiently; avoid; carbonyl; formation; initiate; reaction; complete; excessive; adiabatic; reached; catalyst; damage; temperatures; avoided; utilizes; extraordinarily; ratios; minimum; investment; operating; costs; multiple stage; hot product; comprising carbon; product gas; carbon monoxide; temperature sufficient; feed gas; gas comprising; cold gas; process utilizing; recycle gas; temperature sufficiently; operating costs; adiabatic temperature; methanation process; multiple stages; gas recycle; /48/518/

Citation Formats

Tajbl, Daniel G, Lee, Bernard S, Schora, Jr., Frank C., and Lam, Henry W. Methanation process utilizing split cold gas recycle. United States: N. p., 1976. Web.
Tajbl, Daniel G, Lee, Bernard S, Schora, Jr., Frank C., & Lam, Henry W. Methanation process utilizing split cold gas recycle. United States.
Tajbl, Daniel G, Lee, Bernard S, Schora, Jr., Frank C., and Lam, Henry W. Tue . "Methanation process utilizing split cold gas recycle". United States. https://www.osti.gov/servlets/purl/862586.
@article{osti_862586,
title = {Methanation process utilizing split cold gas recycle},
author = {Tajbl, Daniel G and Lee, Bernard S and Schora, Jr., Frank C. and Lam, Henry W},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {7}
}

Patent:

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