Development of fluidized bed catalyst for phthalic anhydride production

Hitoshi Saima, Toshinao Aono, Yukio Asami, Tatsuya Nobusawa, Toshihide Suzuki

研究成果: ジャーナルへの寄稿記事

抄録

JFE Group has produced phthalic anhydride at its Chiba plant since 1979 by using a fluidized bed reactor. A ground silica-based catalyst was used at the beginning of fluidized bed operation. By changing to a spherical type catalyst, the duration of catalytic activity was increased and catalyst density in the bed was reduced by around 10%. Addition of Cs to the catalyst enhanced its activity. Non-active silica gel was used as diluent for matching catalyst activity with plant capacity. The active component of Cs added to the catalyst has a lower melting point, the catalyst particles bound with it. The fluidized bed was operated stably by controlling the Cs/K ratio.

元の言語英語
ページ(範囲)272-276
ページ数5
ジャーナルkagaku kogaku ronbunshu
30
発行部数3
DOI
出版物ステータス出版済み - 5 1 2004

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Fluidized beds
Catalysts
Catalyst activity
Silica Gel
Silica gel
Silicon Dioxide
Melting point
phthalic anhydride
Silica

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

これを引用

Development of fluidized bed catalyst for phthalic anhydride production. / Saima, Hitoshi; Aono, Toshinao; Asami, Yukio; Nobusawa, Tatsuya; Suzuki, Toshihide.

:: kagaku kogaku ronbunshu, 巻 30, 番号 3, 01.05.2004, p. 272-276.

研究成果: ジャーナルへの寄稿記事

Saima, Hitoshi ; Aono, Toshinao ; Asami, Yukio ; Nobusawa, Tatsuya ; Suzuki, Toshihide. / Development of fluidized bed catalyst for phthalic anhydride production. :: kagaku kogaku ronbunshu. 2004 ; 巻 30, 番号 3. pp. 272-276.
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