<br/>Plant cell wall material is composed of three important constituents, cellulose, hemicellulose, and Lignin. Lignin is a complex polymer of phenylpropane units, which are cross-linked to each other with a variety of chemical bonds. Lignin is the second most abundant and renewable source of value-added chemicals. Lignin is copolymer of p-hydroxypheny (H), guaiacyl (G), and siringyl (S). The phenolic monomers are widely used in various industrial applications. The main aim of this study is to conversion of alkali lignin in to value-added chemicals using subcritical water and zeolite supported catalysts. We studied the reactions at 240C for 10 minutes. The conversion yield of phenolic monomers in the presence of 5% V/Zeolite catalyst was 33.76±0.45 mg/g, 1.7% V/Zeolite was 30.9±0.41 mg/g, LaO was 7.95±0.14 mg/g, MoO was 8.02±0.08, and CoO was 8.03±0.10 mg/g. This approach was green and environmentally friendly comparative traditional methods.

Depolymerization of alkali lignin in the presence of subcritical water and zeolite-supported catalysts

2019 Spring National Meeting

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