SO3 formation and the effect of fly ash in a bubbling fluidised bed under oxy-fuel combustion conditions

Yerbol Sarbassov; Lunbo Duan; Michal Jeremias; Vasilije Manovic; Edward J. Anthony

doi:10.1016/j.fuproc.2017.07.015

SO₃ formation and the effect of fly ash in a bubbling fluidised bed under oxy-fuel combustion conditions

Yerbol Sarbassov, Lunbo Duan, Michal Jeremias, Vasilije Manovic, Edward J. Anthony

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

This study investigates SO₃ formation under air-fired and oxy-fuel combustion environments in a bench-scale bubbling fluidised bed. Flue gas compositions typical of air-fired and oxy-fuel environments were simulated with synthetic gas mixtures. Parameters such as bed temperature and SO₂ and H₂O concentrations were varied to determine their effect on the formation of SO₃. Tests were also performed using three fly ashes produced from three different coals and combustion systems. Oxy-fuel combustion led to increased SO₃ concentration as compared to typical air-fired environments. SO₃ concentrations increased with combustion temperature and O₂ concentrations. SO₃ formation also depends on the chemical composition of the fly ash.

Original language	English
Pages (from-to)	314-321
Number of pages	8
Journal	Fuel Processing Technology
Volume	167
DOIs	https://doi.org/10.1016/j.fuproc.2017.07.015
Publication status	Published - 2017

Keywords

Catalysis
Fluidised bed
Oxy-fuel combustion
SO formation

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology

Access to Document

10.1016/j.fuproc.2017.07.015

Cite this

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title = "SO3 formation and the effect of fly ash in a bubbling fluidised bed under oxy-fuel combustion conditions",

abstract = "This study investigates SO3 formation under air-fired and oxy-fuel combustion environments in a bench-scale bubbling fluidised bed. Flue gas compositions typical of air-fired and oxy-fuel environments were simulated with synthetic gas mixtures. Parameters such as bed temperature and SO2 and H2O concentrations were varied to determine their effect on the formation of SO3. Tests were also performed using three fly ashes produced from three different coals and combustion systems. Oxy-fuel combustion led to increased SO3 concentration as compared to typical air-fired environments. SO3 concentrations increased with combustion temperature and O2 concentrations. SO3 formation also depends on the chemical composition of the fly ash.",

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AU - Sarbassov, Yerbol

AU - Duan, Lunbo

AU - Jeremias, Michal

AU - Manovic, Vasilije

AU - Anthony, Edward J.

PY - 2017

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AB - This study investigates SO3 formation under air-fired and oxy-fuel combustion environments in a bench-scale bubbling fluidised bed. Flue gas compositions typical of air-fired and oxy-fuel environments were simulated with synthetic gas mixtures. Parameters such as bed temperature and SO2 and H2O concentrations were varied to determine their effect on the formation of SO3. Tests were also performed using three fly ashes produced from three different coals and combustion systems. Oxy-fuel combustion led to increased SO3 concentration as compared to typical air-fired environments. SO3 concentrations increased with combustion temperature and O2 concentrations. SO3 formation also depends on the chemical composition of the fly ash.

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KW - Fluidised bed

KW - Oxy-fuel combustion

KW - SO formation

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