Characterization of activated carbon fiber filters for pressure drop, submicrometer particulate collection, and mercury capture

Toshiaki Hayashi, Tai Gyu Lee, Melynda Hazelwood, Elizabeth Hedrick, Pratim Biswas

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

The use of activated carbon fiber (ACF) filters for the capture of particulate matter and elemental Hg is demonstrated. The pressure drop and particle collection efficiency characteristics of the ACF filters were established at two different face velocities and for two different aerosols: spherical NaCl and combustion-generated silica particles. The clean ACF filter specific resistance was 153 kg m-2sec-1. The experimental specific resistance for cake filtration was 1.6 × 106 sec-1 and 2.4 × 105 sec-1 for 0.5- and 1.5-μm mass median diameter particles, respectively. The resistance factor R was approximately 2, similar to that for the high-efficiency particulate air filters. There was a discrepancy in the measured particle collection efficiencies and those predicted by theory. The use of the ACF filter for elemental Hg capture was illustrated, and the breakthrough characteristic was established. The capacity of the ACF filter for Hg capture was similar to other powdered activated carbons.

Original languageEnglish
Pages (from-to)922-929
Number of pages8
JournalJournal of the Air and Waste Management Association
Volume50
Issue number6
DOIs
Publication statusPublished - 2000 Jun

All Science Journal Classification (ASJC) codes

  • Waste Management and Disposal
  • Management, Monitoring, Policy and Law

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