张贵泉,向小凤,孙雅萍,姚建涛,龙国军,晋中华,徐党旗

• 1:西安热工研究院有限公司
• 2:华能山东石岛湾核电有限公司

摘要(Abstract)：

以疏水型油性大孔吸附树脂为载体，利用不同分子量的聚乙烯亚胺（polyethyleneimine,PEI）修饰多孔材料，制备了疏水型树脂基固态胺吸附剂；通过N_2等温吸附-脱附、红外和热分析等仪器对其比表面积和孔结构、官能团结构、热失重特性等进行表征；探究了PEI负载量、空气湿度（30%～80%）、吸附时间和多次循环对吸附剂CO_2吸附性能的影响。研究表明：疏水型树脂基固态胺吸附剂对干空气（空气湿度低于50%）中CO_2具有良好的捕集性能，30%PEI改性的SD300树脂基固态胺吸附剂在大气环境下吸附1 h即可达到总吸附容量的90%以上，当PEI的分子量为1 800时吸附剂表现出较高的吸附容量和良好的吸脱附循环稳定性，这主要归因于较高的孔径尺寸及其出色的耐高温特性。

关键词(KeyWords)： 疏水型;树脂;固态胺;吸附剂;碳捕集

Abstract:

Keywords:

基金项目(Foundation): 陕西省重点研发计划（2023-YBSF-140）;; 西安热工院研发基金（TD-23-TYK01）~~

作者(Author): 张贵泉,向小凤,孙雅萍,姚建涛,龙国军,晋中华,徐党旗

DOI: 10.19666/j.rlfd.202505100

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