title: Production of bio-hydrogenated diesel by catalytic hydrotreating of palm oil over NiMoS2/γ-Al2O3 catalyst.
abstract: Catalytic hydrotreating of palm oil (refined palm olein type) to produce bio-hydrogenated diesel (BHD) was carried out in a continuous-flow fixed-bed reactor over NiMoS2/γ-Al2O3 catalyst. Effects of dominant hydrotreating parameters: temperature: 270-420°C; H2 pressure: 15-80 bar; LHSV: 0.25-5.0 h(-1); and H2/oil ratio: 250-2000 N(cm(3)/cm(3)) on the conversion, product yield, and a contribution of hydrodeoxygenation (HDO) and decarbonylation/decarboxylation (DCO/DCO2) were investigated to find the optimal hydrotreating conditions. All calculations including product yield and the contribution of HDO and DCO/DCO2 were extremely estimated based on mole balance corresponding to the fatty acid composition in feed to fully understand deoxygenation behaviors at different conditions. These analyses demonstrated that HDO, DCO, and DCO2 reactions competitively occurred at each condition, and had different optimal and limiting conditions. The differences in the hydrotreating reactions, liquid product compositions, and gas product composition were also discussed.
authors.affiliation: Nanomaterials for Energy and Catalysis Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Klong Laung, Pathumthani 12120, Thailand; Center of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Atthapon
authors.initials: A
authors.lastname: Srifa
authors.affiliation: Nanomaterials for Energy and Catalysis Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Klong Laung, Pathumthani 12120, Thailand. Electronic address: kajornsak@nanotec.or.th.
authors.forename: Kajornsak
authors.initials: K
authors.lastname: Faungnawakij
authors.affiliation: Nanomaterials for Energy and Catalysis Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Klong Laung, Pathumthani 12120, Thailand.
authors.forename: Vorranutch
authors.initials: V
authors.lastname: Itthibenchapong
authors.affiliation: Nanomaterials for Energy and Catalysis Laboratory, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Klong Laung, Pathumthani 12120, Thailand.
authors.forename: Nawin
authors.initials: N
authors.lastname: Viriya-Empikul
authors.affiliation: Center of Excellence in Particle Technology, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Tawatchai
authors.initials: T
authors.lastname: Charinpanitkul
authors.affiliation: Center of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Suttichai
authors.initials: S
authors.lastname: Assabumrungrat
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D056804:Biofuels; D002384:Catalysis; D004220:Disulfides / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry*; D008982:Molybdenum / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D000073878:Palm Oil; D010938:Plant Oils / Q000737:chemistry*
chemical_list: D056804:Biofuels; D004220:Disulfides; D010938:Plant Oils; D000073878:Palm Oil; D009532:Nickel; D006859:Hydrogen; D008982:Molybdenum; D000537:Aluminum Oxide; C082964:molybdenum disulfide
keywords: Bio-hydrogenated diesel; Hydrodeoxygenation; Hydrotreating; NiMoS(2)/γ-Al(2)O(3) catalyst; Palm oil