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Synthesis of Guanidine and Its Deposition on Bacterial Cellulose as Green Heterogeneous Catalyst for Transesterification to Methyl Esters

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  • Cristian Eugen Răducanu

    (Department of Chemical and Biochemical Engineering, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania)

  • Tănase Dobre

    (Department of Chemical and Biochemical Engineering, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania
    Technical Sciences Academy of Romania, 26 Dacia Blvd., 030167 Bucharest, Romania)

  • Dan Eduard Mihăiescu

    (Department of Organic Chemistry, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania)

  • Alina Moroşan

    (Department of Organic Chemistry, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania)

  • Roxana Jidveian

    (Department of Chemical and Biochemical Engineering, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania)

  • Doinița Roxana Cioroiu Tîrpan

    (Department of Chemistry and Chemical Engineering, Ovidius University of Constanţa, 124 Mamaia Blvd., 900527 Constanţa, Romania)

  • Alexandru Dan Vasiliu

    (Department of Chemical and Biochemical Engineering, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania)

  • Cristina Ionela Gogoaşă

    (Department of Chemical and Biochemical Engineering, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania)

  • Oana Cristina Pârvulescu

    (Department of Chemical and Biochemical Engineering, National University of Science and Technology Politehnica Bucharest, 1-7 Gheorghe Polizu St., 011061 Bucharest, Romania)

  • Bogdan Trică

    (National Institute for Research Development for Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, S6, 060021 Bucharest, Romania)

Abstract

Green catalysts used in the transesterification reaction of biodiesel must have biodegradability and non-toxicity as their main characteristics, being thus friendly to the environment, since they perform in processes in which the content of CO 2 , which is increasing from year to year, should be reduced. As a consequence, their manufacture can be extremely rigorous. This work presents the two-step construction, synthesis, and deposition of such a green heterogeneous catalyst and its testing in the catalysis of the transesterification of triglycerides with methanol, resulting in methyl esters. A CSTR-type reactor was used to perform transesterification, and the biodiesel yields obtained had values in the range of 91.7–95.7%, using 2, 3, and 4 g/g catalyst to oil, under conditions like those for obtaining commercial biodiesel in homogeneous catalysis, i.e., a 65 °C process temperature and a 4:1, 5:1 or 6:1 methanol-to-oil molar ratio.

Suggested Citation

  • Cristian Eugen Răducanu & Tănase Dobre & Dan Eduard Mihăiescu & Alina Moroşan & Roxana Jidveian & Doinița Roxana Cioroiu Tîrpan & Alexandru Dan Vasiliu & Cristina Ionela Gogoaşă & Oana Cristina Pârvul, 2024. "Synthesis of Guanidine and Its Deposition on Bacterial Cellulose as Green Heterogeneous Catalyst for Transesterification to Methyl Esters," Energies, MDPI, vol. 17(6), pages 1-19, March.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:6:p:1344-:d:1355156
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    References listed on IDEAS

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    1. Hanna Karlsson Potter & Dalia M. M. Yacout & Kajsa Henryson, 2023. "Climate Assessment of Vegetable Oil and Biodiesel from Camelina Grown as an Intermediate Crop in Cereal-Based Crop Rotations in Cold Climate Regions," Sustainability, MDPI, vol. 15(16), pages 1-17, August.
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