Enzymatic Hydrolysis Lignin Oxidation to Prepare Aromatic Aldehydes with Activation of Fenton Reagent

Abstract:

Enzymatic hydrolysis lignin was prepared and used to converse into aromatic aldehydes by catalytic wet oxidation with activation of Fenton reagent. The results demonstrated that the enzymatic hydrolysis lignin was a suitable raw material for the preparation of aromatic aldehydes. Orthogonal experiments were conducted to obtain the optimum preparation conditions. The effects of activation time, activation temperature, ratio of liquid to solid and pH of the reaction system on the yield of aromatic aldehydes were dealt with in this paper and optimal activation conditions were obtained as followed: the pH of activating reaction system was 4, activation temperature was 60°C, ratio of liquid to solid was 20:1 and activation time was 30 min. The highest yield of 13.74 % was obtained under the optimum conditions.

• Periodical: Advanced Materials Research (Volumes 953-954)
• Pages: 173-177
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.953-954.173
• Online since: June 2014
• Authors: Zhen Wu*, Ning Xu, Lei Hu, Ben Lin Dai, Jia Xing Xu
• Keywords: Activation, Aromatic Aldehydes, Enzymatic Hydrolysis Lignin, Fenton Reagent

References

[1] S. Kang,X. Li,J. Fan,J. Chang, Hydrothermal conversion of lignin: A review,J. Renewable and Sustainable Energy Reviews. 27(2013)546-558.

DOI: 10.1016/j.rser.2013.07.013

[2] R. Beauchet,F. Monteil-Rivera J.M. Lavoie, Conversion of lignin to aromatic-based chemicals(L -chems) and biofuels (L-fuels),J. Bioresource Technology. 121(2012)328-334.

DOI: 10.1016/j.biortech.2012.06.061

[3] J. Nikiema,F. Rivard,M. Heitz, Lignin oxidation to generate vanillin: An integrated learning project for chemical engineering students,J. Education for Chemical Engineers. 4(2009)68-73.

DOI: 10.1016/j.ece.2009.10.001

[4] G. Bentivenga,C. Bonini,M. D'Auria A.D. Bona, Degradation of steam-exploded lignin from beech by using Fenton's reagent,J. Biomass and Bioenergy. 24(2003)233-238.

DOI: 10.1016/s0961-9534(02)00135-6

[5] K. Ninomiya, H. Takamatsu, A. Onishi, K. Takahashi, N. Shimizu, Sonocatalytic-Fenton reaction for enhanced OH radical generation and its application to lignin degradation,J. Ultrasonics Sonochemistry. 20(2013)1092-1097.

DOI: 10.1016/j.ultsonch.2013.01.007

[6] L.I. Tolosa A.J. Rodríguez-Malaver A.M. González O.J. Rojas, Effect of Fenton's reagent on O/W emulsions stabilized by black liquor,J. Journal of Colloid and Interface Science. 294(2006)182-186.

DOI: 10.1016/j.jcis.2005.06.092

[7] J. Zhang,H. Deng,L. Lin, Wet aerobic oxidation of lignin into aromatic aldehydes catalysed by a perovskite-type oxide: LaFe1-xCuxO3 (x=0, 0. 1, 0. 2),J. Molecules. 14(2009)2747-2757.

DOI: 10.3390/molecules14082747

[8] L. Berghem,G. Pettersson, The mechanism of enzymatic cellulose degradation isolation and some properties of a b-glucosidase from Trichoderma viride,J. Eur J Biochem. 46(1974)295-305.

DOI: 10.1111/j.1432-1033.1974.tb03621.x

[9] Chemical analysis and testing laboratory analytical procedures, National Renewable Energy Laboratory(1996).