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. 28, 2015
Filed:
Aug. 26, 2011
Jong Ho Park, Daejeon, KR;
Jong Nam Kim, Daejeon, KR;
Hee Tae Beum, Daejeon, KR;
Seong Jun Lee, Daejeon, KR;
Jang Jae Lee, Seongnam-si, KR;
Dong Wook Kim, Daejeon, KR;
Chang Hyun Ko, Daejeon, KR;
Sang Sup Han, Daejeon, KR;
Soon Haeng Cho, Daejeon, KR;
Jong Ho Park, Daejeon, KR;
Jong Nam Kim, Daejeon, KR;
Hee Tae Beum, Daejeon, KR;
Seong Jun Lee, Daejeon, KR;
Jang Jae Lee, Seongnam-si, KR;
Dong Wook Kim, Daejeon, KR;
Chang Hyun Ko, Daejeon, KR;
Sang Sup Han, Daejeon, KR;
Soon Haeng Cho, Daejeon, KR;
KOREA INSTITUTE OF ENERGY RESEARCH, Daejeon, KR;
SK INNOVATION CO., LTD., Seoul, KR;
Abstract
A method and apparatus for concentrating and recovering ethylene from the off-gas from an apparatus which produces gasoline, propylene and the like by fluidized catalytic cracking (FCC) of heavy oils such as atmospheric residue, generated in a crude oil refining process, is provided. The method and apparatus can reduce the amount of ethylene rinse in the subsequent ethylene displacement desorption process by increasing the ethylene purity of a raw material gas and reducing the concentration of weakly adsorbing components in the raw material gas and can reduce the loss of a desorbent during a distillation process for separating the desorbent from the weakly adsorbing components. Thus, ethylene can be recovered from the off-gas from fluidized catalytic cracking of heavy oils at high concentration and low cost.