Process and apparatus for producing hydrocarbons from feed-stocks comprising tall oil and terpene-compounds

摘要

The invention relates to a process for producing hydrocarbon components, comprising: providing a feedstock comprising tall oil and terpene-based compounds; subjecting the feedstock and a hydrogen gas feed to a hydroprocessing treatment in the presence of a hydroprocessing catalyst to produce hydrocarbon components including n-paraffins, and subjecting the hydrocarbon components including n-paraffins to isomerisation in the presence of a dewaxing catalyst to form a mixture of hydrocarbon components. The invention also relates to an apparatus for implementing the process. The invention further relates to a use of the hydrocarbon components produced by the process as a fuel or as an additive in fuel compositions. The invention also relates to a use of a NiW catalyst on a support selected from Al2O3, zeolite, zeolite-Al2O3, and Al2O3—SiO2 for producing fuel or an additive for fuel compositions from a feedstock comprising tall oil and terpene-based compounds.

主权项

1. A process for producing hydrocarbon components, comprising:
purifying a crude tall oil to reduce metal ions, sulphur, phosphorous and lignin residuals in the crude tall oil; combining a crude sulphate turpentine obtained from kraft pulping of wood with the purified crude tall oil to produce a feedstock consisting of said purified crude tall oil and said crude sulphate turpentine; hydroprocessing the feedstock in the presence of hydrogen and a NiO/MoO3 catalyst on an Al2O3 support, at a temperature of about 280° C. to about 500° C. and at a pressure of about 30 bar to about 200 bar, to produce hydrocarbon components comprising n-paraffins; and isomerizing the hydrocarbon components comprising n-paraffins in the presence of hydrogen and a NiW catalyst on a zeolite-Al2O3 support, at a temperature of about 280° C. to about 500° C. and a pressure of about 30 bar to about 200 bar, to form a mixture of hydrocarbon components.