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The Evaluation of CO Adsorbents Used in PSA Process for the Purification of Reformed Hydrogen

개질 수소 정제용 PSA 공정을 위한 CO 흡착제의 성능 평가

  • PARK, JIN-NAM (Department of New & Renewable Energy, Kyungil University)
  • 박진남 (경일대학교 신재생에너지학과)
  • Received : 2016.10.21
  • Accepted : 2016.12.30
  • Published : 2016.12.30

Abstract

Natural gas reformed hydrogen is used as a fuel of fuel cell vehicle, PSA process is used for the purification of reformed hydrogen. In this study, the performance of CO adsorbent in PSA process was evaluated. Zeolite adsorbents used in the commercial PSA process is used. The physical and chemical properties of adsorbents were characterized using BET apparatus, XRD, and FE-SEM. The breakthrough apparatus modified from GC was used for the CO breakthrough experiment, the quantitative analysis of CO adsorption capacity was performed using CO breakthrough curve. Zeolite 10X and 13X showed superior CO adsorption capacity than activated alumina. The CO adsorption capacity of zeolite 10X is more than twice of zeolite 13X even the BET surface area is low. It seems that the presence of $Ca^{2+}$ cation in zeolite 10X is beneficial to the adsorption of CO.

Keywords

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