Filter aids influence on pressure drop across a filtration system

29th Symposium of Malaysian Chemical Engineers 2016

Hajar, S.^1 ; Rashid, M.^1 ; Nurnadia, A.^1 ; Ammar, M.R.^2 ; Hasfalina, C.M.^3

Air Resources Research Laboratory, Malaysia-Japan International Institute of Technology, UTM Kuala Lumpur

54100, Malaysia^1

AMR Environmental SDN. Bhd., Taman Sri Pulai Perdana, Johor Bahru

81110, Malaysia^2

Department of Biological and Agricultural Engineering, Universiti Putra Malaysia, Serdang, Selangor

43400, Malaysia^3

关键词: Air filtration system;    Different particle sizes;    Fabric filtration;    Filtration systems;    Filtration velocity;    Lower pressures;    Main parameters;    Material loading;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/206/1/012054/pdf
DOI  :  10.1088/1757-899X/206/1/012054

来源: IOP

【 摘 要 】

Filter aids is commonly used to reduce pressure drop across air filtration system as it helps to increase the efficiency of filtration of accumulated filter cake. Filtration velocity is one of the main parameters that affect the performance of filter aids material. In this study, a formulated filter aids consisting of PreKot™ and activated carbon mixture (designated as PrekotAC) was tested on PTFE filter media under various filtration velocities of 5, 6, and 8 m/min at a constant material loading of 0.2 mg/mm2. Results showed that pressure drop is highly influenced by filtration velocity where higher filtration velocity leads to a higher pressure drop across the filter cake. It was found that PrekotAC performed better in terms of reducing the pressure drop across the filter cake even at the highest filtration velocity. The diversity in different particle size distribution of non-uniform particle size in the formulated PrekotAC mixture presents a higher permeability causes a lower pressure drop across the accumulated filter cake. The finding suggests that PrekotAC is a promising filter aids material that helps reducing the pressure drop across fabric filtration system.