An experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter

Filter media made of expanded polytetrafluoroethylene filters are known to be incompatible with poly-alpha-olefin or any oil-based challenge particles, and thus, filters made of expanded polytetrafluoroethylene had limited use in pharmaceutical applications. The benefits of expanded polytetrafluoroe...

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Autores principales:	Tee Lin, Omid Ali Zargar, Yu-Sheng Huang, Dexter Lyndon Sabusap, Shih-Cheng Hu, Graham Leggett
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Aerosol Expanded polytetrafluoroethylene High-efficiency particulate air filter Membrane filter Filter challenge test Dust holding capacity Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/f98e30921d2e447bb2df991ada4a486a
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spelling	oai:doaj.org-article:f98e30921d2e447bb2df991ada4a486a2021-11-22T04:18:47ZAn experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter1026-918510.1016/j.sajce.2021.11.011https://doaj.org/article/f98e30921d2e447bb2df991ada4a486a2022-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1026918521000676https://doaj.org/toc/1026-9185Filter media made of expanded polytetrafluoroethylene filters are known to be incompatible with poly-alpha-olefin or any oil-based challenge particles, and thus, filters made of expanded polytetrafluoroethylene had limited use in pharmaceutical applications. The benefits of expanded polytetrafluoroethylene filters, e.g. intrinsic durability, more energy-efficient, chemical inertness, etc., are therefore not being fully utilized. A new expanded polytetrafluoroethylene filter media compatible with poly-alpha-olefin particles was then developed by a filter manufacturer. The goal of this study is to investigate the filtration performance and characteristics of the new expanded polytetrafluoroethylene media and to compare it with the conventional expanded polytetrafluoroethylene media. In this study, four pleated high-efficiency particulate air filters made of either the conventional or the new expanded polytetrafluoroethylene media, and either of the two variants of pleat depths (36 mm and 31 mm) were tested under two different challenge tests, one using potassium chloride (KCl) salt particles and the other using poly-alpha-olefin particles. Both challenge particles are submicron and polydisperse. The collection efficiency, pressure drop, and dust holding capacity were measured in both tests. Due to the sensitivity of KCl particle release to environmental factors, a repeatability test was also performed for the KCl test. poly-alpha-olefin test results show that the new expanded polytetrafluoroethylene filter performed remarkably better than the conventional expanded polytetrafluoroethylene filter, achieving a high amount of dust retention at the same preset final pressure drop.Tee LinOmid Ali ZargarYu-Sheng HuangDexter Lyndon SabusapShih-Cheng HuGraham LeggettElsevierarticleAerosolExpanded polytetrafluoroethyleneHigh-efficiency particulate air filterMembrane filterFilter challenge testDust holding capacityChemical engineeringTP155-156ENSouth African Journal of Chemical Engineering, Vol 39, Iss , Pp 62-71 (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aerosol Expanded polytetrafluoroethylene High-efficiency particulate air filter Membrane filter Filter challenge test Dust holding capacity Chemical engineering TP155-156
spellingShingle	Aerosol Expanded polytetrafluoroethylene High-efficiency particulate air filter Membrane filter Filter challenge test Dust holding capacity Chemical engineering TP155-156 Tee Lin Omid Ali Zargar Yu-Sheng Huang Dexter Lyndon Sabusap Shih-Cheng Hu Graham Leggett An experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter
description	Filter media made of expanded polytetrafluoroethylene filters are known to be incompatible with poly-alpha-olefin or any oil-based challenge particles, and thus, filters made of expanded polytetrafluoroethylene had limited use in pharmaceutical applications. The benefits of expanded polytetrafluoroethylene filters, e.g. intrinsic durability, more energy-efficient, chemical inertness, etc., are therefore not being fully utilized. A new expanded polytetrafluoroethylene filter media compatible with poly-alpha-olefin particles was then developed by a filter manufacturer. The goal of this study is to investigate the filtration performance and characteristics of the new expanded polytetrafluoroethylene media and to compare it with the conventional expanded polytetrafluoroethylene media. In this study, four pleated high-efficiency particulate air filters made of either the conventional or the new expanded polytetrafluoroethylene media, and either of the two variants of pleat depths (36 mm and 31 mm) were tested under two different challenge tests, one using potassium chloride (KCl) salt particles and the other using poly-alpha-olefin particles. Both challenge particles are submicron and polydisperse. The collection efficiency, pressure drop, and dust holding capacity were measured in both tests. Due to the sensitivity of KCl particle release to environmental factors, a repeatability test was also performed for the KCl test. poly-alpha-olefin test results show that the new expanded polytetrafluoroethylene filter performed remarkably better than the conventional expanded polytetrafluoroethylene filter, achieving a high amount of dust retention at the same preset final pressure drop.
format	article
author	Tee Lin Omid Ali Zargar Yu-Sheng Huang Dexter Lyndon Sabusap Shih-Cheng Hu Graham Leggett
author_facet	Tee Lin Omid Ali Zargar Yu-Sheng Huang Dexter Lyndon Sabusap Shih-Cheng Hu Graham Leggett
author_sort	Tee Lin
title	An experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter
title_short	An experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter
title_full	An experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter
title_fullStr	An experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter
title_full_unstemmed	An experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter
title_sort	experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/f98e30921d2e447bb2df991ada4a486a
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An experimental study on the filtration performance of a poly-alpha-olefin-compatible expanded polytetrafluoroethylene high-efficiency particulate air filter

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