气候变化领域集成服务门户(CCPortal): K2CO3 on porous supports for moisture-swing CO2 capture from ambient air

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DOI	10.1002/apj.3058
	K2CO3 on porous supports for moisture-swing CO2 capture from ambient air
	Zheng, Shiqiang; Cheng, Xinyue; Zhou, Wenjia; Wang, Tong; Zhu, Liangliang; Xiao, Hang; Chen, Xi
发表日期	2024
ISSN	1932-2135
EISSN	1932-2143
起始页码	19
结束页码	3
卷号	19 期号:3
英文摘要	Direct air capture (DAC) of CO2 is an important technology to mitigate mobile carbon emissions, reduce atmospheric CO2 concentration, and cope with climate change. Moisture-swing adsorption is regarded as one of the most promising technologies in DAC due to its low energy consumption and ease of operation. In this work, a cheap and easily available moisture-swing adsorbent of potassium carbonate loaded on porous supports (i.e., activated carbon, magnesium oxide, and zeolite) was prepared for CO2 capture from ambient air. The composite adsorbent of potassium carbonate on activated carbon showed the best performance with a DAC capacity of 0.562 mmol/g at 25 degrees C and 5% relative humidity. The effects of temperature, relative humidity, and CO2 concentration on the adsorption performance were investigated systematically, as well as the cyclic DAC performance. In 50 adsorption-desorption cycles, the adsorption capacity of the composite adsorbent decreased by similar to 40% due to potassium carbonate leaching loss during water evaporation but can be fully recovered simply by re-impregnating with potassium carbonate again.
英文关键词	activated carbon; direct air capture; moisture-swing; potassium carbonate
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
WOS记录号	WOS:001186249500001
来源期刊	ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/293360
作者单位	Northwest University Xi'an; Lingnan University
推荐引用方式 GB/T 7714	Zheng, Shiqiang,Cheng, Xinyue,Zhou, Wenjia,et al. K2CO3 on porous supports for moisture-swing CO2 capture from ambient air[J],2024,19(3).
APA	Zheng, Shiqiang.,Cheng, Xinyue.,Zhou, Wenjia.,Wang, Tong.,Zhu, Liangliang.,...&Chen, Xi.(2024).K2CO3 on porous supports for moisture-swing CO2 capture from ambient air.ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING,19(3).
MLA	Zheng, Shiqiang,et al."K2CO3 on porous supports for moisture-swing CO2 capture from ambient air".ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING 19.3(2024).