Fuels
Fuelling technology
Improved biogas refuelling infrastructureThe gas supplier company AGA Gas AB has provided a new, innovative, flexible and mobile fuel supply system. This is a remote-monitored system with swap-body fuel units that are easy to replace; a system of great importance in a region like Stockholm lacking a natural grid. AGA offers a 24-hours a day service level which guaranties good functioning of the filling stations at all times.
Optimisation of the bio-diesel collection systemIn order to do the collection of used cooking oil from restaurants in an efficient and comfortable way, collection is carried out using special 20 l buckets. Full buckets are exchanged for empty ones each month. The logistics have proved to be very flexible, as the number of buckets per restaurant are adjusted to the quantity of used cooking oil per month. If required, the restaurants are provided with additional buckets. By using small collecting pails instead of big barrels, a conventional van has proved to be suitable for the collection, particularly for restaurants that are situated in the city centre with narrow lanes and only few parking areas.
Collected cooking oil is stored in a solar heated 10.000 l tank, that is regularly emptied and the cooking oil being transported to the biodiesel plant about 50 km from Graz. The technology for the conversion of used cooking oil to biodiesel was developed by the University of Graz together with Biodiesel International (BDI) the know how leader in this field.
For more information se Evaluation Report WP12
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