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:
Oct. 24, 2017
Filed:
Sep. 04, 2014
Beijing Boyuan Hengsheng High-technology Co., Ltd, Beijing, CN;
Yongfeng Boyuan Industry Co. Ltd., Jiangxi Province, Ji'an, Jiangxi, CN;
Peking University, Beijing, CN;
Xionghui Wei, Beijing, CN;
Shaoyang Sun, Beijing, CN;
Meihua Zou, Beijing, CN;
Jianbai Xiao, Beijing, CN;
Lifang Li, Jiangxi, CN;
Li Chen, Jiangxi, CN;
Chun Hu, Beijing, CN;
Xiangbin Li, Jiangxi, CN;
Mingjin Wan, Jiangxi, CN;
BEIJING BOYUAN HENGSHENG HIGH-TECHNOLOGY CO., LTD, Beijing, CN;
YONGFENG BOYUAN INDUSTRY CO. LTD., JIANGXI PROVINCE, Ji'An, Jiangxi, CN;
PEKING UNIVERSITY, Beijing, CN;
Abstract
A method for removing SOfrom a gas by using a modified polyethylene glycol solution to absorb the SOin the gas. The modified polyethylene glycol solution is contacted with the gas containing SOto absorb the SOin the gas, wherein x=2 and/or 3, the modified polyethylene glycol is a product derived from etherifying hydroxyl groups in the molecules of ethylene glycol and/or polyethylene glycol and has a general formula: R—(O—CH)—O—R, where n is a positive integer, Rand Rare the same or different and are each independently alkyl, alkenyl, alkynyl, acyl or aryl.