Setting the standard for biofuels
The EC-funded BIONORM project was set up to develop the market for biofuels through the adoption of an appropriate and robust quality assurance system. In practical terms that goal was translated in extensive sampling work in order to define and test a series of mechanical, physical and chemical fuel characteristics. The characteristics included moisture content and bulk density as well as sulphur and chlorine content. Out of all the characteristics, moisture content is considered a primary property throughout the solid biofuel supply chain. Closely linked to moisture content is the bulk density, which influences space and storage and volume-based payments. Project partners evaluated a series of methods for the measurement of moisture content and bulk density, applicable to solid biofuels. The different approaches were assessed according to their reproducibility and performance. The gas chromatography - mass spectrometry (GM-MS) method was characterised as one of the most promising as a reference method, even though optimisation would be required. Other methods included freeze-drying and oven-drying. There is still a need for further information exchange in the biofuel sector and the project partners are keen to enter into collaboration deals with stakeholders. The overall aim is to define the clear needs of the biofuel sector for quality standards and benchmarking.
