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Kinetics of Vanillin Production from Kraft Lignin Oxidation
Abstract
Vanillin production from chemical oxidation of Pinus spp . Kraft lignin is investigated. At a temperature of 130 °C, an oxygen partial pressure of 3 bar, a total pressure of 9 bar, and a lignin concentration of 60 g/L in an alkaline medium of 2 N NaOH, a maximum vanillin yield of 10% is obtained. On the basis of experimental results in a batch reactor operated under various conditions of temperature, oxygen partial pressure, total pressure, initial lignin concentration and pH, a kinetic model is proposed to simulate vanillin production from oxidation of Kraft lignin. The reaction rate of vanillin production is, for pH > 11.5, r C = k NC [O 2 ] 1.75 [L] − k CI [O 2 ][C] and, for pH < 11.5, r C = k NC [O 2 ] 1.75 [L] − Af (pH)[C] 2 . An attempt to predict pH variation during the reaction is also made. The overall flowsheet of the process is briefly addressed, and the recovery of vanillin by adsorption is discussed.
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Cited by
Vanillin production from lignin and its use as a renewable chemical
Fache, M., Boutevin, B., & Caillol, S. (2016) · ACS Sustainable Chemistry & Engineering · doi:10.1021/acssuschemeng.5b01344 · Cited by 902
Hydrothermal conversion of lignin: A review
Kang, S., Li, X., Fan, J., & Chang, J. (2013) · Renewable and Sustainable Energy Reviews · doi:10.1016/j.rser.2013.07.013 · Cited by 552
Complementing vanillin and cellulose production by oxidation of lignocellulose with stirring control
Zhu, Y., Liao, Y., Lv, W., Liu, J., Song, X., Chen, L., Wang, C., Sels, B. F., & Ma, L. (2020) · ACS Sustainable Chemistry & Engineering · doi:10.1021/acssuschemeng.9b04837 · Cited by 94
Degradation of vanillin during lignin valorization under alkaline oxidation
Zhu, Y., Liu, J., Liao, Y., Lv, W., Ma, L., & Wang, C. (2018) · Topics in Current Chemistry · doi:10.1007/s41061-018-0208-1 · Cited by 46
Baroutian, S., Robinson, M., Smit, A.-M., Wijeyekoon, S., & Gapes, D. (2013) · Bioresource Technology · doi:10.1016/j.biortech.2013.07.098 · Cited by 44
Metadata
- Authors
- Fargues, C., Mathias, Á., & Rodrigues, A.
- Venue
- Industrial & Engineering Chemistry Research
- Publisher
- American Chemical Society (ACS)
- Published
- 1996-01-01
- Volume
- 35
- Issue
- 1
- Pages
- 28-36
- ISSN
- 0888-5885 (ISSN-L)
- 1520-5045
- OpenAlex
- W2070533511
- Cited by
- 160
- References
- 0
- FWCI
- 0.41
- Type
- journal article
- Language
- en
- Open access
- closed
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- Fargues, C., Mathias, Á., & Rodrigues, A. (1996). Kinetics of Vanillin Production from Kraft Lignin Oxidation. Industrial & Engineering Chemistry Research. https://doi.org/10.1021/ie950267k
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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