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:
Apr. 12, 1988
Filed:
Jan. 24, 1985
Applicant:
Inventor:
David L Rogers, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Co., Bartlesville, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; C09C / ;
U.S. Cl.
CPC ...
423450 ; 423449 ; 423D / ; 422109 ; 422150 ; 422156 ; 422158 ; 165 36 ; 165103 ; 165901 ; 165921 ;
Abstract
In a heat exchange unit that recovers waste heat from carbon black smoke by preheating oxygen-containing gas such as air being passed to a carbon black producing reactor, a control loop is provided that automatically diverts the oxygen-containing gas being preheated through a by-pass line if the temperature of the effluent smoke being removed from the heat exchange is below a minimum temperature value in order to minimize the deposition of carbon on the heat exchange surfaces in said heat exchange zone.