沼气
焦炭
洗涤器
硝酸
吸收(声学)
化学工程
氢氧化钠
化学
比表面积
材料科学
多孔性
无机化学
废物管理
有机化学
催化作用
复合材料
工程类
作者
Chen Yang,Mei Liu,Zhihui Qu,Ziwei Su
出处
期刊:Journal of physics
[IOP Publishing]
日期:2022-02-01
卷期号:2194 (1): 012047-012047
标识
DOI:10.1088/1742-6596/2194/1/012047
摘要
Abstract Poly-amino-based ionic liquid (IL) [TETAH] + [BF 4 ] - was mixed with sodium hydroxide solution for CO 2 separation from biogas in a spray scrubber packed with modified semi-coke. A CO 2 absorption capacity of 0.92mol was achieved when controlling the outlet CO 2 concentration below 3 vol%. The porous structure of semi-coke contributed to improving CO 2 absorption. Nitric acid oxidation and heat treatment could increase the specific surface area, enlarge the intrinsic pores and develop more micropores. Semi-coke firstly oxidized by nitric acid and then with heat treatment could not only exhibit higher specific surface area and more porous structure, but also show less degree of graphitization, which was suggested as possible to increase the reactivity to CO 2 . It was assumed that the absorption system in this research showed promising application in CO 2 separation from biogas as well as waste treatment.
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