Optimization of lipid productivity by Citrobacter youngae CECT 5335 and biodiesel preparation using ionic liquid catalyst

Maymandi, Mahboobeh Ghasemi; Rahimpour, Farshad

doi:10.1016/j.fuel.2015.07.014

Cited by 10 publications

(1 citation statement)

References 41 publications

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“…The high cetane number, oxygen content, and low sulfur content of biodiesel can ensure industrial application and complete combustion. Tests − showed that, compared with ordinary diesel oil, using biodiesel can significantly reduce the toxicity of emitted gases, and the emissions of carbon dioxide, which could help mitigate global warming.…”

Section: Introductionmentioning

confidence: 99%

Design and Synthesis of Ionic Liquid Supported Hierarchically Porous Zr Metal–Organic Framework as a Novel Brønsted–Lewis Acidic Catalyst in Biodiesel Synthesis

Cai

et al. 2018

Ind. Eng. Chem. Res.

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A novel strategy of approximate ligand substitution was proposed to introduce ionic liquids (ILs) into the porous framework of metal−organic frameworks (MOFs). With this approach, an efficient Brønsted−Lewis acidic catalyst [(CH 2 COOH) 2 IM]HSO 4 @H-UiO-66 was successfully constructed via bidentate coordination between one −COO − group of [(CH 2 COOH) 2 IM]HSO 4 and two portions of unsaturated Zr ion defects of the hierarchically porous Zr metal−organic framework (H-UiO-66). The catalyst was systematically characterized by Fourier transform infrared spectroscopy, X-ray diffraction, nitrogen adsorption− desorption, scanning electron microscopy, and thermal gravimetric analysis, proving the feasibility of this encapsulation mode. The fabricated [(CH 2 COOH) 2 IM]@H-UiO-66 catalyst was applied for synthesis of biodiesel, and the reaction conditions were optimized by response surface methodology. The resulting Brønsted−Lewis acidic [(CH 2 COOH) 2 IM]HSO 4 @ H-UiO-66 catalyst exhibited excellent catalytic performance for the esterification of oleic acid with methanol. Under the optimum condition, the predicted yield of biodiesel reached 93.71% and the experimental value was 93.82%, which indicated the synthesized catalyst has high catalytic activity. Moreover, the catalyst could be easily recovered and reused, and the yield of biodiesel decreased from 93.82 to 90.95% after five runs, indicating good reusability. Besides, based on the synergistic effect of Brønsted acidic and Lewis acidic parts, the catalytic mechanism of [(CH 2 COOH) 2 IM]@H-UiO-66 was also discussed.

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Section: Introductionmentioning

confidence: 99%

Design and Synthesis of Ionic Liquid Supported Hierarchically Porous Zr Metal–Organic Framework as a Novel Brønsted–Lewis Acidic Catalyst in Biodiesel Synthesis

Cai

et al. 2018

Ind. Eng. Chem. Res.

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Hydrotalcite-calcined derivatives doped by zinc: A nucleophile-modified multifunctional catalyst for synthesis of propylene carbonate by cycloaddition

Zhang

Liu

et al. 2023

Catalysis Communications

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Design and synthesis of novel Brønsted-Lewis acidic ionic liquid and its application in biodiesel production from soapberry oil

Cai

Xie

et al. 2018

Energy Conversion and Management

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Optimization of lipid productivity by Citrobacter youngae CECT 5335 and biodiesel preparation using ionic liquid catalyst

Cited by 10 publications

References 41 publications

Design and Synthesis of Ionic Liquid Supported Hierarchically Porous Zr Metal–Organic Framework as a Novel Brønsted–Lewis Acidic Catalyst in Biodiesel Synthesis

Design and Synthesis of Ionic Liquid Supported Hierarchically Porous Zr Metal–Organic Framework as a Novel Brønsted–Lewis Acidic Catalyst in Biodiesel Synthesis

Hydrotalcite-calcined derivatives doped by zinc: A nucleophile-modified multifunctional catalyst for synthesis of propylene carbonate by cycloaddition

Design and synthesis of novel Brønsted-Lewis acidic ionic liquid and its application in biodiesel production from soapberry oil

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