The refinery and its product flows are illustrated in figure A   Products F, G and H: Determining products     from garages, wood-preservation processes, and food industry   Waste hydrocarbons                                 Products I, J and K:                     Duel oil naphtha,      and kerosene     Crude oil Residues               Products O, P and Q   Figure A.1 The expanded product systems related to the refinery/cracking installation Process F: Garage Process G: Wood- preservation Process H: Food industry Process I₁: Intermediate treatment Refinery/cracking installation Process I₂: Upgrading and transport Processes L, M and N: Processes displaced by residues (most sensitive suppliers) Processes O, P and Q, in which the residues are utilised Process D: Production of   crude oil