CATALYST AND METHOD OF PRODUCING ALIPHATIC HYDROCARBONS FROM RAPESEED OIL Russian patent published in 2016 - IPC B01J23/62 B01J21/04 C10G3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical engineering, namely to method of producing alkanes and alkenes from renewable raw material, oils and fats of vegetable origin and more specifically relates to heterogeneous catalytic conversion of rapeseed oil to narrow fractions C₃ -C₁₉₊, which can be used for producing motor fuels and unsaturated monomers. Catalyst for producing aliphatic hydrocarbons from rapeseed oil contains Pt, Al₂O₃ and additionally Sn in following proportions, wt%: Pt - 0.1-1, Sn - 0.24-1.2, Al₂O₃ is rest. Method of converting rapeseed oil is carried out in presence of said heterogeneous catalyst at high temperature of 400-460 °C and rapeseed oil volume rate feed of 0.6-2.4 h^-1 in hydrogen medium at pressure of 40-50 atm. If necessary, catalyst is first treated with hydrogen at temperature of 100-500 °C before entry into contact with rapeseed oil.

EFFECT: higher selectivity of conversion of rapeseed oil into narrow alkane-olefin fractions C₃ -C₁₉₊, higher yield at high purity of produced fractions of aliphatic hydrocarbons and increased output of by-products while minimising number of process steps.

3 cl, 3 tbl, 18 ex