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TY  - THES
AU  - Ohliger, Andreas
TI  - Experimentelle und theoretische Untersuchung der Torrefizierung von Buchenholz
PB  - Aachen, Techn. Hochsch.
VL  - Dissertation
CY  - Aachen
M1  - RWTH-2015-03003
SP  - XX, 211 S. : Ill., graph. Darst.
PY  - 2015
N1  - Aachen, Techn. Hochsch., Diss., 2015
AB  - Torrefaction is a mild pyrolysis of lignocellulosic biomass at a material temperature of about 250°C to 300°C. The objective of this process is the conversion of biomass to a solid energy carrier, which is similar to coal.In this thesis torrefaction of beechwood is investigated since this is commercially available in quite constant quality. The dependency of different product properties on the torrefaction degree is identified. These properties are heating value, energy yield, elemental composition, grindability, moisture uptake (short-term and long-term) and shrinkage of macroscopic particles. Additionally, special emphasis is placed on determination of the reaction enthalpy. Different experimental setups are used and special evaluation methods are developed. For macroscopic particles an exothermal reaction enthalpy of approximately 100 J/g is measured at a mass reduction of the dry solid of 25
LB  - PUB:(DE-HGF)11
DO  - DOI:10.18154/RWTH-2015-03003
UR  - https://publications.rwth-aachen.de/record/479297
ER  -