Effect of Coal Fly Ash as Additive on the Sulfur Retention of Coal Briquette

Yan Xia Guo; Yu Ting Li; Fang Qin Cheng; Feng Ling Yang

doi:10.4028/www.scientific.net/AMR.512-515.1583

Paper Titles

Carbon Coated N-Doping of TiO₂ Nanotube Films with Enhanced Visible-Light Photocatalytic Activity
p.1564

China Coal Industry and Sustainable Development
p.1568

Competitive Growth of ZnO and ZnS Micro-Nano Structures
p.1574

Density Functional Theory Study of Influence of Hydrogen Molecule Absorption on the Field Emission Properties of Carbon Nanotubes
p.1579

Effect of Coal Fly Ash as Additive on the Sulfur Retention of Coal Briquette
p.1583

Effect of Rapid Quenching in Magnetic Field on the Microstructures and Electrochemical Performances of AB₅-Type Alloys
p.1589

Effect of Speed on Silica Antireﬂective Coatings by Dipping Coating
p.1597

Effects of Carrier on Supported Rare Earth Double Perovskite Oxide Catalysts for Catalytic Combustion of Methane
p.1601

Electroless Multilayer Coatings Used in the Protection of Thermosyphon Economizer from Corrosion
p.1607

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 512-515Effect of Coal Fly Ash as Additive on the Sulfur...

Effect of Coal Fly Ash as Additive on the Sulfur Retention of Coal Briquette

Abstract:

Clean coal briquette is one of the most effective techniques to remove SO₂ from coal combustion by using sulfur-retention agent to retain sulfur in coal residuals. Ca(OH)₂ has been proved to be an effective sulfur-retention agent. CaSO₄ as the primary sulfur-containing product, however, is thermal unstable at high temperatures. It has been reported that SiO₂, Al₂O₃, Fe₂O₃ etc. are excellent sulfur retention additives, those are abundant in coal fly ash. In this study coal fly ash was used to the additive to improve the sulfur retention of coal briquette. The results showed that the addition of coal fly ash can improve the sulfur retention. The modified coal fly ash obtained by calcinations assisted with Ca(OH)₂ can improve the sulfur retention more noticeable. The SEM and XRD results further indicated that coal fly ash promoted the formation of the sulfur-containing products such as Ca-Si-S-O compounds with high thermally stability.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 512-515)

Pages:

1583-1588

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.512-515.1583

Citation:

Cite this paper

Online since:

May 2012

Authors:

Yan Xia Guo, Yu Ting Li, Fang Qin Cheng, Feng Ling Yang

Keywords:

Coal Briquette, Coal Fly Ash, Sulfur Retention

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] R. Guan, W. Li, B. Li. Effects of Ca-based additives on desulfurization during coal pyrolysis. Fuel. 82(2003)1961-6.

DOI: 10.1016/s0016-2361(03)00188-1

Google Scholar

[2] Y. Ninomiya, L. Zhang, T. Nagashima, J. Koketsu, A. Sato. Combustion and De–SOx behavior of high-sulfur coals added with calcium acetate produced from biomass pyroligneous acid. Fuel. 83(2004) 2123–2131.

DOI: 10.1016/j.fuel.2004.05.011

Google Scholar

[3] L. Zhang, A. Sato, Y. Ninomiya, E. Sasaoka. In situ desulfurization during combustion of high-sulfur coals added with sulfur capture sorbents. Fuel. 82 (2003) 255–266.

DOI: 10.1016/s0016-2361(02)00277-6

Google Scholar

[4] Z. Li, B. Xiao. Study of a Newly High temperatured Compound Sulfur Fixation Agent for Burning coal. Sci. Technol. Engineer. 7(2007)3896-3898.

Google Scholar

[5] J. Cheng, J. Zhou, J. Liu, Z. Zhou, Z. Huang, X. Cao, et al. Sulfur removal at high temperature during coal combustion in furnaces: a review. Prog. Energy. Combus. Sci. 29(2003)381–405.

DOI: 10.1016/s0360-1285(03)00030-3

Google Scholar

[6] R. Iyer, J. Scott. Power station fly ash-a review of value-added utilization outside of the construction industry. Resour. Conserv. Recyc. 31(2001)217–228.

DOI: 10.1016/s0921-3449(00)00084-7

Google Scholar

[7] L. Yu. Fire modification of coal fly ash and its application in the waste water treatment. Bull. Miner, Petro. Geochem. [in Chinese] 25(2006)343-347.

Google Scholar

[8] P. Williams, J. Biernacki, L. Walker, H. Meyer, C. Rawn, J. Bai. Microanalysis of alkali-activated fly ash–CH pastes. Cem. Concr. Res. 32(2002)963–972.

DOI: 10.1016/s0008-8846(02)00734-2

Google Scholar

[9] A. Fernández-Jiménez, A. Palomo, M. Criado. Quantitative determination of phases in the alkali activation of fly ash. Part I. Potential ash reactivity. Fuel. 85(2006)625–634.

DOI: 10.1016/j.fuel.2005.08.014

Google Scholar

[10] D. Borah, M. Baruah，I. Haque. Oxidation of high sulfur coa1. Part 1. Desulfurization and evidence of the formation of oxidized organic sulfur species. Fuel. 80(2001)501-507.

DOI: 10.1016/s0016-2361(00)00120-4

Google Scholar