In the course of dark fermentative hydrogen production, a complex gaseous mixture with significant quantity of CO2 is formed. Hence, proper separation of H2 and CO2 is required for adequate utilization of hydrogen gas in fuel cell applications. Technological solutions for the removal of CO2 can be designed by using gas separation membranes. Nevertheless, contemporary systems should be concerned with the consecutive valorization of carbon dioxide, as well. In this review article, the membrane-based technologies aiming at the effective separation of CO2 and biohydrogen (bioH2) will be evaluated, along with concise discussion and perspectives of integrative schemes offering alternatives for the biologically-mediated (fermentative, bioelectrochemical and algal) conversion of carbon dioxide into value-added substances, such as methane, hydrocarbons, etc. With this analysis, the objective was to bring the most important aspects of membrane-assisted biohydrogen downstream technology under one cover and give insights to recent advancement and possible future research directions.
Bibliographical noteFunding Information:
The Hungarian authors thank the National Research, Development, and Innovation Office (NKFIH, Hungary) for the financial support of this work under grant number NN 126995. The János Bolyai Research Scholarship provided by the Hungarian Academy of Sciences is acknowledged. This project was supported by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science & ICT (Grant number: 2017K1A3A1A67015923 ). The Polish authors acknowledge the financial support of the National Centre for Research and Development ( DZP/V4-Korea-1/190/2018 ). The Czech authors thank the Czech Ministry of Education, Youth and Sport , project 8F17005, contract no. MSMT-20364/2017-3/5. The research at VITO on bacterial conversion of CO 2 and hydrogen into fuels is supported by the project BAC-TO-FUEL funded by the European Union’s Horizon 2020 Research and Innovation Programme , under Grant Agreement No. 825999.
All Science Journal Classification (ASJC) codes
- Chemical Engineering (miscellaneous)
- Waste Management and Disposal
- Process Chemistry and Technology