刘健,陈宝康,顾振宇,王乐乐,何川,雷嗣远,王思源,杨宇航,张庆文,朱磊,朱松鹤,陆晓林

• 1:西安热工研究院有限公司苏州分公司
• 2:华能上海石洞口第二电厂

摘要(Abstract)：

为探讨固体颗粒在促进富液CO_2解吸过程中的强化传质传热作用和催化作用的主导地位及作用机制，选取纳米二氧化钛（TiO_2）和分子筛（HZSM-5）作为代表性颗粒，分别代表具有强化传热传质作用和化学催化作用的2种典型颗粒。通过搭建连续搅拌反应器，定义添加颗粒和未添加颗粒条件下富液CO_2解吸速率之比为解吸增强因子，系统调节颗粒质量分数、颗粒粒径、搅拌转速、富液CO_2负载量和吸收剂种类等因素，研究TiO_2和HZSM-5颗粒对富液解吸CO_2强化作用的影响。结果表明：HZSM-5颗粒相比TiO_2具有更高的解吸增强因子，主要归因于HZSM-5颗粒具有更大微孔表面积和Br?nsted酸位点耦合参数，且Ti O_2的解吸增强因子受操作条件变化的影响较小，在1.00～1.20范围内波动；相比之下，提高颗粒的质量分数和富液CO_2负载均能显著提升HZSM-5的解吸强化效果，解吸增强因子最高可达2.25；通过拟合富液中HCO_3~-浓度与HZSM-5解吸增强因子的关系，发现两者呈线性相关，表明HZSM-5颗粒通过强化与HCO_3~-相关的反应路径从而促进CO_2的解吸过程，这一发现为进一步优化固体颗粒的设计和提升富液CO_2解吸效率提供了理论依据。

关键词(KeyWords)： CO_2解吸;TiO_2;HZSM-5;解吸增强因子;HCO_3~-

Abstract:

Keywords:

基金项目(Foundation): 西安热工研究院有限公司发展基金项目（GU-24-TYK16）;; 国家重点研发计划项目（2023YFB410400）~~

作者(Author): 刘健,陈宝康,顾振宇,王乐乐,何川,雷嗣远,王思源,杨宇航,张庆文,朱磊,朱松鹤,陆晓林

DOI: 10.19666/j.rlfd.202412269

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