Calcium oxide as high temperature CO2 sorbent: Effect of textural properties

被引：36

作者：

Chen, Chao ^{[1
,2
]}

Yang, Seung-Tae ^{[1
]}

Ahn, Wha-Seung ^{[1
]}

机构：

[1] Inha Univ, Dept Chem Engn, Inchon 402751, South Korea

[2] Xinyang Normal Univ, Coll Chem & Chem Engn, Xinyang 464000, Henan Province, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 75卷

关键词：

Calcium oxide; CO2; capture; Sorbent; Pore size effect; CARBON-DIOXIDE; CAPTURE; ADSORPTION; REACTIVITY; ALKALI; CYCLE;

D O I：

10.1016/j.matlet.2012.02.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of CaO samples were prepared and tested as a sorbent for global-warming CO2 gas by measuring their CO2 capture capacities at 700 degrees C using a TGA unit. It is demonstrated that average pore size in CaO sorbents plays the governing role in deciding sorbent CO2 capture capacity, and that average pore size overrides the contributions of surface areas or pore volume. Sufficiently large pores in a macro range were necessary in CaO to prevent pore-filling and plugging by the CaCO3 produced during the carbonation process. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：140 / 142

页数：3

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