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Feasibility study of polyetherimide membrane for enrichment of carbon dioxide from synthetic biohydrogen mixture and subsequent utilization scenario using microalgae
Author(s) -
Bakonyi Péter,
Peter Jakub,
Nemestóthy Nándor,
Malý David,
Kumar Gopalakrishnan,
Koter Stanislaw,
Kim SangHyoun,
Kujawski Wojciech,
BélafiBakó Katalin,
Pientka Zbynek
Publication year - 2021
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.5732
Subject(s) - polyetherimide , biohydrogen , membrane , permeation , chemical engineering , membrane technology , materials science , chromatography , chemistry , process engineering , polymer , hydrogen , organic chemistry , engineering , hydrogen production , composite material , biochemistry
Summary In this work, the potential of utilizing a polyetherimide (PEI) hollow‐fiber membrane to separate synthetic biohydrogen mixture (H 2 /CO 2 ) was studied. From the gas separation experiments, where the effects of feed to permeate pressure ratio (P feed /P permeate ) and stage‐cut as key factors were evaluated, it was found that the PEI membrane had the capacity to purify either H 2 or CO 2 . It turned out that different separation settings should be chosen in accordance with the actual technological purpose, defined either as the enrichment of H 2 or CO 2 . The highest H 2 concentration (66.4 vol%) in the permeate was achieved at P feed /P permeate of 4.62 and stage‐cut of 0.47, while the peak CO 2 concentration (79.2 vol%) in the retentate was obtained by applying P feed /P permeate of 4.55 and stage‐cut of 0.65. The assessment and discussion of results indicated the possible utilization of the CO 2 ‐rich fraction (produced by the PEI membrane) for the biological sequestration using microalgae. To our knowledge, PEI membranes have not yet been tested in such a concept and thus, the results and experiences can mean a new contribution to the literature.