PRODUCTION OF VAPOUR-CRACKING LOADS WITH A HIGH YIELD OF THE RESULTING ETHYLENE, PROPYLENE AND POLYMERS BY HYDROPROCESSING OF VEGETABLE OILS

摘要

The invention relates to a method for processing a load from a renewable source that comprises a hydroprocessing step in the presence of a fixed-bed catalyst, said catalyst including a hydro-dehydrogenation function and an amorphous substrate, at a temperature of between 50 and 450°C, under a pressure of between 1 and 10 MPa, at a hourly space rate of between 0.1 h-1 and 10 h-1 and in the presence of a total amount of hydrogen mixed with the load such that the hydrogen/load ratio ranges 50 to 1000 Nm3 of hydrogen / m3 of load, followed by the separation from the hydro-processed effluent from step a) of the hydrogen, gases and at least one hydrocarbon liquid effluent including at least 50 % of linear n-paraffins, and the vapour-cracking of at least a portion of the liquid hydrocarbon effluent from step b).