Storskalaprojekt med forsyning af AFME biodiesel i ... - Trafikstyrelsen
Storskalaprojekt med forsyning af AFME biodiesel i ... - Trafikstyrelsen
Storskalaprojekt med forsyning af AFME biodiesel i ... - Trafikstyrelsen
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The storage and distribution system were also optimised. Storage facilities on Aarhus<br />
harbour were modernised with respect to handling of <strong>biodiesel</strong> and were certified by<br />
relevant public authorities. All tanks in commercial petrol stations and for the<br />
participating bus fleets were cleaned prior to the test, to reduce the risk of microbial<br />
growth in the tanks. Biodiesel degrades more easily than fossil diesel if the right<br />
growth conditions are present.<br />
Plans for distribution and exchange of fuels were made between the oil companies and<br />
co-ordinated within the framework for monopoly legislation. Administrative procedures<br />
were created for internal reporting within the consortium, as well as to the public<br />
authorities. Information was also provided to all personnel in the distribution chain. A<br />
consumer evaluation was carried out half way through the project and an evaluation<br />
was also carried out by the oil companies <strong>af</strong>ter completion of the practical distribution<br />
phase.<br />
The start of the project was marked by a good deal of uncertainty and the practical<br />
demonstration was delayed compared with the original plan. This was mainly due to<br />
the amendments in the construction of storage facilities, but also as ensuring a robust<br />
winter quality of B5, which maintained all specifications, was considerably more<br />
demanding than expected.<br />
The thorough preparation has however meant that the project has been problem free<br />
for the oil companies, motorists and bus companies. Not a single fault or request for<br />
compensation, which can be traced to the fuel, has been received from end users. A<br />
study of the fuel accounts for Århus Sporveje and De Gronne Busser shows that there<br />
is no change in performance or fuel consumption as a result of the inclusion of 5%<br />
<strong>biodiesel</strong> in fossil diesel.<br />
In the use of pure biofuel (B100), two of the tankers used to transport pure <strong>biodiesel</strong><br />
from Daka Biodiesel to the storage facilities in Aarhus, registered leaks. The damage<br />
concerned vehicles with inbuilt pumps, where a seal was used which was not resistant<br />
to pure <strong>biodiesel</strong>. Biodiesel in pure form is known to <strong>af</strong>fect certain rubber and plastic<br />
materials, as well as some soft metals, when used over a longer period of time. No<br />
negative effects were observed <strong>af</strong>ter the <strong>biodiesel</strong> was blended with fossil diesel. This<br />
should however be taken into account in the distribution chain.<br />
Large changes in fuel prices throughout the project have led to increased costs of<br />
purchasing biofuel in comparison with the budget. Extra funds from the Agency for<br />
Road S<strong>af</strong>ety and Transport Agency made continuation of the planned distribution<br />
period possible, and in fact allowed an expansion of the time.<br />
The project has established and tested realistic logistics for s<strong>af</strong>e blending of <strong>AFME</strong> and<br />
distribution of B5 on a large scale basis. It has furthermore demonstrated that<br />
<strong>biodiesel</strong> made from animal fats can be used as a bio-component in traditional fossil<br />
diesel for sale in Danish petrol stations as well as for fleet use, without any negative<br />
consequences for functionality or fuel consumption. Use of <strong>AFME</strong> as a bio-component<br />
in commercial petrol stations or fleets will however require a number of relatively<br />
large changes in the distribution chain.<br />
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