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oai:gredos.usal.es:10366/1439142025-04-30T20:45:49Zcom_10366_138521com_10366_4512com_10366_3823col_10366_138522

00925njm 22002777a 4500 dc Hernández Blázquez, Borja author García Blázquez, Cristina author Aristizábal-Marulanda, Valentina author Martín Martín, Mariano author 2020 [EN]This work presents a process optimization study of the production of H2 and methanol via dark fermentation. A kinetic model is developed for dark fermentation and it is implemented in the process optimization by means of orthogonal collocation. As a result from the entire process optimization, the optimal operating conditions of the process are determined. The investment in the process is estimated to be $18.2 M and has a production cost of $37.6 per kg of H2 produced when 1 kg/s of biomass is treated. The second process optimization study is developed for the production of methanol via hydrogenation of CO2. This process is estimated to require an investment of $ 16.4 M and the production cost is $6.9/kg of methanol when 1kg/s of biomass is treated. In both cases, the amounts of H2, 8 g/s, and methanol produced, 38 g/s, are very low in comparison with the resource treated. Hernández, B. et al., (2020). Production of H2 and methanol via dark fermentation. A process optimization study. Chem. Eng. Res. Des. 10.1021/acs.iecr.0c03336 0888-5885 http://hdl.handle.net/10366/143914 10.1021/acs.iecr.0c03336 Waste Dark fermentation Process optimization Production of H2 and methanol via dark fermentation. A process optimization study