Performance of prekotac filter aids in pilot plant fabric filtration system

摘要

Filter aids is used in air filtration system to fulfil the needs to expand the life span of filter media in fabric filtration system. It has been applied in various ways and precoat filter aids is one of the methods. In this study, the effect of a filter aids performance known as PrekotAC on pressure drop and particle penetration in a filtration system with varying filtration velocity of 1 to 3 m/min was evaluated. The PrekotAC is a combination of PrekotTM and activated carbon mixed in different weight compositions. Result showed that the pressure drop across the fabric media decreases with the addition of PrekotTM in the PrekotAC admixture due to its wide range of non-uniform particle size distribution that gives higher porosity of filter cake during filtration process. The study also showed that the total particle penetration through the fabric media was proportionally related to addition of PrekotTM in the PrekotAC admixture under a constant material loading. The study suggests that the addition of PrekotTM in the formulation of filter aids significantly affect both pressure drop and particle penetration of the fabric filter media.