title: Hydrotreatment of bio-oil over Ni-based catalyst.
abstract: Inexpensive non-sulfided Ni-based catalysts were evaluated for hydrotreatments using phenol as model compound. HZSM-5, a zeolite with different ratio of Si/Al and γ-Al(2)O(3) were impregnated with Ni(NO(3))(2) · 6H(2)O and calcined at 450 °C. Conversion rates and product distribution for treatment of phenol at 160-240 °C in the presence of catalysts with nickel loads of 6, 10, 14 and 17 wt.% were determined. Phenol conversion was highest (91.8%) at 240 °C in the presence of HZSM-5(Si/Al = 38) loaded with 10% Ni. When hydrotreatment was carried out with bio-oil obtained from pyrolysis of pine sawdust under the optimal conditions determined for phenol, the pH of bio-oil increased from 2.27 to 4.07, and the hydrogen content increased from 6.28 to 7.01 wt.%. The decrease in acidity is desirable for the use of upgraded bio-oil.
authors.affiliation: Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China.
authors.forename: Xinghua
authors.initials: X
authors.lastname: Zhang
authors.forename: Tiejun
authors.initials: T
authors.lastname: Wang
authors.forename: Longlong
authors.initials: L
authors.lastname: Ma
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhang
authors.forename: Ting
authors.initials: T
authors.lastname: Jiang
mesh_terms: D056804:Biofuels / Q000032:analysis*; D002384:Catalysis; D002849:Chromatography, Gas; D006863:Hydrogen-Ion Concentration; D009532:Nickel / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry; D010636:Phenols / Q000737:chemistry*; D013696:Temperature; D013818:Thermogravimetry; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction; D017641:Zeolites / Q000737:chemistry*
chemical_list: D056804:Biofuels; D010636:Phenols; D014867:Water; D017641:Zeolites; C035197:nickel nitrate; D009532:Nickel; D010100:Oxygen