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. 15, 1976
Filed:
Nov. 11, 1974
Dorrance P Bunn, Jr, Houston, TX (US);
H Blandin Jones, Houston, TX (US);
Texaco Inc., New York, N.Y., US;
Abstract
A fluidized catalytic cracking process wherein the reaction zone comprises one or more riser reaction conduits discharging into a reaction vessel. Hydrocarbon vapors and catalyst discharging from the risers separate to form a dense phase fluidized catalyst bed and a hydrocarbon vapor phase within the reaction vessel. A selected weight inventory of catalyst is maintained in the reaction vessel dense phase catalyst bed by valve means responsive to the weight of catalyst. Conversion of hydrocarbon in the reaction vessel may be increased by reducing the dense phase catalyst bed bulk density and consequently increasing contact of catalyst with hydrocarbon vapor within the reaction vessel.