In this work, the potential of utilizing a polyetherimide (PEI) hollow-fiber membrane to separate synthetic biohydrogen mixture (H2/CO2) was studied. From the gas separation experiments, where the effects of feed to permeate pressure ratio (Pfeed/Ppermeate) and stage-cut as key factors were evaluated, it was found that the PEI membrane had the capacity to purify either H2 or CO2. It turned out that different separation settings should be chosen in accordance with the actual technological purpose, defined either as the enrichment of H2 or CO2. The highest H2 concentration (66.4 vol%) in the permeate was achieved at Pfeed/Ppermeate of 4.62 and stage-cut of 0.47, while the peak CO2 concentration (79.2 vol%) in the retentate was obtained by applying Pfeed/Ppermeate of 4.55 and stage-cut of 0.65. The assessment and discussion of results indicated the possible utilization of the CO2-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.
Bibliographical noteFunding Information:
Ministerstvo Školství, Mládeže a Tělovýchovy, Grant/Award Number: MSMT‐20364/2017‐3/5; Narodowe Centrum Badań i Rozwoju, Grant/Award Number: DZP/V4‐Korea‐1/190/2018; National Research Foundation of Korea, Grant/Award Number: 2017K1A3A1A67015923; Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, Grant/Award Number: NN 126995 Funding information
The authors would like to acknowledge their respective funding schemes for supporting this work: National Research, Development, and Innovation Office (NKFIH, Hungary) (grant number NN 126995); International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science & ICT (grant number: 2017K1A3A1A67015923); National Centre for Research and Development, Poland (DZP/V4‐Korea‐1/190/2018); Czech Ministry of Education, Youth and Sport (project 8F17005, contract no. MSMT‐20364/2017‐3/5).
© 2020 The Authors. International Journal of Energy Research published by John Wiley & Sons Ltd.
All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Nuclear Energy and Engineering
- Fuel Technology
- Energy Engineering and Power Technology