Energy and Exergy Analysis of Biomass Gasification with Dried and Torrefied Willow as Feedstocks

D. Tapasvi, R.S. Kempegowda, I.S. Ertesvåg, K.-Q. Tran & Ø. Skreiberg
Torrefaction is a mild­pyrolysis process that can be employed as a pre­treatment to improve fuel properties of biomass materials. A promising way to use torrefied biomass for production of heat, electricity, and other biofuels is through biomass gasification. Many studies have evaluated biomass behavior in a gasification process. However, similar evaluations for torrefied feedstocks are very limited and this forms the basis for this study. A simplified Aspen Plus model for the mixed air­steam gasification...