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. 28, 2018
Filed:
Dec. 04, 2014
Sasol Technology Proprietary Limited, Johannesburg, ZA;
André Peter Steynberg, Randburg, ZA;
Darrell Duane Kinzler, Houston, TX (US);
SASOL TECHNOLOGY PROPRIETARY LIMITED, Johannesburg, ZA;
Abstract
A method is provided of shutting down an operating three-phase slurry bubble column reactor () having downwardly directed gas distribution nozzles () submerged in a slurry body () of solid particulate material suspended in a suspension liquid contained inside a reactor vessel (), with the gas distribution nozzles () being in flow communication with a gas feed line () through which gas is fed to the gas distribution nozzles () by means of which the gas is injected downwardly into the slurry body (). The method includes abruptly stopping flow of gas from the gas feed line () to the gas distribution nozzles () to trap gas in the gas distribution nozzles () thereby to inhibit slurry ingress upwardly into the gas distribution nozzles ().