Catalytic performance of supported Ni catalysts in partial oxidation and steam reforming of tar derived from the pyrolysis of wood biomass
Catalytic performance of supported Ni catalysts in partial oxidation and steam reforming of tar derived from the pyrolysis of wood biomass
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DOI：
10.1016/j.cattod.2006.02.055
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发表时间：
2006-06-30
期刊：
影响因子：
5.3
通讯作者：
Tomishige, Keiichi
中科院分区：
文献类型：
--
作者：
Miyazawa, Tomohisa;Kimura, Takeo;Tomishige, Keiichi
对Ni/Al2O3、Ni/ZrO2、Ni/TiO2、Ni/CeO2和Ni/MgO催化剂在杉木热解焦油部分氧化（POT）和蒸汽重整（SRT）中的活性进行了测试。在这些活性测试中，两种反应的表现顺序是相似的。采用H-2吸附、TPR、XRD等方法对催化剂进行了表征。从催化剂表征和活性测试结果的结合来看，POT和SRT中焦油的转化主要受表面Ni金属数量的控制。此外，Ni/CeO2在POT和SRT中表现出较少的焦炭。从活性炭与催化剂混合的TGA谱图中可以发现，Ni/CeO2促进了活性炭与O-2和蒸汽的反应。讨论了流化床反应器对焦炭和焦油量的影响。(c) 2006 Elsevier B.V.版权所有
Activity test of Ni/Al2O3, Ni/ZrO2, Ni/TiO2, Ni/CeO2 and Ni/MgO catalysts in the partial oxidation (POT) and steam reforming of tar (SRT) derived from the pyrolysis of cedar wood was performed. In these activity tests, the order of the performance in both reactions was similar. Catalyst characterization was also carried out by means of H-2 adsorption, TPR and XRD. From the combination of catalyst characterization with the results of the activity tests, it is suggested that the conversion of tar in POT and SRT is mainly controlled by the number of surface Ni metal. In addition, Ni/CeO2 showed smaller amount of coke than other catalysts in the POT and SRT. From the TGA profiles of active carbon mixed with catalysts, it is found that Ni/CeO2 promoted the reaction of active carbon with O-2 and steam. The function of the fluidized bed reactor in the POT with respect to coke and tar amount was discussed. (c) 2006 Elsevier B.V. All rights reserved.