| 摘要 |
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 C-C, which can be used for producing motor fuels and unsaturated monomers. Catalyst for producing aliphatic hydrocarbons from rapeseed oil contains Pt, AlOand additionally Sn in following proportions, wt%: Pt - 0.1-1, Sn - 0.24-1.2, AlOis 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 hin 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 C-C, 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 |
