Catalytic performance and characterization of Ni-Fe catalysts for the steam reforming of tar from biomass pyrolysis to synthesis gas

被引：311
|
作者：
Wang, Lei [1 ]
Li, Dalin [1 ,2 ]
Koike, Mitsuru [3 ]
Koso, Shuichi [1 ]
Nakagawa, Yoshinao [1 ,2 ]
Xu, Ya [4 ]
Tomishige, Keiichi [1 ,2 ,3 ]
机构：
[1] Tohoku Univ, Sch Engn, Dept Appl Chem, Aoba Ku, Sendai, Miyagi 9808579, Japan
[2] CREST, Japan Sci & Technol Agcy, Aoba Ku, Sendai, Miyagi 9808579, Japan
[3] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058573, Japan
[4] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
来源：
APPLIED CATALYSIS A-GENERAL | 2011年 / 392卷 / 1-2期
基金：
日本科学技术振兴机构;
关键词：
Biomass; Tar; Steam reforming; Ni; Fe; Alloy; Synthesis gas; SOLID-SOLUTION CATALYSTS; FLUIDIZED-BED GASIFICATION; PRESSURIZED CONDITIONS; PARTIAL OXIDATION; NOBLE-METALS; RH/CEO2/SIO2; CATALYSTS; CARBON DEPOSITION; NICKEL-CATALYSTS; LOW-TEMPERATURE; METHANE-STEAM;
D O I：
10.1016/j.apcata.2010.11.013
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：
Catalytic performance of Ni-Fe/Al2O3 catalysts with the optimum composition was much higher than corresponding monometallic Ni and Fe catalysts in the steam reforming of tar from the pyrolysis of cedar wood. According to the catalyst characterization, the Ni-Fe alloys were formed and the Fe atoms on the alloys tend to be enriched on the surface, and it was suggested that the structure was maintained mainly during the reaction. The surface Fe atoms supply oxygen species, enhancing the reaction of tar and suppressing the coke formation. Excess Fe addition decreased the catalytic activity by decreasing the surface Ni atoms. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：248 / 255
页数：8
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