In Scenario 2, the core process is also the production of biodiesel
but in Spain, which starts with the UCO collection, and the subsequent
transport to the biodiesel plant. After UCO pre-treatment and
conditioning, transesterification takes place in a closed reactor, by
using a catalyst previously mixed with methanol. The production of
both methanol and catalyst was taken into account together with
their respective transport. Distribution of the biodiesel in Spain by
lorry was also considered.