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Hollow‐fiber‐based adsorbers for gas separation by pressure‐swing adsorption
Author(s) -
Feng Xianshe,
Pan Chuen Y.,
McMinis Curtis W.,
Ivory John,
Ghosh Dave
Publication year - 1998
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690440709
Subject(s) - pressure swing adsorption , adsorption , chemistry , fiber , pressure drop , chemical engineering , chromatography , hydrogen , activated carbon , gas separation , hollow fiber membrane , molecular sieve , membrane , organic chemistry , thermodynamics , biochemistry , physics , engineering
Hollow‐fiber‐based adsorbers for gas separation by pressure‐swing adsorption (PSA) was studied experimentally. The high efficiency of hollow‐fiber‐based adsorbers for gas separation was illustrated by hydrogen separation using fine‐powder‐activated carbon and molecular sieve as adsorbents. The adsorption equilibrium and dynamics of the hollow‐fiber adsorbers were determined. The pressure drop of the gas flowing through the adsorbers was also examined. The adsorbers were tested for hydrogen separation from nitrogen, carbon dioxide, and a multicomponent gas mixture simulating ammonia syn‐ thesis purge gas. The PSA systems using the hollow‐fiber adsorbers were very effective for hydrogen purification. The high separation efficiency is derived from the fast mass‐ transfer rate and low pressure drop, two key features of hollow‐fiber‐based adsorbers.