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:
Jul. 17, 2018
Filed:
Feb. 08, 2018
Applicant:
Nova Chemicals (International) S.a., Fribourg, CH;
Inventors:
Grazyna Petela, Calgary, CA;
Leslie Wilfred Benum, Red Deer, CA;
Edward Christopher Foy, Calgary, CA;
Assignee:
NOVA Chemicals (International) S.A., Fribourg, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 19/00 (2006.01); F28F 1/14 (2006.01); B01J 19/24 (2006.01); C07C 4/04 (2006.01); F28F 1/24 (2006.01); F28F 21/08 (2006.01); C10G 9/20 (2006.01); B01J 19/02 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
B01J 19/2415 (2013.01); B01J 19/00 (2013.01); B01J 19/006 (2013.01); B01J 19/0013 (2013.01); B01J 19/02 (2013.01); C07C 4/04 (2013.01); C10G 9/20 (2013.01); C10G 9/203 (2013.01); F28F 1/14 (2013.01); F28F 1/24 (2013.01); F28F 21/083 (2013.01); B01J 2219/00076 (2013.01); B01J 2219/00157 (2013.01); B01J 2219/0286 (2013.01); B01J 2219/24 (2013.01); C10G 2300/1044 (2013.01); C10G 2300/1081 (2013.01); C10G 2300/4043 (2013.01); F28D 2021/0022 (2013.01);
Abstract
The present invention provides low profile, thick ('stubby') longitudinal fins having a cross section which is a parallelogram, trapezoid or a triangle extending from 10% to 100% of a coil pass and comprising from 3 to 45 weight % of a coil in a radiant section of a furnace for thermally cracking one or more of paraffins and naphtha. The fins provide an additional surface through which heat may be transferred to the coil making the coil more efficient reducing greenhouse emissions.