Abstract
Furfural from biomass such as corncob is an important chemical with wide applications. The current industrial production of furfural uses H2SO4 as catalyst which is highly toxic and corrosive. It was demonstrated that the acidic salt KHSO4 was an effective and safer catalyst for furfural production. The optimum conditions for furfural production from corncob were investigated. The XRD and TG analyses of raw corncob and typical reaction residue were conducted and discussed. Finally, an outlook to the future work was put forward.
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This work was financially supported by Anhui Scientific Foundation (KJ2012A084).
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Highlights
1. It was demonstrated that KHSO4 was an effective catalyst for furfural production from corncob and the optimum reaction conditions were investigated and the yield of furfural is comparable with that obtained in industrial production using H2SO4 as catalyst.
2. Advantages and disadvantages of using KHSO4 as catalyst for furfural production were discussed compared with the conventional catalyst H2SO4. KHSO4 is safer and more convenient in operation than H2SO4, although it is more expensive.
3. The XRD and TG curves of raw corncob and reaction residue were found changing gradually as reaction time prolonged step by step.
4. An outlook to the future work of recovering and reusing KHSO4 was put forward aiming at overcoming its higher cost.
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Wang, J., Wang, Jh. & Yu, Ym. Effective and safer catalyst KHSO4 for producing furfural: a platform compound. Biomass Conv. Bioref. 11, 1293–1300 (2021). https://doi.org/10.1007/s13399-019-00516-z
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DOI: https://doi.org/10.1007/s13399-019-00516-z