水素化精製によって得られたVGOの接触分解 (第2報)

  • 深瀬 聡
    (株)ジャパンエナジー石油研究所
  • 丸山 文夫
    (株)ジャパンエナジー石油研究所 株)ジャパンエナジー企画本部

書誌事項

タイトル別名
  • Catalytic Cracking of VGOs Derived from Hydroprocessing (Part 2). Decline of FCC Conversion with Aging of Pretreatment Catalyst.
  • Decline of FCC Conversion with Aging of Pretreatment Catalyst

説明

FCC feedstock pretreatment was carried out in a bench-scale hydroprocessing unit at two seventies, reflecting hydrotreating (HT) and mild hydrocracking (MHC), with Ni-Mo/Al2O3 catalyst, followed by FCC experiments conducted in a microactivity test (MAT) unit. The severity of the treatment had a significant effect on long-term stability of catalytic cracking. The FCC conversion in the MHC operation declined faster than desulfurization or denitrogenation, due to the combined effect of deactivation in the polyaromatics-hydrogenation and in the denitrogenation functions. The change of FCC conversion was well expressed by the equation containing nitrogen and polyaromatics plus resin in the FCC feedstock.<br>The combination of HT and FCC (HT-FCC) operation demonstrated an advantage of maximizing production of gasoline over MHC-FCC operation. In contrast, MHC-FCC operation showed an advantage of maximizing yield of middle distillate during the initial period, but this advantage became less gradually.

収録刊行物

  • 石油学会誌

    石油学会誌 37 (6), 603-610, 1994

    公益社団法人 石油学会

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