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. 20, 1984
Filed:
Feb. 13, 1984
William T McShea, III, Martinsville, NJ (US);
Robert M Yarrington, Westfield, NJ (US);
Engelhard Corporation, Iselin, NJ (US);
Abstract
In coal gasification processes for the production of synthetic natural gas by the reaction of coal with steam and oxygen under pressure to form a gasifier synthesis gas and a liquid hydrocarbon by-product, the liquid hydrocarbon by-product is treated for solids and metal removal and is then passed to a catalytic partial oxidation zone containing a monolithic platinum-palladium catalyst. The hydrocarbon by-product liquids are converted to secondary synthesis gas by being reacted with steam and oxygen. Optionally, the effluent from the catalytic partial oxidation zone may be passed through a second, steam reforming catalyst to react residual hydrocarbons with water to produce hydrogen and carbon oxides. The gasifier and secondary synthesis gases may be treated to remove acid gases therefrom and then methanated to provide a product synthetic natural gas.