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. 25, 2022
Filed:
Jul. 18, 2020
Pingxiang Huaxing Environmental Protection Engineering Technology Co., Ltd, Pingxiang, CN;
Ping Ning, Pingxiang, CN;
Bo Li, Pingxiang, CN;
Chuan Wang, Pingxiang, CN;
Kai Li, Pingxiang, CN;
Xin Song, Pingxiang, CN;
Ruosong Xie, Pingxiang, CN;
Lijuan Jia, Pingxiang, CN;
Xia Wang, Pingxiang, CN;
Guangfei Qu, Pingxiang, CN;
Chan Li, Pingxiang, CN;
Other;
Abstract
The present invention refers to the field of flue gas purification, which discloses a method and apparatus for capturing carbon dioxide and producing sulfuric acid by sodium bisulfate; using a three-format electrodialysis apparatus to convert the desulfurized by-product NaHSOinto HSOwhile capturing COin the flue gas in the cathode chamber. Under the action of electric field drive and ion exchange membrane, HSOenters the anode chamber to generate HSOand is concentrated, and Naenters the cathode chamber to generate NaOH; the flue gas containing COto be treated is introduced from the cathode chamber and absorbed by NaOH. The invention provides a simple, green, and economic proceeding method to capture the carbon dioxide in the flue gas during the comprehensive utilization of sodium bisulfate solution, which is of better environmental benefits and improvement of the flue gas treatment technology and reducing the pressure of desulfurization gypsum treatment.