Study on Burnout and so2 Emission Characteristics during Co-Combustion of Petroleum Coke and Oil Shale in a Fluidized Bed

Wei Qun Lu; Ding Ye Fang; Zhi Yong Yang

doi:10.4028/www.scientific.net/AMM.55-57.1547

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 55-57Study on Burnout and so2 Emission Characteristics...

Study on Burnout and so₂Emission Characteristics during Co-Combustion of Petroleum Coke and Oil Shale in a Fluidized Bed

Abstract:

The effects of several factors, including fuel mixing ratio fed into boiler, bed temperature, primary air ratio, on burnout characteristics of mixed fuel of petroleum coke and oil shale were investigated at a 1 MW circulating fluidized bed (CFB) test apparatus at Xi’an Thermal Engineering Research Institute. Meantime, the effect of the fuel mixing ratio and Ca/S molar ratio on SO₂ emission during co-combustion of petroleum coke and oil shale were studied. The results show that preferred mixing ratio of petroleum coke over oil shale is between 4:6 and 5:5, and primary air ratio is about 55% to accomplish favorable burnout of the mixed fuel. The combustion efficiency is higher than 97%. The increase in oil shale share in the mixture helps to improve the desulfurization efficiency during co-combustion. There is an optimum Ca/S molar ratio to achieve the highest desulfurization efficiency for co-firing the petroleum coke and oil shale. SO₂ emission during co-combustion of petroleum coke and oil shale can meet the environmental requirement.

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Periodical:

Applied Mechanics and Materials (Volumes 55-57)

Pages:

1547-1553

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.55-57.1547

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Online since:

May 2011

Authors:

Wei Qun Lu, Ding Ye Fang, Zhi Yong Yang

Keywords:

Burnout Characteristics, Co-Combustion, Fluidized Bed, Oil Shale, Petroleum Coke, SO₂

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