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:
Jan. 07, 2014
Filed:
Oct. 28, 2011
Sang Hyup Lee, Gyeonggi-do, KR;
Hyun Jung Lee, Seoul, KR;
Joong Kee Lee, Seoul, KR;
Joo Man Woo, Seoul, KR;
Min Woo Lee, Seoul, KR;
Han Byul Kim, Incheon, KR;
Sang Hyup Lee, Gyeonggi-do, KR;
Hyun Jung Lee, Seoul, KR;
Joong Kee Lee, Seoul, KR;
Joo Man Woo, Seoul, KR;
Min Woo Lee, Seoul, KR;
Han Byul Kim, Incheon, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
An apparatus and a method for recovery of sulfur hexafluoride is provided. Sulfur hexafluoride (SF) may be separated with high-concentration and improved recovery ratio through a multi-stage separation and recovery processes using a plurality of separation membrane modules, and as well, SFgas may be concentrated to maximize the SFrecovery ratio before the separation and recovery processes through the separation membrane modules. Furthermore, sulfur dioxide (SO) and moisture included in the SFwaste gas may be removed effectively so as to extend the service life of the separation membrane modules.