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:
Sep. 04, 1979
Filed:
Oct. 06, 1977
Hermann Staege, Essen, DE;
Krupp-Koppers GmbH, Essen, DE;
Abstract
Fine-grained solids including dust-like solids are introduced into a reaction space which is under pressure such as used in the gasifying of coal is effected by mixing carbon dioxide in the form of dry ice with the solids after the solids have been precooled to a temperature of -80.degree. C., then bringing the formed mixture of solids and dry ice up to the pressure required for introduction into the reaction space, thereafter subjecting the dry ice to sublimation to separate it from the solids and subsequently, after pressure release and cooling to the desublimation comparative, reconverting the gaseous carbon dioxide into dry ice which then is circulated into the next run while the solids are passed into the reaction space.