Hydroprocessing of soybean oil on nickel-phosphide supported catalysts. (1st January 2015)

• Record Type: Journal Article
• Authors: Zarchin, Ruby; Rabaev, Moshe; Vidruk-Nehemya, Roxana; Landau, Miron V.; Herskowitz, Moti
• Is Part Of: Fuel. Volume 139(2015)
• Page Start: 684
• Page End: 691
• Publication Date: 2015-01-01
• Subjects: Vegetable oil -- Hydroprocessing -- Fuels -- Ni2P/SiO2 -- Ni2P/HY; Fuel -- Periodicals; Coal -- Periodicals; Coal; Fuel; Periodicals; 662.6
• DOI: 10.1016/j.fuel.2014.09.053
• Languages: English
• ISSNs: 0016-2361

Abstract

Highlights: Ni2 P supported catalysts display high performance in hydrodeoxygenation of soybean oil. Ni2 P/HY hydrocracked and isomerized the paraffinic product. Ni2 P/HY hydrocracking activity diminished with time on stream when exposed to water. Abstract: Ni2 P/silica and Ni2 P/HY were prepared and for the first time tested in hydroprocessing of soybean oil. The content of Ni2 P in each catalyst was about 25 wt%. The experiments conducted in a trickle-bed reactor operated at conditions normally used in such processes, yielded high hydrodeoxygenation (HDO) activity of both catalysts. No apparent hydrocracking activity was recorded with Ni2 P/silica while Ni2 P/HY displayed high hydrocracking and isomerization activity that diminished with time on stream. Characterization of the fresh and spent Ni2 P/HY indicated that exposing the catalyst to water vapors generated by hydrodeoxygenation reduced the acidity of the catalyst thus reducing its hydrocracking activity. After removal of >99.5% oxygen by HDO of soybean oil and separation of water vapors, the Ni2 P/HY material displayed stable operation during >250 h on stream yielding up to 50 vol% of light fraction boiling out at <250 °C.