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:
Jan. 03, 1978
Filed:
Mar. 04, 1977
Wilhelm Danguillier, Bochum, DT;
Wolfgang Grams, Wanne-Eickel, DT;
Dr. C. Otto & Comp. G.m.b.H., Bochum, DT;
Abstract
A process for gasification of pulverized or fine-grain coal is characterized by using a portion of the combustible gas generated at a temperature between 1500.degree. and 2200.degree. C in a slag bath generator as a gaseous agent that is mixed with the coal and then introduced under pressure into the slag bath generator. The portion of the combustible gas to be used for this purpose undergoes processing which includes extracting dust, cooling and drying before the gas is combined with the fuel. According to a different embodiment, the combustible gas produced in the generator is used in the reduction process by feeding the gas into a reduction shaft furnace. The top gas from the shaft furnace is processed by extracting dust, cooling, drying and normalizing the acidity of the top gas before the top gas is combined with fuel for introduction as a mixture into the slag bath generator.