石油化工2024，Vol.53Issue(12)：1733-1739,7.DOI:10.3969/j.issn.1000-8144.2024.12.006
赤泥基固态胺吸附剂吸附CO2性能研究
CO2 adsorption performance of solid amine adsorbents based on red mud
梁文俊 1张艳 1杨岚 1刘佳 1孙莉2
作者信息
- 1. 北京工业大学 区域大气复合污染防治北京市重点实验室,北京 100124
- 2. 北京市生态环境保护科学研究院,北京 100037
- 折叠
摘要
Abstract
Red mud(RM)as solid waste in the aluminum industry was used to prepare a low-cost RM-based solid amine adsorbent(TEPA-MRM)by using modified RM as a carrier and loading tetraethylenepentamine(TEPA)via wet impregnation.TEPA-MRM was characterized by TG,SEM,and N2 absorption-adsorption.The effect of different conditions on the adsorption performance was investigated.The experimental results indicated that acid-based pretreatment improved the pore structure of RM,which was beneficial for the loading of organic amines.The suitable conditions for preparing TEPA-MRM were drying temperature of 60℃,pretreatment temperature of 100℃,TEPA load of 20%(w),and adsorption temperature of 70℃.Under the above conditions,the adsorption capacity of TEPA-MRM for CO2 was 13.25 mg/g,which was nearly 15 times higher than that of modified RM.After 8 adsorption-desorption cycles,the adsorption capacity of TEPA-MRM only decreased by 18.3%.The dual goals of CO2 capture and resource utilization of industrial solid waste RM were achieved.关键词
赤泥/固态胺吸附剂/改性/CO2吸附活性/循环稳定性Key words
red mud/solid amine adsorbent/modification/CO2 adsorption activity/cyclic stability分类
化学化工引用本文复制引用
梁文俊,张艳,杨岚,刘佳,孙莉..赤泥基固态胺吸附剂吸附CO2性能研究[J].石油化工,2024,53(12):1733-1739,7.
