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Catalysts for Low-temperature Methane Oxidation

Research Project

Project/Area Number 12650779
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 触媒・化学プロセス
Research InstitutionKyushu University

Principal Investigator

SASAKI Kazunari  Faculty of Engineering Sciences, Associate Professor, 大学院・総合理工学研究院, 助教授 (80322296)

Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2000: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywordscombustion catalysis / Palladium / SnO2 / low-temperature oxidation / deactivation / methane oxidation
Research Abstract

The activity for low-temperature methane oxidation over oxide-supported catalysts such as Pd/Al_2O_3, Pd/SnO_2, and Pd/Al_2O_3-36NiO was investigated. It was found that Pd/Al_2O_3 was deactivated most significantly due to water vapor, and that Pd/Al_2O_3-36NiO was most insensitive to water vapor. The catalytic activity of Pd/Al_2O_3 decreased monotonically as water vapor concentration increased, whereas Pd/SnO_2 and Pd/Al_2O_3-36NiO showed almost constant activity under higher water vapor concentrations.
The catalytic activity at high steam concentration was in the following order: Pd/SnO_2 >Pd/Al_2O_3-36NiO > Pd/Al_2O_3. Kinetic analysis with methane adsorption as the rate-limiting step was applied to evaluate the water inhibiting effect. Pd/Al_2O_3 displayed the most negative value of the enthalpy of water adsorption, while Pd/SnO_2 and Pd/Al_2O_3-36NiO exhibited similar water adsorption enthalpy.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] R.Kikuchi, S.Maeda, K.Sasaki, S.Wennerstrom, K.Eguchi: "Low-temperature methane oxidation over oxide-supported Pd catalysts : inhibitory effect of water vapor"Applied Catalysts A : General. 232. 23-28 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] R. Kikuchi, S. Maeda, K. Sasaki, S. Wennerstrom, K. Eguchi: "Low-temperature methane oxidation over oxide-supported Pd catalysts: inhibitory effect of water vapor"Applied Catalysts A: General. 232 (1-2). 23-28 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] R.Kikuchi, S.Maeda, K.Sasaki, S.Wennerstrom, K.Eguchi: "Low-temperature methane oxidation over oxide-supported Pd catalysts : inhibitory effect of water vapor"Applied Catalysts A : General. 232・(1-2). 23-28 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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