Integrated generation of solid fuel and biogas from green cut material from landscape conservation and private households
2011
Hensgen, F. | Richter, F. | Wachendorf, M.
Green cut material is a potential source of renewable energy which is not fully exploited through conventional energy recovery systems. A new energy conversion process, the integrated generation of solid fuel and biogas from biomass (IFBB), which includes mechanical separation after hydro-thermal conditioning, was investigated. Ash softening temperature and lower heating value of the solid fuel were increased through the IFFB process in comparison to the untreated raw material. The net energy yield of IFBB at 40°C conditioning temperature ranged between 1.96 and 2.85kWhkg⁻¹ dry matter (DM) and for the direct combustion between 1.75 and 2.65kWhkg⁻¹ DM. Conversion efficiencies for the IFBB system were 0.42–0.68 and for direct combustion 0.42–0.63. The IFBB system produces storable energy from material which is nowadays not used for energy conversion.
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