Hydrogen separation by multi-bed pressure swing adsorption of synthesis gas

Se Il Yang, Do Young Choi, Seong Cheol Jang, Sung Hyun Kim, Dae Ki Choi

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Abstract

The performance of multi-bed pressure swing adsorption (PSA) process for producing high purity hydrogen from synthesis gas was studied experimentally and theoretically using layered beds of activated carbon and zeolite 5A. Nonisothermal and nonadiabatic models, considering linear driving force model and Dual-site Langmuir adsorption isotherm model, were used. The effects of the following PSA variables on separation process were investigated: linear velocity of feed, adsorption time and purge gas quantity. As a result, we recovered a high purity H 2 product (99.999%) with a recovery of 66% from synthesis gas when the pressure was cycled between 1 and 8 atm at ambient temperature.

Original languageEnglish
Pages (from-to)583-590
Number of pages8
JournalAdsorption
Volume14
Issue number4-5
DOIs
Publication statusPublished - 2008 Oct 1

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Keywords

  • Hydrogen separation
  • Pressure swing adsorption
  • Synthesis gas

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Process Chemistry and Technology
  • Chemical Engineering(all)

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