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:
Aug. 25, 1987
Filed:
Feb. 18, 1986
E Webb Henderson, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
A process of separating ash and char and the partial combustion formation fo carbon black from coal wherein coal, fuel and air are introduced at the top of a down draft slagging combustor operating above the melting point of ash so that molten ash aggregates in the combustor and precipitates to the bottom of the combustor. After the molten ash as been precipitated, the remaining carbon black, flue gas and char are conveyed to a char removal chamber where char falls from the flue gas and carbon black. This carbon black and flue gas are then conventionally separated. Oxygen is added to maintain the temperature of the combustor for a sufficient time for the molten ash to aggregate and precipitate. Additionally, a flux such as calcium carbonate can be added to reduce the melting point of the ash.