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Influence of supports on catalytic behavior of nickel catalysts in carbon dioxide reforming of toluene as a model compound of tar from biomass gasification.

Abstract：

:A series of supported Ni catalysts including Ni/MgO, Ni/γ-Al2O3, Ni/α-Al2O3, Ni/SiO2 and Ni/ZrO2 was tested in CO2 reforming of toluene as a model compound of tar from biomass gasification in a fluidized bed reactor, and characterized by the means of temperature programmed reduction with hydrogen (H2-TPR), XRD, TEM and temperature programmed oxidation (TPO). Combining the characterization results with the performance tests, the activity of catalyst greatly depended on Ni particles size, and the stability was affected by the coke composition. Both of them (Ni particle size and coke composition) were closely related to the interaction between nickel and support which would determine the chemical environment where Ni inhabited. The best catalytic performance was observed on Ni/MgO due to the strong interaction between NiO and MgO via the formation of Ni-Mg-O solid solution, and the highest dispersion of Ni particle in the basic environment.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Kong M,Fei J,Wang S,Lu W,Zheng X

doi

10.1016/j.biortech.2010.09.054

subject

Has Abstract

pub_date

2011-01-01 00:00:00

pages

2004-8

issue

2

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(10)01567-1

journal_volume

102

pub_type

杂志文章

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