Effect of acidity and porosity of alkali-treated ZSM-5 zeolite on eugenol hydrodeoxygenation

被引：50

作者：

Xing, Jing ^{[1
]}

Song, Liang ^{[2
]}

Zhang, Cong ^{[2
]}

Zhou, Mingdong ^{[1
]}

Yue, Li ^{[2
]}

Li, Xuebing ^{[2
]}

机构：

[1] Liaoning Shihua Univ, Sch Chem & Mat Sci, Fushun 113001, Peoples R China

[2] Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Qingdao 266101, Peoples R China

来源：

CATALYSIS TODAY | 2015年 / 258卷

基金：

中国国家自然科学基金;

关键词：

Eugenol; Lignin; Biomass; Hydrodeoxygenation; HZSM-5; zeolite; Desilication; AQUEOUS-PHASE HYDRODEOXYGENATION; MFI ZEOLITES; DESILICATION; MESOPOROSITY; ETHANOL; HZSM-5; DEHYDRATION; PERFORMANCE; CONVERSION; DIFFUSION;

D O I：

10.1016/j.cattod.2015.04.014

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Upgrading of lignin derived bio-oil is a very promising way to relieve humankind's dependence on traditional fossil fuels. Eugenol, a model compound for lignin monomers with a methoxyl group and a hydroxyl group, was hydrodeoxygenated in aqueous phase with Pd/C as hydrogenation catalyst and ZSM-5 zeolite as hydrolysis and dehydration catalysts. The bulky lignin monomers had difficulty in accessing the acid sites of the micropores of ZSM-5 zeolite, thus we introduced mesopores via alkaline treatment under various conditions. Alkali-treated ZSM-5 zeolites showed higher conversion and hydrocarbon selectivity compared to the parent ZSM-5 zeolite. When ZSM-5 zeolite was treated at 338 K, the conversion and the hydrocarbon selectivity increased by 21% and 24%, respectively. In addition, much more weak acid sites of ZSM-5 zeolites after alkaline treatment also promoted the hydrolysis and dehydration process. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：90 / 95

页数：6

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