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:
Nov. 28, 1978
Filed:
Nov. 02, 1977
William B Watson, Pittsburgh, PA (US);
Richard G Winter, Ponca City, OK (US);
Geoffrey Twizell, Middlesex, GB;
Conoco Methanation Company, Stamford, CT (US);
Abstract
A start-up method for a methanation process wherein a plurality of catalyst beds are used. The method comprises heating a first catalyst bed to a suitable temperature and thereafter charging a synthesis gas in mixture with an inert diluent to the first catalyst bed. The product stream from the first catalyst bed contains an excess of hydrogen and is passed to a second catalyst bed thereby heating the second catalyst bed. At least a portion of the product stream from the first catalyst bed is recycled to form the inert diluent used with the synthesis gas stream passed to the first catalyst bed.