SPECIFICATIONS FOR PYROLYSIS LIQUIDS
The commercialization of biomass-derived pyrolysis liquids for use
in heat and power applications depends on succesfully providing a
fuel of acceptable quality to an end user at a competitive price.
One of the aims of this project was to derive specifications for biomass
derived pyrolysis liquids, based on a consensus between equipment
providers and the liquids producers. Five basic properties (homogeneity,
water content, solids content, stability, flash point) for the liquids
are used as the primary criteria for pyrolysis liquid evaluation.
Specific values are proposed to ensure that pyrolysis liquids meet
a minimum grade acceptable for use as a fuel oil in boilers. The aim
is to ensure that a realistic set of specifications are determined
to allow the introduction into existing fuel infrastructures and markets.
A consensus on analytical methods should also be created. Finally,
the standardization of pyrolysis liquid specifications should be carried
out. This work has been initiated in 2003 as a CEN BT/WG 149 Alternative
Fuels under the coordination of SIS, Sweden.
The aim was to collect information in the following areas:
- Existing standards for specifications, classification systems,
test methods, etc.. for liquid and gaseous alternative fuels;
- Ongoing and planned work on these standards;
- Setting priorities for future work.
CEN was recommended to start working also on the pyrolysis oil standards
as alterntative fuel for stationary applications.
At the plenary meeting of CEN/TC 19 June 2005 on standardization
of liquid and gaseous alternative fuels the CEN/BT/WG 149 recommendations
were included in the workplan.
and standards for pyrolysis liquids. End-user requirements and specifications
Link to: Analytical
Link to: Standardization
of pyrolysis liquid specifications