Size Distributions, Microstructures, and Elemental Compositions of PM2.5 from Two Coal-Fired Fluidized-Bed Boilers Equipped with Fabric Filters

Zhifeng Zhao; Heming Dong; Xin Guo

doi:10.1021/acs.energyfuels.9b03782

Size Distributions, Microstructures, and Elemental Compositions of PM_2.5 from Two Coal-Fired Fluidized-Bed Boilers Equipped with Fabric Filters

Zhifeng Zhao^*
, Heming Dong
, Xin Guo

^*Corresponding author for this work

Huaiyin Institute of Technology
School of Energy Science and Engineering, Harbin Institute of Technology
Harbin Boiler Co Ltd

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

4 Scopus citations

Abstract

PM_2.5 is one of the main atmospheric pollutants in China, and coal burning is the main emission source of PM_2.5. At present, PM_2.5 emission characteristics of the coal-fired fluidized-bed boiler are less to date, especially those of the coal-fired bubbling fluidized-bed (BFB) boiler. In this work, number and mass size distributions, microstructures, and elemental compositions of PM_2.5 produced from a coal-fired circulating fluidized-bed (CFB) boiler and a coal-fired BFB boiler before and after the fabric filter (FF) were studied. Number size distributions of PM_2.5 produced from the CFB boiler before and after the FF are both unimodal, but the ones PM_2.5 produced from the BFB boiler before and after the FF are both bimodal. Mass size distributions of PM_2.5 produced from the CFB boiler and the BFB boiler before and after the FF show no peak. Microstructures of PM_2.5 produced from the CFB boiler are almost all irregular in shape, but the ones produced from the BFB boiler are mainly spherical and irregular. The contents of Si and Al in PM_2.5 produced from the two fluidized-bed boilers before and after the FF are higher compared to those of other elements, and the contents of Cr, V, Mn, Ni, and Pb in PM_2.5 produced from the BFB boiler are higher, and gaseous Na, K, S, and Pb in flue gas can condense into PM_2.5 across the FFs.

Original language	English
Pages (from-to)	4899-4908
Number of pages	10
Journal	Energy and Fuels
Volume	34
Issue number	4
DOIs	https://doi.org/10.1021/acs.energyfuels.9b03782
State	Published - 16 Apr 2020
Externally published	Yes

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10.1021/acs.energyfuels.9b03782

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title = "Size Distributions, Microstructures, and Elemental Compositions of PM2.5 from Two Coal-Fired Fluidized-Bed Boilers Equipped with Fabric Filters",

abstract = "PM2.5 is one of the main atmospheric pollutants in China, and coal burning is the main emission source of PM2.5. At present, PM2.5 emission characteristics of the coal-fired fluidized-bed boiler are less to date, especially those of the coal-fired bubbling fluidized-bed (BFB) boiler. In this work, number and mass size distributions, microstructures, and elemental compositions of PM2.5 produced from a coal-fired circulating fluidized-bed (CFB) boiler and a coal-fired BFB boiler before and after the fabric filter (FF) were studied. Number size distributions of PM2.5 produced from the CFB boiler before and after the FF are both unimodal, but the ones PM2.5 produced from the BFB boiler before and after the FF are both bimodal. Mass size distributions of PM2.5 produced from the CFB boiler and the BFB boiler before and after the FF show no peak. Microstructures of PM2.5 produced from the CFB boiler are almost all irregular in shape, but the ones produced from the BFB boiler are mainly spherical and irregular. The contents of Si and Al in PM2.5 produced from the two fluidized-bed boilers before and after the FF are higher compared to those of other elements, and the contents of Cr, V, Mn, Ni, and Pb in PM2.5 produced from the BFB boiler are higher, and gaseous Na, K, S, and Pb in flue gas can condense into PM2.5 across the FFs.",

author = "Zhifeng Zhao and Heming Dong and Xin Guo",

note = "Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",

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T1 - Size Distributions, Microstructures, and Elemental Compositions of PM2.5 from Two Coal-Fired Fluidized-Bed Boilers Equipped with Fabric Filters

AU - Zhao, Zhifeng

AU - Dong, Heming

AU - Guo, Xin

PY - 2020/4/16

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N2 - PM2.5 is one of the main atmospheric pollutants in China, and coal burning is the main emission source of PM2.5. At present, PM2.5 emission characteristics of the coal-fired fluidized-bed boiler are less to date, especially those of the coal-fired bubbling fluidized-bed (BFB) boiler. In this work, number and mass size distributions, microstructures, and elemental compositions of PM2.5 produced from a coal-fired circulating fluidized-bed (CFB) boiler and a coal-fired BFB boiler before and after the fabric filter (FF) were studied. Number size distributions of PM2.5 produced from the CFB boiler before and after the FF are both unimodal, but the ones PM2.5 produced from the BFB boiler before and after the FF are both bimodal. Mass size distributions of PM2.5 produced from the CFB boiler and the BFB boiler before and after the FF show no peak. Microstructures of PM2.5 produced from the CFB boiler are almost all irregular in shape, but the ones produced from the BFB boiler are mainly spherical and irregular. The contents of Si and Al in PM2.5 produced from the two fluidized-bed boilers before and after the FF are higher compared to those of other elements, and the contents of Cr, V, Mn, Ni, and Pb in PM2.5 produced from the BFB boiler are higher, and gaseous Na, K, S, and Pb in flue gas can condense into PM2.5 across the FFs.

AB - PM2.5 is one of the main atmospheric pollutants in China, and coal burning is the main emission source of PM2.5. At present, PM2.5 emission characteristics of the coal-fired fluidized-bed boiler are less to date, especially those of the coal-fired bubbling fluidized-bed (BFB) boiler. In this work, number and mass size distributions, microstructures, and elemental compositions of PM2.5 produced from a coal-fired circulating fluidized-bed (CFB) boiler and a coal-fired BFB boiler before and after the fabric filter (FF) were studied. Number size distributions of PM2.5 produced from the CFB boiler before and after the FF are both unimodal, but the ones PM2.5 produced from the BFB boiler before and after the FF are both bimodal. Mass size distributions of PM2.5 produced from the CFB boiler and the BFB boiler before and after the FF show no peak. Microstructures of PM2.5 produced from the CFB boiler are almost all irregular in shape, but the ones produced from the BFB boiler are mainly spherical and irregular. The contents of Si and Al in PM2.5 produced from the two fluidized-bed boilers before and after the FF are higher compared to those of other elements, and the contents of Cr, V, Mn, Ni, and Pb in PM2.5 produced from the BFB boiler are higher, and gaseous Na, K, S, and Pb in flue gas can condense into PM2.5 across the FFs.

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U2 - 10.1021/acs.energyfuels.9b03782

DO - 10.1021/acs.energyfuels.9b03782

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ER -

Size Distributions, Microstructures, and Elemental Compositions of PM_2.5 from Two Coal-Fired Fluidized-Bed Boilers Equipped with Fabric Filters

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