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Renewable energy v.105, 2017년, pp.76 - 83   SCIE
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Deactivation characteristics of Ni and Ru catalysts in tar steam reforming

Park, Seo Yun (Department of Environmental Engineering, Chungbuk National University, Cheongju 362-763, Republic of Korea ); Oh, Gunung ( Department of Advanced Energy Technology, University of Science and Technology, Daejeon 305-350, Republic of Korea ); Kim, Kwangyul ( Department of Environmental Engineering, Chungbuk National University, Cheongju 362-763, Republic of Korea ); Seo, Myung Won ( Climate Change Research Division, Korea Institute of Energy Research, Daejeon 305-343, Republic of Korea ); Ra, Ho Won ( Climate Change Research Division, Korea Institute of Energy Research, Daejeon 305-343, Republic of Korea ); Mun, Tae Young ( Climate Change Research Division, Korea Institute of Energy Research, Daejeon 305-343, Republic of Korea ); Lee, Jae Goo ( Climate Change Research Division, Korea Institute of Energy Research, Daejeon 305-343, Republic of Korea ); Yoon, Sang Jun ( Department of Advanced Energy Technology, University of Science and Technology, Daejeon 305-350, Republic of Korea );
  • 초록  

    Abstract Tar formation resulting during lignocellulosic biomass gasification is a major impediment to utilizing biomass energy sources, in that it blocks and fouls the processing equipment; as such, any tar present in the produced syngas much be effectively removed. This study analyzes the ability of commercially available Ni and Ru based CH 4 reforming catalysts to effect tar removal and compares deactivation characteristics. Toluene was used as the model biomass tar at concentrations of 30 and 100?g/Nm 3 . Several additional parameters were also tested, including reaction temperatures (400–800?°C), space velocities (5000–30,000 h −1 ), and the steam/toluene ratios (2–20). The variation of toluene conversion and product gas composition with reaction conditions was analyzed. Overall, H 2 and CO production were favored by the Ru catalyst and generally increased with temperature. Conversion also increased with temperature, with conversions higher than 90% obtained at 800?°C. Highlights Ru-containing RUA and Ni-containing FCR-4 were tested as tar reforming catalysts. Toluene was used as the model tar at both standard and high concentrations. Both catalysts effected over 90% conversion at 800?°C for standard toluene loading. Conversion increased with steam content and decreased as space velocity increased. FCR-4 showed significantly greater coke deposition, accounting for deactivation.


  • 주제어

    Biomass .   Gasification .   Tar .   Steam reforming .   Deactivation.  

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