Conference paper
Assessment of a novel alder biorefinery concept to meet demands of economics feasibility, energy production and long term environmental sustainability
Department of Chemical and Biochemical Engineering, Technical University of Denmark1
CHEC Research Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark2
Center for BioProcess Engineering, Department of Chemical and Biochemical Engineering, Technical University of Denmark3
A biorefinery concept based on alder tree plantations on degenerated or marginalized soils is developed to illustrate how it is possible to comply with indicators of economic feasibility, fossil fuel depletion concerns and long term sustainability issues. The biorefinery is based on grey alder (Alnus incana), and provide the following end products: Heat and power, bio-pharmaceuticals (diaryl heptanoids), Bio-SNG, ethyl acetate, replenished soils and a carbon sink.
Several system setups were examined and compared. The optimal design obtained the following production characteristics: Total system Energy Return on energy Invested 4.4, total system Exergy Return on exergy Invested 3.5, Net Energy Output 78 GJ/ha/year, Net Exergy Output 50 GJ/ha/year, Net carbon sequestration 0.8 ton CO2-eq/ha/year, Total product value 2030 euro/ha/year and Net Dry Matter Removal 90%.
| Language: | English |
|---|---|
| Publisher: | ETA-Florence Renewable Energies |
| Year: | 2012 |
| Pages: | 700-707 |
| Proceedings: | 20th European Biomass Conference and exhibition |
| ISBN: | 8889407549 and 9788889407547 |
| Types: | Conference paper |
| DOI: | 10.5071/20thEUBCE2012-2AO.7.5 |
| ORCIDs: | Thomsen, Tobias , Ahrenfeldt, Jesper and Thomsen, Sune Tjalfe |
