Characterization of porous alkali-activated fly ash composite as a solid absorbent

被引：35

作者：

Chindaprasirt, Prinya ^{[1
,2
]}

Rattanasak, Ubolluk ^{[3
]}

机构：

[1] Khon Kaen Univ, Fac Engn, Dept Civil Engn, Sustainable Infrastruct Res & Dev Ctr, Khon Kaen 40002, Thailand

[2] Royal Soc Thailand, Off Royal Soc, Bangkok 10300, Thailand

[3] Burapha Univ, Fac Sci, Dept Chem, Chon Buri 20131, Thailand

来源：

INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL | 2019年 / 85卷

关键词：

Porous alkali-activated fly ash; High-calcium fly ash; CO2; capture; Absorbent; CARBON-DIOXIDE; POWER-PLANT; ZEOLITE; 13X; CO2; CAPTURE; CEMENT; GEOPOLYMERS; ADSORPTION; ADSORBENT;

D O I：

10.1016/j.ijggc.2019.03.011

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This research proposed the synthesis of porous alkali-activated fly ash (AA-fly ash) composites with a simple method for CO2 capture application. Two types of foaming agents, viz., zinc stearate/H2O2 and Al powder, were used to produce pores in the materials. Results revealed that porous AA-fly ash composite with a density of 1 g/cm(3) could be fabricated. Using Al powder, the method obtained a porous AA-fly ash paste with surface area of 36 m(2)/g, values which were higher than those of zinc stearate/H2O2. The AA-fly ash composite was crushed and applied as the CO2 gas absorbent. The absorption rate was 0.12 g CO2 per gram of porous AA-fly ash composite, suggesting that the porous AA-fly ash composite can be used as a solid absorbent. In addition, the production process is simple and cost effective.

引用

页码：30 / 35

页数：6

共 31 条

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