Highly efficient conversion of gasoline into hydrogen on Al2O3-supported Ni-based catalysts: Catalyst stability enhancement by modification with W

The catalytic performance of W-containing bimetallic Ni–W/Al2O3 catalyst and tri-metallic Ni–W–Ce/Al2O3 and Ni–Re–W/Al2O3 catalysts for oxidative steam reforming of gasoline to produce hydrogen has been studied. The bimetallic Ni–W/Al2O3 catalyst exhibits significantly superior activity maintenance compared to that of monometallic Ni/Al2O3 catalyst for highly efficient conversion of sulfur-containing gasoline fuel into hydrogen. The activity maintenance of tri-metallic Ni–W–Ce/Al2O3 catalyst with the suitable ratios of Ni/W/Ce is much better than those of bimetallic Ni–W/Al2O3 or Ni–Ce/Al2O3 catalysts for oxidative steam reforming of gasoline. The tri-metallic Ni–Re–W/Al2O3 catalyst exhibits better activity maintenance than bimetallic Ni–W/Al2O3 or Ni–Re/Al2O3 for oxidative steam reforming of gasoline to produce hydrogen. W acts as a promoter to improve the sulfur tolerance of W-containing bimetallic Ni–W/Al2O3 and tri-metallic Ni–W–Ce/Al2O3 and Ni–Re–W/Al2O3 catalysts for oxidative steam reforming of gasoline.

Graphical abstractNi–Re/Al2O3 has been proven to be a promising catalyst system for steam reforming or oxidative steam reforming of gasoline to generate hydrogen. The sulfur tolerance of Ni-based catalysts including Ni–Re/Al2O3 for oxidative steam reforming of sulfur-containing gasoline fuels are remarkably enhanced by modification with W.Figure optionsDownload full-size imageDownload as PowerPoint slide