Háskóli ÍslandsUniversity of IcelandSafarian, SaharUnnthorsson, RunarRichter, Christiaan2021-03-042021-03-042021-02-28Safarian, S., Unnthorsson, R., & Richter, C. (2021). Hydrogen production via biomass gasification: simulation and performance analysis under different gasifying agents. Biofuels, 1-10. doi:10.1080/17597269.2021.18947811759-72691759-7277 (eISSN)https://hdl.handle.net/20.500.11815/2480This study develops a new simulation model by ASPEN Plus for gasification integrated with water-gas shift reactors and product recovery unit for hydrogen production. Timber and wood waste (T&WW) as a lignocellulosic biomass was also considered as the input feedstock to the system. Then, the model is applied to investigate the effect of two agents of air and a mixture of air-steam under different operating conditions of temperature and steam to biomass ratio (SBR). The results reveal that the produced hydrogen through the air-steam gasification is at the highest points for all studied temperatures and it would be maximum (44.37 kmol/hr per 1 ton T&WWs) at 700 °C. The hydrogen production efficiency (HPE) can be also raised, stemming from the growth of H2. It values 39.2% at SBR = 0.1 that grows to 70% at SBR = 0.9. The optimum SBR lies between 0.7–0.8 that specific mass flow rate of hydrogen would be higher than 0.1 kghydrogen/kgT&WW.1-10eninfo:eu-repo/semantics/openAccessHydrogen productionBiomass gasificationWater-gas shift reactorProcess simulationGasifying agentsVetniFramleiðslaGas (eldsneyti)Lífmassiinfo:eu-repo/semantics/articleBiofuels10.1080/17597269.2021.1894781