The pyrolysis process has proved to be able to produce high yields
of liquid products which can be shipped, stored and utilised more
economically than solid fuel systems in the small to medium size class
(50 kW to 1 MWth). However, to this date there have been no long term
experiences with pyrolysis fuel use in this size class due to lack
of sufficient quantities of suitable quality fuel. Therefore, it is
envisaged that to be able to enter into heating fuel markets, the
new liquid biofuel, pyrolysis oil, chain has the following general
To be competitive economically, with chips, pellets and light
fuel oil in heat production, in a new European business area;
To fulfil specifications required by users.
The following specific scientific objectives are defined to
solve major technical problems and to address the principal economic
Generation of process performance data of pilot-scale PO production;
Definition of three classes of preliminary PO fuel specifications.
Specifications are defined for the following applications: replacing
heavy fuel oil in large boilers (2-10 MWth), replacing light fuel
oil in intermediate size boilers (0.2-1 MWth) and replacing light
fuel oil in small (10-20 MWth) boilers;
Generation and reporting of performance and emission data of various
boilers, which are typically used in industry, in institutional
buildings (schools, hospitals etc.) and in single houses, in long
term tests. Generation of fundamental PO combustion data to assist
in developing higher quality fuels with less emissions is performed;
Improvement in the PO fuel quality in pilot demonstration unit
scale. The fuel properties, which need most development, are homogeneity,
stability, solids content, pH, heating value and viscosity;
Improvement in the economic competitiveness of the bioenergy chain.
The target is to be able to produce close to fuel oil prices and
to compete with other renewable alternatives (chips, wood pellets).
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