Surface characteristics and CO2 adsorption capacities of acid-activated zeolite 13X prepared from palm oil mill fly ash

被引：74

作者：

Kongnoo, Aroon ^{[1
,2
,3
]}

Tontisirin, Supak ^{[4
]}

Worathanakul, Patcharin ^{[4
]}

Phalakornkule, Chantaraporn ^{[1
,4
,5
]}

机构：

[1] King Mongkuts Univ Technol Thonburi, Joint Grad Sch Energy & Environm, Bangkok 10140, Thailand

[2] Prince Songkla Univ, Fac Environm Management, Hat Yai 90110, Thailand

[3] Ctr Excellence Hazardous Subst Management HSM, Bangkok 10330, Thailand

[4] King Mongkuts Univ Technol North Bangkok, Fac Engn, Dept Chem Engn, Bangkok 10800, Thailand

[5] King Mongkuts Univ Technol North Bangkok, Res Ctr Renewable Energy & Prod, Bangkok 10800, Thailand

来源：

FUEL | 2017年 / 193卷

关键词：

Zeolite; 13X; Palm oil mill fly ash; Alkaline fusion; Acid activation; CO2; adsorption; CARBON-DIOXIDE; ALKALI FUSION; WASTE; CAPTURE; ADSORBENT; WATER; BENTONITE; MICROWAVE; NITROGEN; REMOVAL;

D O I：

10.1016/j.fuel.2016.12.087

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Zeolite 13X was synthesized from palm oil mill fly ash (POMFA) using an alkaline fusion method. A zeolite 13X yield of 85% was obtained at a mass ratio of NaOH/(SiO2 and Al2O3 precursors) of 1.6, a fusion temperature of 600 degrees C and a fusion time of 60 min. Acid activation was performed on the zeolite 13X product in order to enhance its CO2 adsorption capacity. Acid activation with 4-8 M HCl for 4 h produced a marked increase in the mesopore and total pore volumes of the zeolite 13X. This increased mesopore volume resulted in CO2 adsorption capacities of the acid-activated zeolite 13X at 6 M HCl for 4 h that were 22% higher than those of the unactivated zeolite 13X and 11% higher than those of the commercial zeolite 13X. The CO2 adsorption capacity obtained was 6.42 mol CO2/kg at a pressure of 403 kPa and a temperature of 32 degrees C. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：385 / 394

页数：10

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