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:
Dec. 09, 2025
Filed:
Dec. 06, 2024
Decarbon Technology (Shenzhen) Co., Ltd., Guangdong, CN;
Feng Yan, Guangdong, CN;
Zuotai Zhang, Guangdong, CN;
Heijin Chen, Guangdong, CN;
Jiyun Xu, Guangdong, CN;
DECARBON TECHNOLOGY (SHENZHEN) CO., LTD., Shenzhen, CN;
Abstract
The present disclosure a solid amine adsorbent and its preparation method and application. The solid amine adsorbent consists of modified organic amines and a porous nano support, with the proportion of secondary amines in the modified organic amines being 70% or higher. The preparation method of the modified organic amines includes the following steps: S1: Mixing the organic amine and the organic amine modifying agent into an acetonitrile solvent and stirring to achieve uniform mixing; S2: Adding a crosslinking agent to the solution and stirring; S3: Gradually adding acetic acid to the solution during stirring to adjust the pH to neutral, then continuing to stir; S4: Using a rotary evaporator to evaporate the solvent at 90-110° C. until completely removed, resulting in the modified organic amine. The modified solid amine adsorbent produced by the present disclosure maintains high stability during cyclic adsorption and desorption processes while also ensuring excellent capacity.