Integration study on a two-stage fermentation process for the production of biohydrogen

In order to make the hydrogen economy fully sustainable, renewable resources have to be employed for its production. Simulation models, developed with Aspen Plus to calculate mass and energy balances, will be used to integrate the process steps necessary to produce pure hydrogen from biomass in a 2-stage fermentation process. The main challenge is the reduction of water and heat demand connected to the low substrate concentration in the fermentation steps; the easiest solution is to partly recirculate outgoing process streams. Electrolyte equilibrium was considered during simulation of different recirculation options to evaluate important effects on the pH and on the system osmolality. The results show that certain recirculation options can reduce the heat and water demand significantly.

Wukovits, Walter (author)
Friedl, Anton (author)
Ljunggren, MattiasLund University,Lunds universitet,Avdelningen för kemiteknik,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Chemical Engineering,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)chem-mil (author)
Zacchi, GuidoLund University,Lunds universitet,Avdelningen för kemiteknik,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Chemical Engineering,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kat-gza (author)
Urbaniec, Krzysztof (author)
Markowski, Mariusz (author)
Modigell, Michael (author)
Avdelningen för kemiteknikInstitutionen för processteknik och tillämpad biovetenskap (creator_code:org_t)

By the author/editor: Foglia, Domenico; Wukovits, Walter; Friedl, Anton; Ljunggren, Matti ...; Zacchi, Guido; Urbaniec, Krzysz ...; show more...; Markowski, Mariu ...; Modigell, Michae ...; show less...

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