May 2016

Process Engineering and Optimization

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

A promising route to obtain bio-gasoil (bioGO) or hydrotreated vegetable oil (HVO) is the catalytic coprocessing of vegetable oil with diesel oil in a conventional hydrotreating unit.

A promising route to obtain bio-gasoil (bioGO) or hydrotreated 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 hydrodesulfurization 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, cetane index, etc.) and the main products and byproducts formed (principally, n-paraffin and propane). A commercial NiMo/Al2O3 hydrotreating catalyst was used, as well as a high concentration of waste veget

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