Porous carbon supported calcium oxide for CO2adsorption and separation of CO2/CH4

被引：5

作者：

Jonnalagadda, Madhavi ^{[1
,2
]}

Ibrahim, Sobhy M. ^{[3
,4
,5
]}

Shair, Omar H. M. ^{[6
]}

Mutyala, Suresh ^{[7
]}

机构：

[1] Satavahana Univ, Govt Degree Coll Women, Dept Chem, Karimnagar 505001, Telangana, India

[2] Kakatiya Univ, Sri Ramachandra Arts & Sci Coll, Dept Chem, Karimnagar 505001, Telangana, India

[3] King Saud Univ, Coll Sci, Dept Biochem, Riyadh, Saudi Arabia

[4] Atom Energy Author, Hot Labs, Dept Analyt Chem & Control, Cairo, Egypt

[5] Atom Energy Author, Waste Management Ctr, Cairo, Egypt

[6] King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh, Saudi Arabia

[7] Univ Szeged, Interdisciplinary Excellence Ctr, Dept Appl & Environm Chem, Szeged, Hungary

来源：

ENVIRONMENTAL TECHNOLOGY | 2022年 / 43卷 / 03期

关键词：

CaO; porous carbon; carbon dioxide; adsorption and separation; heat of adsorption; PINNATA FRUIT HULLS; CO2; ADSORPTION; ACTIVATED CARBON; EFFICIENT CO2; CAPTURE; COMPOSITES; CH4; PYROLYSIS; MONOLITHS; CATALYSTS;

D O I：

10.1080/09593330.2020.1791973

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Calcium oxide incorporated porous carbon materials were synthesized by the impregnation method to study CO(2)adsorption and separation of CO2/CH4. The X-ray diffraction, Raman analysis, N(2)isotherms at 77 K, and SEM with EDX analysis were used to characterize synthesized materials. XRD and N(2)isotherm results have confirmed that synthesized carbon has porosity, and EDX analysis has reported that the presence of CaO on porous carbon. 10CaO/porous carbon has shown 31 cm(3) g(-1)of CO(2)adsorption which was higher than bare porous carbon CO(2)adsorption 17.5 cm(3) g(-1)at 298 K, 1 bar. It was attributed to electrostatic interaction between CaO and CO2. However, CH(4)adsorption was decreased by a decrease in surface area. The selectivity of CO2/CH(4)was higher for 10CaO/porous carbon and the heat of CO(2)adsorption was 36 KJ/mol at high adsorption of CO2. Moreover, CO(2)adsorption was the same in each adsorption cycle.

引用

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页码：460 / 468

页数：9

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