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- W3118507112 endingPage "124614" @default.
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- W3118507112 abstract "A solid acid catalyst prepared by sulfonated Sargassum horneri carbon was utilized for the esterification reaction of oleic acid and methanol. The formed amorphous carbon layers during carbonization and the access of sulfonic acid groups during sulfonation can catalyze the esterification reaction for biodiesel preparation efficiently. The catalyst was characterized by various methods to investigate its physical and chemical properties. With carbonization at 300 °C for 2 h followed by sulfonation at 90 °C for 5 h, the catalyst reached acid density of 1.40 mmol/g. The catalyst dosage, methanol/oleic acid (molar ratio), reaction temperature, and reaction time were optimized to 10 wt%, 15:1, 70 °C, and 3 h, respectively. Under the optimal condition, the conversion of oleic acid reached 96.4%. Additionally, the catalyst was regenerated after four cycles, with the conversion of oleic acid still reaching 95.4%." @default.
- W3118507112 created "2021-01-18" @default.
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- W3118507112 date "2021-03-01" @default.
- W3118507112 modified "2023-10-16" @default.
- W3118507112 title "Sulfonated Sargassum horneri carbon as solid acid catalyst to produce biodiesel via esterification" @default.
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- W3118507112 doi "https://doi.org/10.1016/j.biortech.2020.124614" @default.
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