Hydrocracking of Vegetable Oil on BoronContaining Catalysts: Effect of the Nature and Content of a Hydrogenation Component
Статья (Full article),
Catalysis in Industry
, E-ISSN: 2070-0555
||singlestage hydrocracking, vegetable oil, supported catalysts, boratecontaining alumina, renew
able diesel fuel
Chumachenko V. A.
Lavrenov A. V.
Buluchevskii E. A.
Arbuzov A. B.
Gulyaeva T. I.
Drozdov V. A.
Institute of Hydrocarbon ProcessingRussian Academy of SciencesOmskRussia
Dostoevsky State UniversityOmskRussia
Catalysts based on metals (Pt, Pd) and metal oxides (NiO, Co3O4, MoO3, WO3), supported on the
surface of boratecontaining aluminum oxide (B2O3–Al2O3), in the hydrocracking of sunflower oil at a tem
perature of 400°C, a pressure 4.0 MPa and a mass hourly space velocity MHSV 5.0 h–1 are compared. H2
TPR and IR spectroscopy of adsorbed CO and ESDR show that the hydrogenation catalyst components are
, a mixture of Ni2+ + Ni0
, Co2+ + Co0
, or a mixture of the highest and partially reduced oxides of
Mo and W. It is established that catalysts containing Pt, Pd, NiO and Co3O4, ensure complete oil hydrode
oxygenation. The main oxygen removal reactions in Pt and Pdsystems are decarboxylation and hydrode
carbonylation. For catalysts with NiO and Co3O4, characteristic reactions are reduction and methanation.
The highest yield of the diesel fraction was obtained on Pt/B2O3Al2O3 catalysts with metal contents of 0.3–
1.0 wt %. Along with nalkanes, the diesel fractions obtained on these catalysts include cycloalkanes and
isoalkanes (up to around 40 wt %) and aromatic hydrocarbons present in trace amounts. Hydrocracking
on the Pt system at 400°C for 20 h with MHSV of 1.0 h–1 produces a diesel fraction with a yield of at least
82.0 wt % and the content of isoalkanes at least 76.1 wt %