Thermal effects on effectiveness of catalysts having bidisperse pore size distributions

Date

2003-06-15

Author

Sahin, E
Doğu, Timur
Murtezologlu, K

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Effectiveness factor of a non-isothermal porous catalyst pellet with a bimodal pore size distribution is a strong function of the dimensionless parameter alpha, which is proportional to the ratio of diffusion resistances in the macro and micropores. For exothermic reactions, the maximum observed in the effectiveness factor versus particle-Thiele modulus curves shifts to lower particle-Thiele modulus values and also becomes more significant with an increase of alpha. In the prediction of observed rates, possible effects of four dimensionless groups, namely particle-Thiele modulus phi(i), alpha, Prater parameter beta and gamma should be considered for porous catalysts having bimodal pore-size distributions.

Subject Keywords

Non-isothermal, Effectiveness factor, Bidisperse catalyst

URI

https://hdl.handle.net/11511/62720

Journal

CHEMICAL ENGINEERING JOURNAL

DOI

https://doi.org/10.1016/s1385-8947(02)00227-9

Collections

Graduate School of Natural and Applied Sciences, Article

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Citation Formats

E. Sahin, T. Doğu, and K. Murtezologlu, “Thermal effects on effectiveness of catalysts having bidisperse pore size distributions,” CHEMICAL ENGINEERING JOURNAL, pp. 143–149, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62720.