Optimization studies of hydrogen production via biogas steam reforming

MARÍA VICTORIA DEL PÓPOLO GRZONA; EDUARDO MIGUEL IZURIETA; MARIA ESPERANZA ADROVER; DANIEL OSCAR BORIO; EDUARDO LOPEZ; MARISA NOEMI PERDERNERA

Simposio; 8th Symposium on Hydrogen, Fuel Cells and Advanced Batteries; 2022

The present contribution presents optimization studies regarding an autothermal process to produce pure H2 from biogas. After purification, biomethane steam reforming is poposed in a bayonet-type convective reformer. The pro-cess includes as well a membrane reactor where the WGS reaction is carried out in parallel with ultrapure hydrogen separation from the syngas. Three different optimization scenarios are studied where the hydrogen production is maximized and reactor areas minimized differently weighted. Optimization studies show that the BR and MR areas compensates each other to maintain H2 production as well as to assure the heat integration in the process. The MR appears to impact with higher weigth in the total area required summing both reactors to maintain the hydrogen production flowrate. An economical analysis appears rele-vant to contribute in the final design.