Leaching and indirect mineral carbonation performance of coal fly ash-water solution system

被引：48

作者：

Han, Sang-Jun ^{[1
]}

Im, Hye Jin ^{[1
]}

Wee, Jung-Ho ^{[1
]}

机构：

[1] Catholic Univ Korea, Dept Environm Engn, Bucheon Si 420743, Gyeonggi Do, South Korea

来源：

APPLIED ENERGY | 2015年 / 142卷

基金：

新加坡国家研究基金会;

关键词：

Mineral carbonation; Leaching; Coal fly ash; Carbon dioxide capture and storage; Coal fired power plant; CO2; SEQUESTRATION; ACCELERATED CARBONATION; DIOXIDE CAPTURE; ALUMINUM; TECHNOLOGY; COMBUSTION; HYDROXIDE; ALKALINE; ELEMENTS;

D O I：

10.1016/j.apenergy.2014.12.074

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：

The leaching and carbonation performances of indirect mineral carbonation are investigated using coal fly ash (FA) as the raw source and water as the solvent. The reactions were conducted at ambient temperature and pressure with a gas mixture comprised of 15 and 33 mol% CO2. The overall CO2 storage and mineral carbonation capacities of FA suspended solution in which alkaline components had been previously leached for 2 h (2533) were 31.06 and 17.36 mg CO2/g FA, respectively. The mineral carbonation capacity of FA in 2S33 was 18% of the theoretical value and its mineral carbonation storage capacity ratio was 55.9%. The performance of 2S33 was higher than that of its filtrate because the alkaline components were leached from the suspended FA simultaneously with the mineral carbonation. Submicrometer-sized particles were present in raw FA and their size was reduced by stirring during the leaching, as well as slightly increased, compared to the original raw FA, due to the carbonation. These submicro FA particles strongly affected the performance of the mineral carbonation of the FA-water solution. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：274 / 282

页数：9

共 36 条

[1]

Ahlgren WL, 2012, P IEEE, V100, P3001, DOI 10.1109/JPROC.2012.2192469

[2] Reactivity of alkaline lignite fly ashes towards CO2 in water [J].

Back, Martin ;

Kuehn, Michael ;

Stanjek, Helge ;

Peiffer, Stefan .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2008, 42 (12) :4520-4526

[3]

Baspinar MS, 2014, KSCE J CIV ENG, V18, P47

[4] Optimization of cement and fly ash particle sizes to produce sustainable concretes [J].

Bentz, Dale P. ;

Hansen, Andrew S. ;

Guynn, John M. .

CEMENT & CONCRETE COMPOSITES, 2011, 33 (08) :824-831

[5] Dissolution kinetics of magnesium hydroxide for CO2 separation from coal-fired power plants [J].

Bharadwaj, Hari Krishna ;

Lee, Joo-Youp ;

Li, Xin ;

Liu, Zhouyang ;

Keener, Tim C. .

JOURNAL OF HAZARDOUS MATERIALS, 2013, 250 :292-297

[6] Alkali activation of fly ashes.: Part 1:: Effect of curing conditions on the carbonation of the reaction products [J].

Criado, A ;

Palomo, A ;

Fernández-Jiménez, A .

FUEL, 2005, 84 (16) :2048-2054

[7] Leaching of elements from coal fly ash: Assessment of its potential for use in filling abandoned coal mines [J].

Dutta, Binay K. ;

Khanra, Swapan ;

Mallick, Durjoy .

FUEL, 2009, 88 (07) :1314-1323

[8] PHYSICAL AND MORPHOLOGICAL-STUDIES OF SIZE-CLASSIFIED COAL FLY-ASH [J].

FISHER, GL ;

PRENTICE, BA ;

SILBERMAN, D ;

ONDOV, JM ;

BIERMANN, AH ;

RAGAINI, RC ;

MCFARLAND, AR .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1978, 12 (04) :447-451

[9] Carbon Dioxide Capture Using Calcium Hydroxide Aqueous Solution as the Absorbent [J].

Han, Sang-Jun ;

Yoo, Miran ;

Kim, Dong-Woo ;

Wee, Jung-Ho .

ENERGY & FUELS, 2011, 25 (08) :3825-3834

[10] Mechanisms of aqueous wollastonite carbonation as a possible CO2 sequestration process [J].

Huijgen, Wouter J. J. ;

Witkamp, Geert-Jan ;

Comans, Rob N. J. .

CHEMICAL ENGINEERING SCIENCE, 2006, 61 (13) :4242-4251

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