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. 05, 1982
Filed:
Sep. 08, 1980
Stone P Washer, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
Cracking catalyst fines that are separated from the cracked fluid leaving the cracking or separation zone of a catalytic cracker are not dropped back into the separation zone or cracker and thus are not left in the cracker-regenerator loop but rather are removed from this loop, e.g., by connecting the dip-leg of one or more of the cyclones in the cracker with a conduit guiding these fines to a location of disposal outside of the catalyst loop. In one embodiment, these fines are introduced into another catalytic cracker or the separation vessel associated with a further catalytic cracker so that these fines ultimately occur in the bottoms product from a fractionator associated with this further cracker. By this process, the bottoms product of the main fractionator associated with the main cracker can be more efficiently utilized for the production of a carbon black feedstock because this bottoms product contains a very significantly reduced quantity of catalyst fines.