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Rigid ceramic media for filtering hot gases.

Seville, JPK, Clift, R, Withers, CJ and Keidel, W (1989) Rigid ceramic media for filtering hot gases. FILTR. & SEP., 26 (4 , Ju).

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A new generation of gas filter media is becoming available, based on rigidly bonded ceramic granules or fibres, and suitable for high temperature duty. This papers outlines the main considerations in selecting and applying such a medium. Pressure drop through a 'virgin' medium is readily predictable from simple tests at ambient conditions. Behaviour on 'conditioning' over many cycles of filtration and cleaning can be determined by a simple 'coupon test', which shows the range of filter velocities which can be used and the cleaning action needed. Low density media have some advantages, and this paper concentrates on one such medium which has been found to have good performance: Cerafil 12H10, formed as a bonded mat of synthetic ceramic fibres. It is currently supplied as cylindrical candles, but other geometries are under development. Experience in using Cerafil to filter gases generated by a pyrolytic incinerator treating contaminated soil is outlined.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Seville, JPK
Withers, CJ
Keidel, W
Date : 1 January 1989
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:10
Last Modified : 24 Jan 2020 21:51

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