Biomethanation of blast furnace gas using anaerobic granular sludgeviaaddition of hydrogen

Abstract

The schematic diagram of mechanism for biomethanation of CO2 and CO from blast furnace gas.

Carbon Sequestration Through Syngas Biomethanation Coupled with H2 Supply for a Clean Production of Natural Gas Grade Biomethane

“…As a result, the produced gas from syngas biomethanation consists of a high fraction of CO2, which will be released unexploited to the atmosphere unless it is further upgraded to CH4. An attractive alternative to the present downstream processing technologies is the in-situ exogenous H2 supply to the syngas biomethanation unit in order to counterbalance the stoichiometric excess of CO2 [11]. To comply with the biobased circular economy agenda, H2 should derive from sustainable sources, such as water electrolysis from the surplus electricity produced from solar panels or wind turbines.…”