Capture and recovery of methyl ethyl ketone with electrothermal-swing adsorption systems

David Ramirez, Hamidreza Emamipour, Eduardo X. Vidal, Mark J. Rood, K. James Hay

Research output: Contribution to journalArticlepeer-review

Abstract

The amount of organic vapors that are emitted to the atmosphere can be reduced with the use of electrothermal-swing adsorption (ESA) with activated carbon fiber cloth (ACFC). This paper describes a pilot-scale ESA system that was scaled up based on two ESA bench-scale systems. Each ESA system consists of two vessels with four ACFC cartridges. The bench-scale and pilot-scale systems were tested with adsorption and desorption cycles using gas streams containing 73-10,000ppmv and from 170-940ppmv methyl ethyl ketone, respectively. Total flow rate ranged from 5 sL/min to 140 sL/min for the bench unit and 1,700 sL/min for the pilot unit. Scale-up procedure of an ESA system from the bench-scale to the pilot-scale is presented for the first time. Scale-up was based on throughput ratio, length of unused bed, adsorption capacity, pressure drop, superficial gas velocity in the ACFC, organic vapor removal efficiency, duration of the adsorption cycle, duration of the regeneration cycle, liquid recovery efficiency, electrical power/energy applied to the ACFC cartridges, and temperature of the ACFC cartridges.

Original languageEnglish (US)
Pages (from-to)826-832
Number of pages7
JournalJournal of Environmental Engineering
Volume137
Issue number9
DOIs
StatePublished - Sep 1 2011

Keywords

  • Activated carbon
  • Activated carbon fibers
  • Adsorption
  • Air pollution
  • Desorption
  • Electrothermal desorption
  • Fibers
  • Organic compounds
  • Thermal factors

ASJC Scopus subject areas

  • Environmental Engineering
  • Civil and Structural Engineering
  • Environmental Chemistry
  • Environmental Science(all)

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