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. 27, 1977
Filed:
Mar. 04, 1976
Applicant:
Inventor:
Paul Rudolph, Bad Homburg, DT;
Assignee:
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
55 50 ; 55228 ; 55 85 ;
Abstract
Gravity separation process for removing tar from water in a condensate formed by the cooling of a raw gas produced by the gasification or dry distillation of solid fuel such as coal. The tar and water condensate formed by cooling the raw gas to about 100.degree. C is enriched in a tar-water separator with ammonium carbonate to a concentration of least 5 grams NH.sub.3 per kg H.sub.2 O. The cooling can be carried out in a plurality of stages with the hotter condensate from at least one of the first cooling stages being mixed at a weight ratio of 10:1 to 1:2 with colder condensate from at least one of the succeeding cooling stages.