40055

Thermoeconomic analysis of three biomass upgrading processes integrated with a municipal CHP plant

Favoritar este trabalho

The objective of this work is to assess the thermoeconomics of three biomass upgrading processes using wood pellets, torrefied wood pellets and pyrolysis slurry (a mixture of pyrolysis char and oil). By process simulation, all processes were integrated with a communal combined heat and power plant. Previous work of the authors was used as input for the calculation of the systems´exergy flows. The economic data for process assessement is extracted from the open literature and has been combined with the exergy data following the specific exergy costing approach in order to perform the thermoeconomic analysis. The integration of pyrolysis slurry, torrefied wood pellets and wood pellets production increases the exergetic efficiency of the systems by 22%, 26% and 31%, respectively. This makes wood pellets the most efficient integration option. However, from from an economic viewpoint, the integration of pyrolysis slurry production performs best under the projected price scenario.