The Synergy Effect of Ni-M M = Mo, Fe, Co, Mn or Cr Bicomponent Catalysts on Partial Methanation Coupling with Water Gas Shift under Low H2-CO ConditionsReportar como inadecuado


The Synergy Effect of Ni-M M = Mo, Fe, Co, Mn or Cr Bicomponent Catalysts on Partial Methanation Coupling with Water Gas Shift under Low H2-CO Conditions


The Synergy Effect of Ni-M M = Mo, Fe, Co, Mn or Cr Bicomponent Catalysts on Partial Methanation Coupling with Water Gas Shift under Low H2-CO Conditions - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, Jiangsu, China





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Academic Editors: Benoît Louis, Qiang Wang and Marcelo Maciel Pereira

Abstract Ni-M M = Mo, Fe, Co, Mn or Cr bicomponent catalysts were prepared through the co-impregnation method for upgrading low H2-CO ratio biomass gas into urban gas through partial methanation coupling with water gas shift WGS. The catalysts were characterized by N2 isothermal adsorption, X-ray diffraction XRD, H2 temperature programmed reduction H2-TPR, H2 temperature programmed desorption H2-TPD, scanning electron microscopy SEM and thermogravimetry TG. The catalytic performances demonstrated that Mn and Cr were superior to the other three elements due to the increased fraction of reducible NiO particles, promoted dispersion of Ni nanoparticles and enhanced H2 chemisorption ability. The comparative study on Mn and Cr showed that Mn was more suitable due to its smaller carbon deposition rate and wider adaptability to various H2-CO and H2O-CO conditions, indicating its better synergy effect with Ni. A nearly 100 h, the lifetime test and start-stop cycle test further implied that 15Ni-3Mn was stable for industrial application. View Full-Text

Keywords: bicomponent catalyst; partial methanation; water gas shift; low H2-CO ratio; biomass gas; urban gas bicomponent catalyst; partial methanation; water gas shift; low H2-CO ratio; biomass gas; urban gas





Autor: Xinxin Dong, Min Song, Baosheng Jin * , Zheng Zhou and Xu Yang

Fuente: http://mdpi.com/



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