Biological production of hydrogen -one of the most promising alternative energy fuels- was planned torealize in an integrated system, where hydrogen is separated by a membrane technique. In this project poly-ethersulfone-polyimide hollow fiber membrane was applied in a specially constructed gas separation apparatusand the process was studied using model gas mixtures.
Horvath, R., Orosz, T., Balint, B., Wessling, M., Koops, G. H., Kapantaidakis, G., & Belafi-Bako, K. (2004). Application of gas separation to recover biohydrogen produced by Thiocapsa roseopersicina. Desalination, 163(1-3), 261-265. https://doi.org/10.1016/S0011-9164(04)90198-1