PRODUCTION OF PARAFFINIC FUELS FROM RENEWABLE MATERIALS BY A CONTINUOUS HYDROTREATING PROCESS COMPRISING A HYDROGEN PRETREATMENT STEP

摘要

The method involves providing hydrogen in excess in a reactor. The reactor is arranged with a fixed bed having a set of catalytic zones (R1) that is placed in series. The set of catalytic zones includes a hydro-treating catalyst. A mixture of hydrocarbons is heated to a temperature ranging between 140 and 250 degrees Celsius. A set of recycled upstream catalytic zones is arranged with a specific mass ratio. A partial load is introduced in the former catalytic zones.