流れの数値解析と化学装置のモデリング　　Ｐｔ／Ａｌ２Ｏ３触媒上でのＮＯ‐ＣＯ反応の周期的濃度変動操作　　細孔内拡散の影響

DOI Web Site Web Site 被引用文献2件 参考文献10件

書誌事項

タイトル別名
  • Computation Transport Phenomena in Chemical Engineering. Periodic Operation of NO-CO Reaction over Pt/Al2O3. Effect of Intraparticle Diffusion.
  • Pt Al2O3 ショクバイジョウ デ ノ NO-CO ハンノウ ノ シュウキ
  • Effect of Intraparticle Diffusion
  • 細孔内拡散の影響

この論文をさがす

抄録

Periodic operation of NO-CO reaction over Pt/Al2O3 was conducted by using an egg-shell-type catalyst and an egg-white-type catalyst in order to investigate the effect of intraparicle diffusion on the reaction performance. The former catalyst held platinum in the outer layer of the particle and the latter held in the inner layer. Time-averaged conversion of NO under periodic operation exceeded that under steady operation in a certain range of periods, showing a maximum versus period for both catalysts. In the case of the egg-white-type catalyst, the conversion rose and declined with a lasser dependence on the period than in the case of the egg-shell-type catalyst. Under periodic operation with periods up to 360 s, the egg-white-type catalyst showed reaction performance higher than that under steady operation. A model calculation reproduced the tendency and revealed that intraparticle diffusion slowed the rate of desorption of CO, and that the slow desorption of CO resulted in the experimental observation for egg-white-type catalyst.

収録刊行物

被引用文献 (2)*注記

もっと見る

参考文献 (10)*注記

もっと見る

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