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. 30, 2013
Filed:
Apr. 11, 2008
Jong-ho Park, Daejeon, KR;
Jong-nam Kim, Daejeon, KR;
Seong-jun Lee, Daejeon, KR;
Min-su Ko, Daejeon, KR;
Hee Tae Beum, Daejeon, KR;
Jongkee Park, 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;
Seong-Jun Lee, Daejeon, KR;
Min-Su Ko, Daejeon, KR;
Hee Tae Beum, Daejeon, KR;
Jongkee Park, 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 Energy Co., Ltd, Seoul, KR;
Abstract
The present invention relates to a hybrid process comprising an adsorption process and a distillation process for the separation of butene-1 from a C4 hydrocarbon mixture gas including butene-1, trans-2-butene, cis-2-butene, normal butane, isobutane, etc. The above hybrid process comprises introducing a gaseous C4 mixture into the adsorption tower loaded with adsorbents which adsorb olefins selectively to discharge C4 paraffins to the outlet of the tower, desorbing C4 olefins selectively adsorbed in the adsorption tower to produce high purity C4 olefins mixture gas in which isobutane and normal butane was removed, and separating the high C4 olefins mixture gas (a mixture of butene-1, trans-2-butene, cis-2-butene, and a trace amount of C4 paraffins) via distillation to obtain high purity butene-1 including a trace amount of isobutane in the top of the distillation tower and obtain a mixture gas including trans-2-butene, cis-2-butene and a trace amount of normal butane in the bottom of the tower.