Steady-state and dynamic desorption of organic vapor from activated carbon with electrothermal swing adsorption

Hamidreza Emamipour, Zaher Hashisho, Diego Cevallos, Mark J. Rood, Deborah L. Thurston, K. James Hay, Byung J. Kim, Patrick D. Sullivan

Research output: Contribution to journalArticle

Abstract

A new method to achieve steady-state and dynamic-tracking desorption of organic compounds from activated carbon was developed and tested with a bench-scale system. Activated carbon fiber cloth (ACFC) was used to adsorb methyl ethyl ketone (MEK) from air streams. Direct electrothermal heating was then used to desorb the vapor to generate select vapor concentrations at 500 ppmv and 5000 ppmv in air. Dynamic-tracking desorption was also achieved with carefully controlled yet variable vapor concentrations between 250 ppmv and 5000 ppmv, while also allowing the flow rate of the carrier gas to change by 100%. These results were also compared to conditions when recovering MEK as a liquid, and using microwaves as the source of energy to regenerate the adsorbent to provide MEK as a vapor or a liquid.

Original languageEnglish (US)
Pages (from-to)5063-5069
Number of pages7
JournalEnvironmental Science and Technology
Volume41
Issue number14
DOIs
StatePublished - Jul 15 2007

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ASJC Scopus subject areas

  • Chemistry(all)
  • Environmental Chemistry

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