Mesoporous silicas as supports for Ni catalyst used in cellulose conversion to hydrogen rich gas

被引：30

作者：

Grams, Jacek ^{[1
]}

Potrzebowska, Natalia ^{[1
]}

Goscianska, Joanna ^{[2
]}

Michalkiewicz, Beata ^{[3
]}

Ruppert, Agnieszka M. ^{[1
]}

机构：

[1] Lodz Univ Technol, Fac Chem, Inst Gen & Ecol Chem, Zeromskiego 116, PL-90924 Lodz, Poland

[2] Adam Mickiewicz Univ, Fac Chem, Lab Appl Chem, Umultowska 89b, PL-61614 Poznan, Poland

[3] West Pomeranian Univ Technol, Inst Inorgan Technol & Environm Engn, Ul Pulaskiego 10, PL-70322 Szczecin, Poland

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2016年 / 41卷 / 20期

关键词：

Biomass conversion; Hydrogen; Mesoporous materials; Nickel; Catalyst; Cellulose; FAST PYROLYSIS VAPORS; BIOMASS PYROLYSIS; DIRECT DECOMPOSITION; STEAM GASIFICATION; MEMBRANE REACTOR; PD; NICKEL; TAR; NANOPARTICLES; COMPONENTS;

D O I：

10.1016/j.ijhydene.2015.12.146

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：

This work was devoted to the investigation of the influence of the surface properties of nickel catalysts supported on different mesoporous silicas on their activity in thermo-chemical conversion of cellulose (the main constituent of lignocellulosic biomass) to hydrogen rich gas. The catalysts containing 20% of Ni introduced by impregnation on SBA-15, SBA-16, KIT-6, MCM-41 and SiO2 surface were synthesized. The surface properties of the prepared catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDS), ultraviolet-visible spectroscopy (UV-Vis) and temperature programmed reduction (TPR) methods. Acidity of the catalysts, surface area, pore volume and pore diameter were also determined. The obtained results revealed that an application of the synthesized catalysts to high temperature cellulose conversion process increased the amount of produced hydrogen. A rise in the hydrogen yield was possible owing to the choice of stable catalysts having an optimal combination of surface acidity, surface area, pore volume, pore diameter and localization, and accessibility of nickel crystallites. (C) 2015 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：8656 / 8667

页数：12

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