Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia

CATALYTIC CRACKING OF SUNFLOWER SEED OILKN-1Strizhak P.E., Tripolskyi A.I., Eremenko V.E., Ivashchenko T.S., Busko A.O.L.V. Pisarzhevsky Institute of Physical ChemistryNational Academy of Sciences of Ukrainepr. Nauki 31, Kiev, Ukraine, 03039pstrizhak@hotmail.comHeterogeneus catalytic cracking of vegetable oil produces valuable raw materials,which can be used in the chemical and petrochemical industry. Here we report astudy of catalytic cracking of sunflower seed oil over various solids, particularly,alumina or zeolites supported metals and metal oxides. Catalytic cracking has beenperformed in batch at atmospheric preassure in temperature range of 320-420°C.Products were analyzed by a gas chromatograph (HP-1MS, 25 m x 0.2 mm x0.33 μm) coupled to Shimadzu mass spectrometer.We found that depending on a catalyst a yield of liquid phase that containsproducts of cracking reaches 80%. The liquid phase contains more than 200 differentchemical compounds. Among those compounds approximately 50 were found atconcentrations more than 0.1% in liquid phase. Mixture of linear hydrocarbons is themain product of catalytic cracking. The yield of linear hydrocarbons reaches 60%.The liquid phase contains 5-30% of oxygen containing species. Using alumina as acatalyst support leads to a decrease of oxygen containing species in products ofcracking. Yield of cyclic compounds is in the range of 5-15%. It is slightly lower formetal containing catalysts comparing to pure γ-Al 2 O 3 or zeolites. Yield of aromaticcompounds was found less than 2% for all catalysts.We discuss possible chemical reactions responsible for catalytic cracking ofvegetable oil. Our studies highlight pathways of the vegetable oil cracking indicatinghow properties of catalyst affect yield of various products of the process.Acknowledgements:The work is supported by the grants of the National Academy of Sciences ofUkraine and the Ministry of Education and Science of Ukraine.15