CatalyticdecompositionofCH4overNi-Al2O3-SiO2catalysts:InfluenceofpretreatmentconditionsfortheproductionofH2

被引：2

作者：

Jangam Ashok

Gangadhara Raju

Padigapati Shiva Reddy

Machiraju Subrahmanyam

Akula Venugopal

机构：

[1] CatalysisandPhysicalChemistryDivision,IndianInstituteofChemicalTechnology,Tarnaka,Hyderabad,India-

来源：

Journal of Natural Gas Chemistry | 2008年 / 02期

关键词：

in situ reduction; Ni-Al2O3-SiO2; catalyst; methane decomposition; hydrogen production; carbon nanofibers;

D O I：

暂无

中图分类号：

O643.32 [催化反应]; TQ116.2 [氢气];

学科分类号：

081705 ; 0817 ;

摘要：

<正>This article reports the production of COx free hydrogen and carbon nanofibers by the catalytic decomposition of methane over Ni-Al2O3-SiO2 catalysts.The influence of reaction temperature,pretreatment temperature,and effect of reductive pretreatment on the decomposition of methane activity is investigated.The physico-chemical characteristics of fresh and deactivated samples were characterized using BET-SA,XRD,TPR,SEM/TEM,CHNS analyses and correlated with the methane decomposition results obtained.The Ni-Al-Si （4:0.5:1.5） catalyst reduced with hydrazine hydrate produced better H2 yields of ca.1815 mol H2/mol Ni than the catalyst reduced with 5% H2/N2.

引用

页码：113 / 119

页数：7

共 3 条

[1]

Pure H 2 Production by Decomposition of Methane Over Ni Supported on Hydroxyapatite Catalysts[J] . J. Ashok,S. Naveen Kumar,M. Subrahmanyam,A. Venugopal. Catalysis Letters . 2008 (3)

[2] Production of COX Free Hydrogen by Catalytic Decomposition of Methane Over Ni/HY Catalysts [J].

Jangam Ashok ;

Sathu Naveen Kumar ;

Machiraju Subrahmanyam ;

Akula Venugopal .

Catalysis Letters, 2007, 118 :139-145

[3]

Stepwise methane steam reforming: a route to CO-free hydrogen[J] . T.V. Choudhary,D.W. Goodman. Catalysis Letters . 1999 (2)

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