Experiment research on CO2 continuous capture using dual fluidized bed reactors with supported amine

doi:10.3969/j.issn.0438-1157.2013.10.021

CIESC Journal ›› 2013, Vol. 64 ›› Issue (10): 3640-3646.DOI: 10.3969/j.issn.0438-1157.2013.10.021

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Experiment research on CO₂ continuous capture using dual fluidized bed reactors with supported amine

ZHAO Wenying, ZHANG Zhi, LI Zhenshan, CAI Ningsheng

Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Beijing Municipal Key Laboratory for CO₂ Utilization & Reduction, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China

Received:2013-03-08 Revised:2013-05-29 Online:2013-10-05 Published:2013-10-05
Supported by:
supported by the High-tech Research and Development Program of China(2012AA06A115).

利用固态胺连续捕集二氧化碳的双流化床实验研究

赵文瑛, 张志, 李振山, 蔡宁生

清华大学热能工程系, 热科学与动力工程教育部重点试验室, 二氧化碳资源利用与减排技术北京市重点实验室, 北京 100084

通讯作者: 李振山
作者简介:赵文瑛(1987-),男,博士研究生。
基金资助:
国家高技术研究发展计划项目(2012AA06A115)

Abstract

Abstract: It is a potential technology to separate CO₂ at a low temperature(40—80℃)by using amine functionalized porous material.For the application of this technology,it is crucial to realize continuous CO₂ separation using dual-fluidized bed reactors.In this work,a dual fluidized bed reactors system based on supported amine sorbent was built to simulate continuous CO₂ capture from flue gas.The supported amine sorbent was prepared by impregnating polyethylenimine(PEI)with molecular weight of 600 on porous silica gel Q-10.The experimental results indicated that the supported amine sorbent successfully circulated between the absorber and the regenerator and the long-term and continuous separation efficiency reached up to 84.4% without steam.And separation efficiency was improved about 97% with 1.0%(vol) steam introduced.

Key words: solid amine, dual fluidized bed, CO₂, continuous capture

摘要： 低温固态胺吸收剂分离CO₂是一种非常有潜力的CO₂分离技术,利用双流化床反应器实现连续高效CO₂分离是此技术走向应用的关键。以商业硅胶颗粒为载体,以聚乙烯亚胺(PEI)为活性成分,通过浸渍法制备固态胺吸收剂,采用双流化床作为反应器,连续分离气体中的CO₂。实验结果表明,所采用的双流化床反应器能够实现两反应器间固态胺颗粒的连续稳定循环,长期连续分离CO₂的效率为84.4%;吸收反应器通入约1%的水蒸气后,捕集效率提高到约97%。

关键词: 固态胺, 双流化床, CO₂, 连续捕集

CLC Number:

TQ127

ZHAO Wenying, ZHANG Zhi, LI Zhenshan, CAI Ningsheng. Experiment research on CO₂ continuous capture using dual fluidized bed reactors with supported amine[J]. CIESC Journal, 2013, 64(10): 3640-3646.

赵文瑛, 张志, 李振山, 蔡宁生. 利用固态胺连续捕集二氧化碳的双流化床实验研究[J]. 化工学报, 2013, 64(10): 3640-3646.

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Experiment research on CO₂ continuous capture using dual fluidized bed reactors with supported amine

利用固态胺连续捕集二氧化碳的双流化床实验研究

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