Vanillin production from lignin oxidation in a batch reactor

José D.P. Araújo, Carlos A. Grande, Alírio E. Rodrigues

Research output: Contribution to journalArticlepeer-review

180 Scopus citations

Abstract

Vanillin production from lignin oxidation is a biomass-based process that employs a by-product of the pulp and paper industry and air to obtain a high-added value compound. However, lignin is an organic polymer with a structure that depends strongly on the source and the conditions to obtain vanillin should be adjusted for different samples.The objective of this work is to establish a fast and standard protocol to characterize lignin conversion to vanillin by batch oxidation. The experimental technique is coupled with a mathematical model that allows us to fit the data and determine kinetic rate constants under non-isothermal conditions. Two examples of vanillin oxidation with very different lignin sources are presented. The results revealed vanillin yields with respect to the lignin mass ranging from 3.5% to 7.6% for the high and low-molecular weight lignins, respectively. © 2010 The Institution of Chemical Engineers.
Original languageEnglish (US)
Pages (from-to)1024-1032
Number of pages9
JournalChemical Engineering Research and Design
Volume88
Issue number8
DOIs
StatePublished - Aug 1 2010
Externally publishedYes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

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