Vanillin production from lignin oxidation in a batch reactor

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Araujo, JDP (Author) FEUP; Grande, CA (Author) Other; Alírio Rodrigues (Author) FEUP

Journal

Title: Chemical Engineering Research and Design

Vol. 88 No. 8

Pages: 1024-1032

ISSN: 0263-8762

Publisher: Institute of Chemical Engineers

Indexing

ISI Web of Knowledge - 111 Citations

ISI Web of Science

Scopus - 159 Citations

COMPENDEX

INSPEC

Scientific classification

FOS: Engineering and technology > Chemical engineering

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Authenticus ID: P-003-45K

DOI: 10.1016/j.cherd.2010.01.021

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9