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THERMODYNAMIC ASPECTS OF ALKALI COLLECTION IN FLUIDISED BED COMBUSTION OF COAL.

Scandrett, LA and Clift, R (1984) THERMODYNAMIC ASPECTS OF ALKALI COLLECTION IN FLUIDISED BED COMBUSTION OF COAL.

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Abstract

Recent vapour pressure measurements and calculations of thermodynamic equilibrium conditions suggest that, in gases obtained by pressurised coal combustion, only a few percent of the sodium and potassium should remain as vapour phase chlorides. The bulk of the alkalis are predicted to form sulphate, condensed onto entrained fly ash or present as an aerosol. Filtration of the condensed sulphates may suffice to reduce alkalis to levels acceptable to a gas turbine. Alumino-silicate materials appear to be potential filter media, because collected aerosol should be retained by reaction with the filter medium.

Item Type: Article
Authors :
NameEmailORCID
Scandrett, LAUNSPECIFIEDUNSPECIFIED
Clift, Rr.clift@surrey.ac.ukUNSPECIFIED
Date : 1 December 1984
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:09
Last Modified : 17 May 2017 15:01
URI: http://epubs.surrey.ac.uk/id/eprint/834260

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