Techno-Economical Analysis for a 3 MWth Gasification Plant Revamping: Use of Enriched Air and Steam as Gasifying Agent

M. Campoy, A. Gómez-Barea, D. Fuentes-Cano, S. Nilsson, G. Claro & P. Ollero
An assessment of the revamping of a 3 MWth atmospheric­pressure bubbling fluidized bed biomass gasifier was made in order to study the techno­economical viability of changing the gasifying agent from air to a mixture of enriched air based on membrane technology (up to 40% in volume oxygen) and low­pressure saturated steam. The expected changes in the gasification yields were obtained from extrapolating the yields of the non­condensable main gases (H2, CO, CO2 and CH4) measured...