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. 28, 2015
Filed:
Feb. 10, 2010
Xionghui Wei, Beijing, CN;
Fang Han, Inner Mongolia, CN;
Jianbin Zhang, Beijing, CN;
Pengyan Zhang, Beijing, CN;
Daolong Gao, Jiangxi Province, CN;
Jinfei Wang, Beijing, CN;
Chuan Zou, Beijing, CN;
Chun HU, Beijing, CN;
Xionghui Wei, Beijing, CN;
Fang Han, Inner Mongolia, CN;
Jianbin Zhang, Beijing, CN;
Pengyan Zhang, Beijing, CN;
Daolong Gao, Jiangxi Province, CN;
Jinfei Wang, Beijing, CN;
Chuan Zou, Beijing, CN;
Chun Hu, Beijing, CN;
Beijing Boyuan-Hengsheng High-Technology Co., Ltd., Beijing, CN;
Yongfeng Boyuan Industry Co. Ltd., Yongfeng, Jiangxi Province, CN;
Peking University, Beijing, CN;
Abstract
A method for removing SO(x=2 and/or 3) from gas using a solution having polyethylene glycol as the main ingredient. First, SOin the gas is absorbed by the solution of polyethylene glycol. Second, the solution of polyethylene glycol which has absorbed SOis regenerated by one or more of the heating, vacuum, ultrasonic, microwave or radiation methods, thereby releasing the by-products of sulfur dioxide and sulfur trioxide. The regenerated solution of polyethylene glycol is recycled. When the water content of the regenerated solution of polyethylene glycol is high enough to affect the desulfurization, it needs to be removed. Removal methods include heating and rectification, absorption using a water absorbent, or a combination of these methods. The polyethylene glycol solution is recycled after dehydration.