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Biodiesel Production from N. oculata Microalgae Lipid in the Presence of Bi2O3/ZrO2 Catalysts

Abd Rahman, Nurul Jannah ; Ramli, Anita ; Jumbri, Khairulazhar ; Uemura, Yoshimitsu

Waste and biomass valorization, 2020-02, Vol.11 (2), p.553-564

Dordrecht: Springer Netherlands

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Título:
Biodiesel Production from N. oculata Microalgae Lipid in the Presence of Bi2O3/ZrO2 Catalysts
Autor: Abd Rahman, Nurul Jannah ; Ramli, Anita ; Jumbri, Khairulazhar ; Uemura, Yoshimitsu
Assuntos: Algae ; Ammonia ; Biodiesel fuels ; Biofuels ; Biomass ; Bismuth oxides ; Bismuth trioxide ; Carbon dioxide ; Catalysts ; Cetane number ; Chemical synthesis ; Diesel ; Engineering ; Environment ; Environmental Engineering/Biotechnology ; Industrial Pollution Prevention ; Iodine ; Lipids ; Mixed oxides ; Original Paper ; Oxides ; Physicochemical properties ; Renewable and Green Energy ; Sol-gel processes ; Transesterification ; Waste Management/Waste Technology ; Zirconium dioxide
É parte de: Waste and biomass valorization, 2020-02, Vol.11 (2), p.553-564
Descrição: Mixed oxides catalyst has become a recent focus for production of biodiesel from the third-generation biomass. In this study, ZrO 2 was synthesized by using sol–gel method with hydrothermal assisted. Mixed oxides catalysts were then prepared via incipient wetness impregnation of Bi 2 O 3 (5, 15 and 30 wt%) on the synthesized ZrO 2 . Physicochemical properties of the catalysts were evaluated using different characterization techniques and their performances were investigated in the transesterification of marine microalgae of Nannochloropsis oculata to biodiesel. XRD diffractograms showed the presence of monoclinic (m) and tetragonal (t) phases of ZrO 2 in all synthesized catalysts. It was found that the composition of the ZrO 2 phases depend strongly on the Bi 2 O 3 content. BET analyses showed that the total surface area of ZrO 2 decreased with increased Bi 2 O 3 content due to the pore filling effect. CO 2 -TPD and NH 3 -TPD analyses indicated that all the catalysts possessed both acidic and basic properties with different intensities. The highest FAME yield was obtained using 5Bi 2 O 3 /ZrO 2 when the test was conducted at optimum reaction conditions of 20 wt% of catalyst loading and methanol to biomass ratio of 90:1 (mL/g) at 80 °C for 6 h. The synthesized biodiesel met the specifications of biodiesel standard for cetane number and iodine value except for the oxidative stability. Graphical Abstract
Editor: Dordrecht: Springer Netherlands
Idioma: Inglês

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Biodiesel Production from N. oculata Microalgae Lipid in the Presence of Bi2O3/ZrO2 Catalysts

Abd Rahman, Nurul Jannah ; Ramli, Anita ; Jumbri, Khairulazhar ; Uemura, Yoshimitsu

Dordrecht: Springer Netherlands

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