title: Hydroprocessing of sunflower oil-gas oil blends over sulfided Ni-Mo-Al-zeolite beta composites.
abstract: Mixtures of sunflower oil and a straight run gas oil in the diesel fuel range were hydroprocessed over sulfided NiO(3%)-MoO3(12%)-γ-Al2O3 incorporating 0, 15 or 30 wt.% zeolite beta (BEA). The studies were carried out at 320-350 °C; 30-60 bars, and weight hourly space velocities (WHSV), 1-4 h(-1). Catalyst containing 30% BEA achieved nearly 100 % conversion of the vegetable oil into hydrocarbons at 330 °C, 60 bars and a WHSV of 2 h(-1) compared to 95.5% by the Ni-Mo-γ-alumina catalyst without BEA. Hydroprocessing with blends containing oleic acid revealed that the catalysts were able to transform the acid into hydrocarbons. An analysis of the ratios of the n-C18 and n-C17 paraffins formed from the vegetable oil at different process conditions revealed that the catalyst containing 15% BEA was most active for hydrodeoxygenation. The gas oil-hydrodesulfurization activity of the Ni-Mo-Al2O3 was enhanced by the addition of BEA by more than 10%.
authors.affiliation: Department of Chemistry, Anna University, Chennai 600025, India.
authors.forename: T M
authors.initials: TM
authors.lastname: Sankaranarayanan
authors.forename: M
authors.initials: M
authors.lastname: Banu
authors.forename: A
authors.initials: A
authors.lastname: Pandurangan
authors.forename: S
authors.initials: S
authors.lastname: Sivasanker
mesh_terms: D000535:Aluminum / Q000737:chemistry; D001709:Biotechnology / Q000379:methods*; D002384:Catalysis; D005227:Fatty Acids / Q000032:analysis; D005740:Gases / Q000737:chemistry*; D005742:Gasoline / Q000032:analysis; D006865:Hydrogenation; D008982:Molybdenum / Q000737:chemistry; D009532:Nickel / Q000737:chemistry; D010087:Oxides / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*; D013455:Sulfur / Q000302:isolation & purification; D000074242:Sunflower Oil; D014961:X-Ray Diffraction; D017641:Zeolites / Q000737:chemistry*
chemical_list: D005227:Fatty Acids; D005740:Gases; D005742:Gasoline; D010087:Oxides; D010938:Plant Oils; D013440:Sulfides; D000074242:Sunflower Oil; D017641:Zeolites; D013455:Sulfur; D009532:Nickel; D008982:Molybdenum; D000535:Aluminum