Water Adsorption With Hysteresis Effect onto Microporous Activated Carbon Fabrics

Abstract

Understanding the adsorption of water vapor onto activated carbons is important for designing processes to remove dilute contaminants from humid gas streams, such as providing protection against chemical warfare agents (CWAs), or against toxic industrial compounds (TICs) used in a terrorist chemical attack. Water vapor isotherms for Calgon BPL granular activated carbon (GAC), military ASZM-TEDA GAC, electrospun activated carbon nanofibers (ACnF), Calgon Zorflex? activated carbon cloth, and Novoloid-based activated carbon fiber cloth (ACFC) are presented. Of particular interest are the ACFC isotherms, which exhibit an unusually high degree of hydrophobicity. The ACFC isotherms also show a correlation between water vapor adsorption hysteresis and the level of activation. Water vapor isotherm models from the literature are compared.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA499086

Entities

People

  • Brenton R. Stone
  • Mark J. Rood
  • Patrick D. Sullivan
  • Zaher Hashisho

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Adsorption
  • Carbon Fibers
  • Chemical Synthesis
  • Chemical Warfare
  • Chemical Warfare Agents
  • Chemistry
  • Desorption
  • Equations
  • Experimental Data
  • Humidity
  • Hydrophobic Properties
  • Hysteresis
  • Materials
  • Sorption
  • Surface Chemistry
  • Volatile Organic Compounds
  • Water Vapor

Readers

  • Aquatic Ecology
  • Critical Infrastructure Protection in CBRN and WMD Threats.
  • Electrochemical Engineering/ Fuel Cell Technologies

Technology Areas

  • Biotechnology