Production of alkanes from biomass derived carbohydrates on bi-functional catalysts employing niobium-based supports

被引：68

作者：

West, Ryan M. ^{[1
]}

Tucker, Mark H. ^{[1
]}

Braden, Drew J. ^{[1
]}

Dumesic, James A. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Chem & Biol Engn, Madison, WI 53706 USA

来源：

CATALYSIS COMMUNICATIONS | 2009年 / 10卷 / 13期

基金：

美国国家科学基金会;

关键词：

Niobic acid; Niobium phosphate; Bi-functional; Heterogeneous catalysis; Biomass; Sorbitol; FRUCTOSE DEHYDRATION; LIQUID ALKANES; ACID; PHOSPHATE; OXIDE; 5-HYDROXYMETHYL-2-FURALDEHYDE; HYDROCARBONS; TEMPERATURE; ADSORPTION; SILICA;

D O I：

10.1016/j.catcom.2009.05.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Bi-functional catalysts consisting of Pt supported on niobium-based solid acids were synthesized and utilized in the aqueous-phase dehydration and hydrogenation of sorbitol to alkanes at temperatures near 530 K and pressures of 54 bar. At low space velocities, the yield of alkanes is highest but decreases in favor of oxygenated compounds as the space velocity is increased. Niobium-based catalysts demonstrate superior reactivity in comparison to a silica-alumina based catalyst. This higher reactivity is not related to the concentration of acid sites but rather is attributed to the coordination environment of the niobium acid center. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1743 / 1746

页数：4

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