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:
Jun. 27, 1978
Filed:
Jul. 12, 1976
Joel Drexler McKinney, Pittsburgh, PA (US);
Raynor T Sebulsky, Pittsburgh, PA (US);
Francis Edmund Wynne, Jr, Allison Park, PA (US);
Gulf Research & Development Company, Pittsburgh, PA (US);
Abstract
In a thermal cracking process employing inert hot solids as a heat source, the cracker effluent solids are passed to a burner for combustion of deposited and entrained coke. The liquid product of the thermal cracking process is distilled and the liquid residue comprises a low value solids-containing slurry which is used as a torch oil in the coke burner. The liquid residue from a catalytic cracking process also comprises a low value slurry since it contains particles of cracking catalyst and in the present process is used as auxiliary torch oil in the solids burner. The catalyst particles are rendered inert at the high temperature of the burner, thereby enhancing the quantity of inert solids circulating in the thermal cracking process. The use of a second slurry as torch oil reduces the quantity of thermally cracked liquid residue required as torch oil and enhances the quantity of more valuable solids-free distillate liquid recoverable from the thermal cracking process.