Catalytic coprocessing of used cooking oil with straight-run gasoil in a hydrotreating pilot plant

摘要

A promising route to obtain bio-gasoil (bioGO) or hy-drotreated vegetable oil (HVO) is the catalytic coprocessing of vegetable oil with diesel oil in a conventional hydrotreating unit. Here, the catalytic cohydroprocessing of vegetable waste cooking oil with straight-run gasoil (SRGO) in a diesel hy-drodesulfurization pilot plant is analyzed. Particular attention is paid to the influence of waste oil on the pilot plant operation (increase of temperature), product quality (density at 15°C, ce-tane index, etc.) and the main products and byproducts formed (principally n-paraffin and propane).