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. 06, 1977
Filed:
Feb. 28, 1977
Friedrich-Wilhelm Moller, Friedrichsdorf, DT;
Karl Bratzler, Bad Homburg, DT;
Wolf-Dieter Muller, Nieder-Eschbach, DT;
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
A high methane gas which can be substituted for natural gas is produced from a primary gas made by the gasification of coal, tar, or heavy residual oil under superatmospheric pressures. The primary gas is purified to remove catalyst poisons and is scrubbed to remove carbon dioxide to a residual content below 2% by volume. The water vapor to carbon monoxide volume ratio of the scrubbed gas is adjusted to 0.55 : 1 to 1 : 1 and is then passed through a reaction zone containing a shift conversion catalyst and a methanation catalyst in a volume ratio of approximately 1 : 4 to 1 : 10. The scrubbed gas entering the reaction zone enters the reaction zone at a temperature of 300.degree.-500.degree. C.