Use of ZrO2 supported on bamboo leaf ash as a heterogeneous catalyst in microwave-assisted biodiesel conversion

Fatimah, Is; Rubiyanto, Dwiarso; Taushiyah, Ana; Najah, Fitri Badriatun; Azmi, Ulil; Sim, Yoke‐Leng

doi:10.1016/j.scp.2019.100129

Cited by 41 publications

(28 citation statements)

References 18 publications

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“…Generally, the preparation of these catalysts involves drying and combustion (in the range 350-900 °C) of biomass. In order to get more suitable catalysts, some ashes are used as a support for active components like the bamboo leaf and coal fly ashes for ZrO 2 [11] and calcined animal bone powder [12], respectively. Their preparation includes milling, impregnation of active components, drying and calcination.…”

Section: Introductionmentioning

confidence: 99%

Valorization of walnut shell ash as a catalyst for biodiesel production

et al. 2020

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The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, N 2 physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanol-to-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60°C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of TAG mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction.The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 °C.

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Section: Introductionmentioning

confidence: 99%

Valorization of walnut shell ash as a catalyst for biodiesel production

et al. 2020

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“…% catalyst weight. The catalyst exhibited reusability properties, as indicated by its relatively similar yields, initial rates, and turnover frequencies observed when fresh and reused catalysts were used [70].…”

Section: Zro 2 -Based Catalystsmentioning

confidence: 92%

Biodiesel Production Using Solid Acid Catalysts Based on Metal Oxides

et al. 2020

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The development of solid acid catalysts, especially based on metal oxides and different magnetic nanoparticles, gained much awareness recently as a result of the development of different nano-based materials. Solid acid catalysts based on metal oxides are promising for the (trans)esterification reactions of different oils and waste materials for biodiesel production. This review gives a brief overview of recent developments in various solid acid catalysts based on different metal oxides, such as zirconia, zinc, titanium, iron, tungsten, and magnetic materials, where the catalysts are optimized for various reaction parameters, such as the amount of catalyst, molar ratio of oil to alcohol, reaction time, and temperature. Furthermore, yields and conversions for biodiesel production are compared. Such metal-oxide-based solid acid catalysts provide more sustainable, green, and easy-separation synthesis routes with high catalytic activity and reusability than traditionally used catalysts.

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“…This state was maintained for 5 min and the yield (%) was calculated using the following equation (Eq. (3)) [2,14]:…”

Section: Biodiesel Characterizationmentioning

confidence: 99%

“…Table 3 shows the comparison of this method with other biodiesel production methods. This approach offered faster reaction time than microwave [2] and other biodiesel electrosynthesis method [6].…”

Section: Evaluation Of the Optimized Biodiesel Electrosynthesis Methomentioning

confidence: 99%

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Co-Solvent Free Electrochemical Synthesis of Biodiesel Using Graphite Electrode and Waste Concrete Heterogeneous Catalyst: Optimization of Biodiesel Yield

Wicaksono

Jati

Yanti

et al. 2021

Bull. Chem. React. Eng. Catal.

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This study optimized a co-solvent free electrochemical method for biodiesel synthesis using graphite electrode and waste concrete heterogeneous catalyst. Various parameters were evaluated, including: applied voltage (9.6, 14.4, 19.2 V), catalyst particle size uniformity (unfiltered and filtered with 150 mesh), and reaction time (15, 30, 120, 240 min). The results obtained 100% FAME content and 78.51% of biodiesel yield that were achieved at 14.4 V within 30 min using filtered catalyst and cooking oil feedstock. However, a slight decline was observed with the use of waste cooking oil. This optimized method offers a reliable and simple condition for mass biodiesel production. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Use of ZrO2 supported on bamboo leaf ash as a heterogeneous catalyst in microwave-assisted biodiesel conversion

Cited by 41 publications

References 18 publications

Valorization of walnut shell ash as a catalyst for biodiesel production

Valorization of walnut shell ash as a catalyst for biodiesel production

Biodiesel Production Using Solid Acid Catalysts Based on Metal Oxides

Co-Solvent Free Electrochemical Synthesis of Biodiesel Using Graphite Electrode and Waste Concrete Heterogeneous Catalyst: Optimization of Biodiesel Yield

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