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The Evaluation of CO Adsorbents Used in PSA Process for the Purification of Reformed Hydrogen
Author(s) -
Jin-Nam Park
Publication year - 2016
Publication title -
journal of hydrogen and new energy
Language(s) - English
Resource type - Journals
eISSN - 2288-7407
pISSN - 1738-7264
DOI - 10.7316/khnes.2016.27.6.628
Subject(s) - zeolite , adsorption , bet theory , hydrogen , chemistry , chemical engineering , materials science , process (computing) , chromatography , nuclear chemistry , catalysis , organic chemistry , computer science , engineering , operating system
>> 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.

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