Hydroconversion of Sunflower Oil on Pd/SAPO-31 Catalyst
, E-ISSN: 1873-7153
||Biodiesel, Hydroconversion, SAPO-31, Sunflower oil
Kikhtyanin Oleg V.
Rubanov Anton E.
Ayupov Artem B.
Echevsky Gennadii V.
Boreskov Institute of Catalysis SB RAS
This work presents results from the hydroconversion of sunflower oil on the bifunctional Pd/SAPO-31 catalyst as a perspective technological way for single-stage production of hydrocarbons in the diesel fuel range that have improved low-temperature properties. Transformation of sunflower oil was performed at temperatures of 310–360 °C and WHSV = 0.9–1.6 h−1, under a pressure of 2.0 MPa in a laboratory flow reactor. Gaseous and liquid reaction products were analyzed by GC using an internal standard method as well as by 1H and 13C NMR spectroscopy. At temperatures 320–350 °C, liquid reaction product contained only hydrocarbons, the main components were identified as C17 and C18n-alkanes and i-alkanes. Pd/SAPO-31 catalyst demonstrated high initial activity for the hydroconversion of the feed and good isomerizating properties, but its deactivation was followed after several hours of operation. Physico-chemical properties of both fresh and spent catalysts were compared. The influence of reaction conditions on the composition of the reaction products is also discussed.