Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion

Terttaliisa Lind; Esko Kauppinen; Jorma Jokiniemi; Willy Maenhaut; Tuomo Pakkanen

doi:10.1201/9780203736616-9

Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion

Terttaliisa Lind
, Esko Kauppinen
, Jorma Jokiniemi
, Willy Maenhaut
, Tuomo Pakkanen

VTT Technical Research Centre of Finland

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

Sodium and potassium behaviour in a power plant scale atmospheric circulating fluidised bed combustion (CFBC) of bituminous coal was studied in an 80 MW(th) boiler. In the experimental part of the work we determined the particle size distributions in the size range 0.01-70 pm for mass and several elements by collecting aerosols with a low-pressure impactor-cyclone sampling train, and analysing the samples gravimetrically and with INAA, PIXE and IC. The number size distributions of the aerosols were determined with a differential electrical mobility method in the size range 0.01-0.8 pm. A numerical aerosol simulation model was used to study the alkali behaviour after the CFBC process cyclone. Less than one percent of total alkalis in coal were found as water soluble after combustion. The modelling results support the experimental result that no more than one percent of alkalis have been condensed from the gas phase. The major part of the alkalis was found in aluminosilicates.

Original language	English
Title of host publication	The Impact of Ash Deposition on Coal Fired Plant
Subtitle of host publication	Proceedings of the Engineering Foundation Conference Held at the St. John's Swallow Hotel, Solihull, England
Editors	Jim Williamson
Place of Publication	New York
Publisher	Routledge
Pages	77-88
ISBN (Electronic)	978-0-203-73661-6
ISBN (Print)	978-1-56032-293-1
DOIs	https://doi.org/10.1201/9780203736616-9
Publication status	Published - 1994
MoE publication type	A4 Article in a conference publication
Event	Engineering Foundation Conference - St. John's Swallow Hotel, Solihull, United Kingdom Duration: 20 Jun 1993 → 25 Jun 1993

Conference

Conference	Engineering Foundation Conference
Country/Territory	United Kingdom
City	Solihull
Period	20/06/93 → 25/06/93

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10.1201/9780203736616-9

Cite this

Lind, T., Kauppinen, E., Jokiniemi, J., Maenhaut, W., & Pakkanen, T. (1994). Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion. In J. Williamson (Ed.), The Impact of Ash Deposition on Coal Fired Plant: Proceedings of the Engineering Foundation Conference Held at the St. John's Swallow Hotel, Solihull, England (pp. 77-88). Routledge. https://doi.org/10.1201/9780203736616-9

@inproceedings{171ef1632d8f41258633d45580fda02c,

title = "Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion",

abstract = "Sodium and potassium behaviour in a power plant scale atmospheric circulating fluidised bed combustion (CFBC) of bituminous coal was studied in an 80 MW(th) boiler. In the experimental part of the work we determined the particle size distributions in the size range 0.01-70 pm for mass and several elements by collecting aerosols with a low-pressure impactor-cyclone sampling train, and analysing the samples gravimetrically and with INAA, PIXE and IC. The number size distributions of the aerosols were determined with a differential electrical mobility method in the size range 0.01-0.8 pm. A numerical aerosol simulation model was used to study the alkali behaviour after the CFBC process cyclone. Less than one percent of total alkalis in coal were found as water soluble after combustion. The modelling results support the experimental result that no more than one percent of alkalis have been condensed from the gas phase. The major part of the alkalis was found in aluminosilicates.",

author = "Terttaliisa Lind and Esko Kauppinen and Jorma Jokiniemi and Willy Maenhaut and Tuomo Pakkanen",

year = "1994",

doi = "10.1201/9780203736616-9",

language = "English",

isbn = "978-1-56032-293-1",

pages = "77--88",

editor = "Jim Williamson",

booktitle = "The Impact of Ash Deposition on Coal Fired Plant",

publisher = "Routledge",

address = "United Kingdom",

note = "Engineering Foundation Conference ; Conference date: 20-06-1993 Through 25-06-1993",

}

Lind, T, Kauppinen, E, Jokiniemi, J, Maenhaut, W & Pakkanen, T 1994, Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion. in J Williamson (ed.), The Impact of Ash Deposition on Coal Fired Plant: Proceedings of the Engineering Foundation Conference Held at the St. John's Swallow Hotel, Solihull, England. Routledge, New York, pp. 77-88, Engineering Foundation Conference, Solihull, United Kingdom, 20/06/93. https://doi.org/10.1201/9780203736616-9

Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion. / Lind, Terttaliisa; Kauppinen, Esko; Jokiniemi, Jorma et al.
The Impact of Ash Deposition on Coal Fired Plant: Proceedings of the Engineering Foundation Conference Held at the St. John's Swallow Hotel, Solihull, England. ed. / Jim Williamson. New York: Routledge, 1994. p. 77-88.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion

AU - Lind, Terttaliisa

AU - Kauppinen, Esko

AU - Jokiniemi, Jorma

AU - Maenhaut, Willy

AU - Pakkanen, Tuomo

PY - 1994

Y1 - 1994

N2 - Sodium and potassium behaviour in a power plant scale atmospheric circulating fluidised bed combustion (CFBC) of bituminous coal was studied in an 80 MW(th) boiler. In the experimental part of the work we determined the particle size distributions in the size range 0.01-70 pm for mass and several elements by collecting aerosols with a low-pressure impactor-cyclone sampling train, and analysing the samples gravimetrically and with INAA, PIXE and IC. The number size distributions of the aerosols were determined with a differential electrical mobility method in the size range 0.01-0.8 pm. A numerical aerosol simulation model was used to study the alkali behaviour after the CFBC process cyclone. Less than one percent of total alkalis in coal were found as water soluble after combustion. The modelling results support the experimental result that no more than one percent of alkalis have been condensed from the gas phase. The major part of the alkalis was found in aluminosilicates.

AB - Sodium and potassium behaviour in a power plant scale atmospheric circulating fluidised bed combustion (CFBC) of bituminous coal was studied in an 80 MW(th) boiler. In the experimental part of the work we determined the particle size distributions in the size range 0.01-70 pm for mass and several elements by collecting aerosols with a low-pressure impactor-cyclone sampling train, and analysing the samples gravimetrically and with INAA, PIXE and IC. The number size distributions of the aerosols were determined with a differential electrical mobility method in the size range 0.01-0.8 pm. A numerical aerosol simulation model was used to study the alkali behaviour after the CFBC process cyclone. Less than one percent of total alkalis in coal were found as water soluble after combustion. The modelling results support the experimental result that no more than one percent of alkalis have been condensed from the gas phase. The major part of the alkalis was found in aluminosilicates.

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BT - The Impact of Ash Deposition on Coal Fired Plant

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Lind T, Kauppinen E, Jokiniemi J, Maenhaut W, Pakkanen T. Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion. In Williamson J, editor, The Impact of Ash Deposition on Coal Fired Plant: Proceedings of the Engineering Foundation Conference Held at the St. John's Swallow Hotel, Solihull, England. New York: Routledge. 1994. p. 77-88 doi: 10.1201/9780203736616-9

Alkali metal behaviour in atmospheric circulating fluidised bed coal combustion

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