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:
Jul. 19, 1988
Filed:
Nov. 18, 1986
Bruno Hillinger, Hinterbruhl, AT;
Georg Beckmann, Vienna, AT;
Waagner-Biro A.G., , AT;
Abstract
Method for gasifying carbonaceous fine-grained or sludgy material, such as powdered brown coal or biomass, in fixed bed reactors. Carbonaceous material to be gasified is pre-heated and dried, and mixed with coarse-grained, non-carbonaceous ballast material. This mixing is carried out prior to, during or after the pre-heating and drying of the carbonaceous material, to thereby obtain a pre-heated and dried mixture of the carbonaceous material and the ballast material, and to also obtain vapor from the pre-heating and drying of the same. The heated and dried mixture is contacted with a gasification medium within a fixed bed reactor, at a temperature sufficiently high to gasify the carbonaceous material. The gasification medium includes the vapor from the pre-heating and drying of the carbonaceous material. The ballast material provides sufficient gas permeability to the fine-grained or sludgy carbonaceous material, to permit gasification thereof in the fixed bed reactor.