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. 18, 1978
Filed:
Oct. 14, 1976
Applicant:
Inventors:
Tomizo Endo, Iwaki, JA;
Yutaka Sumida, Iwaki, JA;
Toru Kawahara, Iwaki, JA;
Masaichi Ohtake, Iwaki, JA;
Shoichi Motokawa, Iwaki, JA;
Keiji Nagayama, Iwaki, JA;
Masatomo Shigeta, Iwaki, JA;
Hiroshi Hozuma, Iwaki, JA;
Masaharu Tomizawa, Iwaki, JA;
Hideo Kikuchi, Iwaki, JA;
Assignees:
Kureha Kagaku Kogyo Kabushiki Kaisha, Tokyo, JA;
Chiyoda Chemical Engineering & Construction Co., Ltd., Yokohama, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; C10G / ;
U.S. Cl.
CPC ...
208 / ; 23284 ; 208 40 ; 208106 ; 208130 ;
Abstract
In a process for the thermal cracking of a heavy hydrocarbon in a cylindrical reactor, a portion of the content material in the reactor is taken out and injected back into the reactor according to a specific procedure to form a 'wet wall' or liquid curtain on the inner peripheral wall of the reactor, thereby preventing coking in the reactor.