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. 14, 2026
Filed:
Jun. 09, 2021
Decarbon Technology (Shenzhen) Co., Ltd, Shenzhen, CN;
Zuotai Zhang, Shenzhen, CN;
Xuehua Shen, Shenzhen, CN;
Feng Yan, Shenzhen, CN;
Chunyan Li, Shenzhen, CN;
Fan Qu, Shenzhen, CN;
DeCarbon Technology (Shenzhen) Co., Ltd., Shenzhen, CN;
Abstract
A method for preparing a solid amine adsorbent of COincludes introducing a gas mixture containing 10 vol. % to 50 vol. % of COis introduced into a sodium aluminate solution having a concentration in a range of 10 g/L to 100 g/L at room temperature to obtain a reaction solution. This occurs continuously until a pH value of the reaction solution is lowered to 9.5 to 9.8 to obtain a product solution containing a precipitate. The precipitate is filtered and washed. The filtered and washed precipitate is mixed with an organic alcohol at a mass ratio of 1:5 to 1:30 to obtain a suspension. The suspension is heated to an azeotropic point of water and the organic alcohol, and evaporated, boiled, and refluxed to obtain pore-enlarged pseudo boehmite. This is calcined to obtain aluminum oxide powder. The aluminum oxide powder is impregnated in an organic amine solution and dried.