Evaluation of on-site hydrogen generation via steam reforming of biodiesel: Process optimization and heat integration

摘要: Abstract The present simulation study investigates on-site hydrogen generation (50 Nm3/h) via steam reforming of biodiesel. system comprises a reformer, water gas shift stage, pressure swing adsorption unit and dual fuel burner. Sensitivity analysis with Aspen Plus shows positive effect on overall efficiency for high low steam-to-carbon ratio. A theoretical maximum (based lower heating value) 78.2% can be obtained requiring complex costly heat exchanger network. Consequently, simplification is proposed resulting in novel processor concept biodiesel based fully integrated system. thermal 75.6% at S/C = 2.53, p = 13 bara T = 825 °C. techno-economic evaluation reveals production costs ranging from 5.77 €/kg to 11.15 €/kg (depending the market price).