Reusable Catalyst of KF/Mg-Al Layered Double for Biodiesel Conversion and Optimization using Bohn-Behnken Design

Suharto, Totok Eka and Kooli, Fethi and Ghazali, Sheikh Ahmad Izaddin Sheikh Mohd and Fatimah, Is (2022) Reusable Catalyst of KF/Mg-Al Layered Double for Biodiesel Conversion and Optimization using Bohn-Behnken Design. Bulletin of Chemical Reaction Engineering and Catalysis, 17 (3). pp. 497-507. ISSN 1978-2993

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This work aimed to synthesize a reusable catalyst of KF/Mg-Al layered double hydroxide (KF/LDH) for a microwave-assisted biodiesel conversion from rice bran oil (RBO). The LDH was synthesized by co-precipitation method of Mg and Al precursors with additional surfactant of cetyl trimethyl ammonium followed by hydrothermal method, for furthermore, an impregnation procedure was applied to combine KF with LDH by using impregnation method. Instrumental analysis of materials was performed by XRD, gas sorption analysis, SEM-EDX, TEM and XPS method. Effect of KF loading onto LDH on the specific surface area and solid basicity was also studied. From the characterization by XRD, it can be concluded that the impregnation increased specific surface area of LDH without any structural destruction, which was also confirmed by the lattice fringe comparison by HRTEM analysis and surface analysis by XPS. The specific surface area enhancement is in line with the increasing solid basicity which directly enhanced the catalytic conversion of RBO into biodiesel. Statistical optimization of the use of KF/LDH was conducted by response surface methodology of Box-Behnken Design for the range of 2–4 g/100 mL of
catalyst dose, 3–8 of the methanol to oil ratio, and 10–30 min of reaction time. It was revealed that all factors are
significantly affect the yield. The KF/LDH catalyst is also reusable as it does not loss the activity until 5th cycles.

Item Type: Artikel Umum
Additional Information: Published paper in BCREC
Subjects: Q Science > QD Chemistry
Divisi / Prodi: Faculty of Industrial Technology (Fakultas Teknologi Industri) > S1-Chemical Engineering (S1-Teknik Kimia)
Depositing User: Totok Eka Suharto
Date Deposited: 05 Jan 2023 00:55
Last Modified: 05 Jan 2023 00:55

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