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:
Nov. 07, 2006
Filed:
Dec. 08, 2005
Donghyun JO, Daejeon, KR;
Jongwook Bae, Daejeon, KR;
Juyoul Kim, Hwaseong, KR;
Sung Won Kim, Daejeon, KR;
Byungchul OH, Daejeon, KR;
Seung Back Ha, Hanam, KR;
Donghyun Jo, Daejeon, KR;
Jongwook Bae, Daejeon, KR;
Juyoul Kim, Hwaseong, KR;
Sung Won Kim, Daejeon, KR;
Byungchul Oh, Daejeon, KR;
Seung Back Ha, Hanam, KR;
LC Chem, Ltd., , KR;
Abstract
Provided is a method of inhibiting the formation of coke in an ethylene dichloride to vinyl chloride monomer pyrolysis cracker. The coke formation, which occurs during an ethylene dichloride pyrolysis reaction, is inhibited by contacting a heat-transfer surface of the cracker and a boron compound. The amount of coke generated when a coke formation-inhibiting material is used is 50% or less of that when a coke formation-inhibiting material is not used. In this case, however, the ethylene chloride conversion and the selectivity to a vinyl chloride monomer during the pyrolysis reaction are not affected. Accordingly, the efficiency of the pyrolysis cracker can be maximized.