Pyrolysis method of bioenergy production from wooden biomass
The global tendency in respect of bioenergy production is Co-Generation or combined heat and power (CHP) production – it is the use of a heat engine or power station to generate electricity and useful heat at the same time. Pyrolysis method allows CHP production of electricity and heat from wooden biomass with higher commercial efficiency in comparison with CHP technical solutions based on burning.
So far, pyrolysis has not been widely used for treatment of wooden biomass, since there are plenty of CHP technical solutions based on burning classified as “State of Art” – term that refers to the highest level of general development, as of a device, technique, or scientific field achieved at a particular time.
So far, pyrolysis has not been widely used for treatment of wooden biomass, since there are plenty of CHP technical solutions based on burning classified as “State of Art” – term that refers to the highest level of general development, as of a device, technique, or scientific field achieved at a particular time.
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Why Pyrolysis?
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Capital Expenditures (CAPEX) per 1 MW of electricity installed power
- Burning: 3.5 – 4 M € (Proven)
- Pyrolysis: 2- 2.5 M € (Estimated)
- Burning: 1.5-2 tons (Proven)
- Pyrolysis: 0.8-1 ton (Proven)
Fast Pyrolysis Reactor (FPR) Prototype
Fast Pyrolysis Reactor (FPR) prototype has been manufactured, installed and tested at Serbian BLTC and it confirms initial assumptions - pyrolysis is more efficient treatment of wooden biomass than burning:
Measured results of prototype experimental performance indicate that FPR should be the basis for Co-Generation that serves energy requirements of:
Fast Pyrolysis Reactor (FPR) prototype has been manufactured, installed and tested at Serbian BLTC and it confirms initial assumptions - pyrolysis is more efficient treatment of wooden biomass than burning:
- Consumption of biomass is 1 ton/hour (confirmed by AEROLAB);
- FPR delivers 600 cubic meters of synthetic gas with caloric value of 14.12 MJ/m3 (measured and confirmed by AEROLAB) – delivered quantity ensures that gas could run turbine/generator of 1 MW installed power concerning electricity production;
- FPR was heated up to 600 degrees C (confirmed by AEROLAB)- this heat could be delivered upon cooling to ending users, or used for additional electricity production through ORC;
- 1 ton of biomass ended in 200 kg of charcoal (C percentage 56.55%, caloric value 22,032 kJ/kg, measured and confirmed by JUGOINSPEKT);
Measured results of prototype experimental performance indicate that FPR should be the basis for Co-Generation that serves energy requirements of:
- Wood processing plants – it is attractive solution since their cost of biomass is lower (generated on the site!), and the continues demands for heat and electricity;
- Small or Medium and Large Industrial Plants – adjusted FPR, or cascade installation easily meets industrial energy requirements (from 0.5 MW and up of electricity installed power);
- ESCO providers due to lower CAPEX and OPEX and higher return on investment - 120 EUR of biomass OPEX (SEE region) delivers approx. 223 EUR from regional sales of electricity. heat and charcoal (85 % ROI per hour)!