Desulfurization of vacuum gasoil by MCM-41 supported molybdenum-nickel catalysts

Tzong Rong Ling, Ben Zu Wan, Hong Ping Lin, Chung Yuan Mou

研究成果: 雜誌貢獻文章同行評審

16 引文 斯高帕斯(Scopus)

摘要

Hydrodesulfurization (HDS) of vacuum gas oil (VGO) was carried out in a trickle bed reactor at 400°C and 7.2 MPa with a weight hourly space velocity (WHSV) = 2 h-1 over a series of molybdenum-nickel catalysts, which were prepared by loading the same amounts of MoO3 (12 wt %) and NiO (3 wt %) on supports including: tubular shaped MCM-41, nontubular shaped MCM-41, alumina, and silica. The HDS activity of the MoNi catalysts with different supports was investigated. The tubular shaped MCM-41, which possesses a regularly ordered molecular sieve structure, was shown to give significant improvements in the diffusion of large molecules. The results indicated that the tubular shaped MCM-41 supported catalyst has a higher activity than the other catalysts when measured over a 4-5 day running period. The effect of Si/Al ratios in the framework is also discussed. Various methods and techniques were used to characterize the catalysts such as: scanning electron microscopy (SEM), transmission electronic microscopy (TEM), temperature programming reduction (TPR), X-ray diffraction (XRD), mercury-porosity, and the generation of nitrogen adsorption-desorption isotherms.

原文英語
頁(從 - 到)1797-1803
頁數7
期刊Industrial and Engineering Chemistry Research
48
發行號4
DOIs
出版狀態已發佈 - 2月 18 2009
對外發佈

ASJC Scopus subject areas

  • 化學 (全部)
  • 化學工程 (全部)
  • 工業與製造工程

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