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. 19, 2021
Filed:
Mar. 15, 2018
Applicant:
Nova Chemicals (International) S.a., Fribourg, CH;
Inventors:
Michael Koselek, Red Deer, CA;
Leslie Benum, Red Deer, CA;
Vasily Simanzhenkov, Calgary, CA;
Hany Farag, Calgary, CA;
Assignee:
NOVA Chemicals (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B 9/08 (2006.01); B01J 19/00 (2006.01); B01J 6/00 (2006.01); C10G 9/16 (2006.01); C10G 9/12 (2006.01); C10G 75/04 (2006.01); C10G 9/20 (2006.01); B01J 19/02 (2006.01);
U.S. Cl.
CPC ...
B08B 9/0865 (2013.01); B01J 6/008 (2013.01); B01J 19/0026 (2013.01); B01J 19/02 (2013.01); C10G 9/12 (2013.01); C10G 9/16 (2013.01); C10G 9/203 (2013.01); C10G 75/04 (2013.01); B01J 2219/00247 (2013.01); B01J 2219/0286 (2013.01); B08B 2209/08 (2013.01); C10G 2300/1096 (2013.01);
Abstract
In chemical processes for cracking hydrocarbons, reactors are subject to coking. This results in carburization of the metal substrate for the reactor leading to a reduced reactor life. If the reactor is subject to a decoke process, followed by a steam scour and nitriding there is a reduced tendency to carburization of the metal substrate improving the reactor life.