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Design of metallic nickel hollow fiber membrane modules for pure hydrogen separation
Author(s) -
Li Yuan,
Zhang Mingzhi,
Chu Yuanyuan,
Tan Xiaoyao,
Gao Jun,
Wang Shaobin,
Liu Shaomin
Publication year - 2018
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.16332
Subject(s) - membrane , pressure drop , hydrogen , countercurrent exchange , nickel , separation (statistics) , materials science , work (physics) , chemical engineering , permeation , chemistry , process engineering , metallurgy , thermodynamics , mechanical engineering , engineering , computer science , organic chemistry , biochemistry , physics , machine learning
Cost‐effective and robust nickel (Ni) membrane for H 2 separation is a promising technology to upgrade the conventional H 2 industries with improved economics and environmental benignity. In this work, Ni hollow fibers (HFs) with one closed end were fabricated and assembled into a membrane module for pure H 2 separation by applying vacuum to the permeate side. The separation behavior of the HF module was investigated both experimentally and theoretically. Results indicate that H 2 recovery can be improved significantly by changing the operation conditions (temperature or feed pressure). Ni HF is a promising membrane geometry, but the negative effect of pressure drop when H 2 passes through the lumen cannot be ignored. Under the vacuum operation mode, there is little difference in term of H 2 recovery efficiency whether the feed gas flow is controlled in countercurrent or recurrent operation. This work provides important insight to the development of superior membrane H 2 separation system. © 2018 American Institute of Chemical Engineers AIChE J , 64: 3662–3670, 2018