ASIGNACIÓN ENERGÉTICA DE LOS CONSUMOS DE ENERGÍA Y EMISIONES DE PRODUCTOS PETROLÍFEROS EN REFINERÍA EN EL MARCO DEL ACV

Abstract

Several products with different characteristics and uses are usually obtained from oil refining process (olefins, propane, butane, gasoline, kerosene, diesel, paraffin, asphalt, etc.). Allocation of proportional impacts of energy consumption and emissions for each product is a difficult task because many of them are correlated. When performing the life cycle assessment (LCA) of petroleum products, inventory data (input and output collection of mass and energy) are generally global compilations and they are not partitioned into sub-processes, but handled as a black box. Therefore, energy consumption and emissions are allocated according to the final product distribution The most allocation methods used for petroleum products are often based on relationships of mass, energy content or market values. This study highlights the results of allocation of energy consumption and emissions of most usual petroleum products in a Spanish refinery, based on literature review. Results highlight the need of real data from refinery to obtain more adjusted results, as well as the possible partial subdivision of the system as a solution. Keywords: LCA; petroleum products; refinery; energetical allocation