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:
Sep. 04, 2018
Filed:
Jul. 02, 2015
Lg Chem, Ltd., Seoul, KR;
Mi Kyung Kim, Daejeon, KR;
Jeong Seok Lee, Daejeon, KR;
Jae Ik Lee, Daejeon, KR;
Dae Hyeon Kim, Daejeon, KR;
Jong Ku Lee, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
Abstract
Provided is a method for recycling energy in process of butadiene preparation, which includes, in the process of preparing butadiene using oxidative dehydrogenation reaction, steps of: a) supplying part or all of a light gas discharged from a solvent absorption tower to a turbine to produce electricity; b) passing the light gas passed through the turbine through one or more device units provided with a heat exchanger; and c) feeding the light gas passed through the device units provided with the heat exchanger into a reactor, according to which more economical butadiene preparation process is provided, by reducing net energy value required in process of butadiene preparation using oxidative dehydrogenation reaction.