3種のニッケル担持ゼオライト触媒を用いる多環芳香族化合物の水素化分解反応

DOI Web Site

書誌事項

タイトル別名
  • Hydrocracking of Polycyclic Aromatic Hydrocarbons Catalyzed by Three Nickel-supported Different Zeolite Catalysts.

抄録

Hydrocracking of phenanthrene and pyrene over three different types of Ni-loaded zeolite catalysts (ZSM-5, Mordenite, and Y-type) was performed. The reaction conditions were as follows: 350°C, 70kg/cm2 (H2), 0, 15, 60min. The presulfided Ni-Mo catalyst was also examined for comparison. Among the three zeolite catalysts, clear-cut differences in product distribution were observed. In the case of phenanthrene, the extent of cracking depended upon the pore size of the catalysts. When ZSM-5 catalyst was used, a predominant production of dihydro-, tetrahydro- and sym- and unsym-octahydrophenanthrenes took place because phenanthrene could not enter the channel pores of these catalysts. In the case of Y-type zeolite and mordenite, hydrocracking of phenanthrene skeleton proceeded more efficiently. The presulfided Ni-Mo catalyst was observed to be excellent for hydrogenating these polyaromatic compounds, but no cracking reaction was observed. In the case of using pyrene as a substrate whose molecular size is larger than the pore size of the channels of the zeolites employed, similar effects of pore size on product distribution were observed. Combination of the presulfided Ni-Mo catalyst and Y-type zeolite was examined to obtain high yields of mono- and diaromatic compounds from pyrene, and the results observed were briefly discussed.

収録刊行物

  • 石油学会誌

    石油学会誌 39 (2), 120-128, 1996

    公益社団法人 石油学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ