Modeling of hydrogen production from biomass bio-digestion under Aspen Plus

Abstract

The production of hydrogen from biogas via biomass is considered in this study. The objective is to model and evaluate the different processes of hydrogen production from biogas from anaerobic bio-digestion. Six hydrogen production processes by methane reforming from biogas were simulated and validated in Aspen Plus and then coupled with biogas production based on anaerobic bio-digestion (AD) process with a feed rate of 0.33 l/day of cow manure. The results of the coupling processes revealed that the process (DA-Steam Reforming) is the best in terms of hydrogen production, energy efficiency and CO2 production. Indeed, this process produced about 5.71l/day of H2 with an energy efficiency of 82.72% and the emission of CO2 gas of about 12.83 kg CO2 for 1 kg H2 produced.