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Structural Stability of Binary Sulfide Catalysts During the Hydrotreating of Coal-Derived Liquids

โœ Scribed by Hiromichi Shimada; Nobuyuki Matsubayashi; Motoyasu Imamura; Toshio Sato; Yuji Yoshimura; Takashi Kameoka; Koji Masuda; Akio Nishijima

Publisher
Wiley (John Wiley & Sons)
Year
2010
Weight
528 KB
Volume
104
Category
Article
ISSN
0037-9646

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โœฆ Synopsis

The structures of the supported binary sulfide catalysts, such as Ni-MolAkOs or Ni-W/A1203 catalysts, used in hydrotreating were analyzed by the X-ray absorption fine structure method. The catalytically active phase of the "Ni-Mo(W)-S" structure was found to decompose into bulk single sulfides, particularly when the feedstock contained large amounts of nitrogen-or oxygen-containing compounds. The active phase was able to be recovered by careful calcination of the segregated catalyst followed by sulfiiing.

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