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Near-room temperature transesterification over bifunctional CunO-Bs/SBA-15 catalyst for biodiesel production

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  • Hu, Ningmeng
  • Ning, Ping
  • He, Liang
  • Guan, Qingqing
  • Shi, Yuzhen
  • Miao, Rongrong

Abstract

The transesterification of triglycerides is a critical step in biodiesel production. In this work, by loading boron-doped copper oxides onto SBA-15 mesoporous molecular sieve, an acid-base bifunctional catalyst (i.e., CunO-Bs/SBA-15) was prepared and applied to triglyceride transesterification. Compared with pure copper, sodium or boron oxides-based catalysts, CunO-Bs/SBA-15 enabled a higher biodiesel yield (>97.5%) at near room temperature (i.e., 40 °C) in 120 min. The characterization results showed that after B doping, the CunO-Bs/SBA-15 catalyst contained highly-dispersed acid-base sites without blocking the channels of porous SBA-15 support, which had good catalytic performance. Finally, in-situ DRIFTS was used to reveal the catalytic mechanism of the acid-base bifunctional groups of the as-prepared CunO-Bs/SBA-15 during transesterification.

Suggested Citation

  • Hu, Ningmeng & Ning, Ping & He, Liang & Guan, Qingqing & Shi, Yuzhen & Miao, Rongrong, 2021. "Near-room temperature transesterification over bifunctional CunO-Bs/SBA-15 catalyst for biodiesel production," Renewable Energy, Elsevier, vol. 170(C), pages 1-11.
    • Handle: RePEc:eee:renene:v:170:y:2021:i:c:p:1-11
    DOI: 10.1016/j.renene.2021.01.118
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    Cited by:

    1. Xia, Shaige & Li, Jian & Chen, Guanyi & Tao, Junyu & Li, Wanqing & Zhu, Guangbin, 2022. "Magnetic reusable acid-base bifunctional Co doped Fe2O3–CaO nanocatalysts for biodiesel production from soybean oil and waste frying oil," Renewable Energy, Elsevier, vol. 189(C), pages 421-434.
    2. Karimian, A. & Pourhoseini, S.H. & Nozari, A., 2023. "Persica Akhani Salicornia as novel biodiesel feedstock production for economic prosperity in salty and water scarcity areas: Optimized oil extraction process and transesterification reaction using new," Renewable Energy, Elsevier, vol. 211(C), pages 361-369.
    3. Wang, Zhijuan & Zhou, Huajing & Liu, Zilian & Miao, Rongrong & He, Liang & Guan, Qingqing, 2023. "Walnut-shaped calcium oxide-cancrinite spheres for transesterification of waste frying oil," Renewable Energy, Elsevier, vol. 208(C), pages 229-239.
    4. Chen, Shanshuai & Yan, Puxiang & Yu, Xiaona & Zhu, Wanbin & Wang, Hongliang, 2023. "Conversion of lignin to high yields of aromatics over Ru–ZnO/SBA-15 bifunctional catalysts," Renewable Energy, Elsevier, vol. 215(C).

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