Influence of Filtration Velocity on Cake Formation in Fibrous Filters

Deivid Marques Nunes; Felipe Ferreira Gonçalves Alvarez; Fábio de Oliveira Arouca; Sandra Mara Santana Rocha; João Jorge Ribeiro Damasceno

doi:10.4028/www.scientific.net/MSF.727-728.1884

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Influence of Filtration Velocity on Cake Formation in Fibrous Filters
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HomeMaterials Science ForumMaterials Science Forum Vols. 727-728Influence of Filtration Velocity on Cake Formation...

Influence of Filtration Velocity on Cake Formation in Fibrous Filters

Abstract:

The filtration operation is one of the most widely used procedures in gas-solid separation due to its high removal efficiency, low cost and low sensitivity to variations in operating conditions. Therefore, the objective of this work is to study the effects of operating variables (pressure drop, filtration velocities and cleaning velocity) on the formation of filter cakes using gas-solid polypropylene filter media and particulate matter as for instance phosphate rock. The filtration velocities evaluated were 5, 7.5 and 10 cm/s with maximum pressure drops of 100, 200, 300 and 400mm H₂O and filter cleaning velocities of 15 cm/s by the reverse air flow method. The cake filtration porosity was estimated using the classical Ergun equation (1952) in the literature. The results led to important correlations for the use of fibrous filters in the removal of particles suspended in in micrometer aerosols.

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Periodical:

Materials Science Forum (Volumes 727-728)

Pages:

1884-1889

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.727-728.1884

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Online since:

August 2012

Authors:

Deivid Marques Nunes, Felipe Ferreira Gonçalves Alvarez, Fábio de Oliveira Arouca, Sandra Mara Santana Rocha, João Jorge Ribeiro Damasceno

Keywords:

Cake Filtration, Filtration Velocity, Porosity

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