The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 1978
Filed:
Oct. 22, 1975
Applicant:
Inventor:
Ernst Jorn, Lyngby, DK;
Assignee:
Haldor Topsoe A/S, Soborg, DK;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ; 2604 / ; 4818 / ;
Abstract
Hydrogen and carbon oxides are reacted to form methane by passing an inlet stream of preheated methanation synthesis gas together with a recycle stream of product gas through a catalyst bed in an adiabatic methanation reactor. The inlet temperature is between 250.degree. and 350.degree. C, the outlet temperature between 500.degree. and 700.degree. C. The recycle stream is withdrawn from the outlet stream after the latter has been cooled to a temperature between 250.degree. and 350.degree. C and being, however, at least 50.degree. C above the dew point. A preferred means for withdrawing the recycle stream is an ejector driven by the inlet stream or by added steam.