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颗粒内传质参数作为工具用于催化剂颗粒的设计(英文)
引用本文:L. PETROV,M. DAOUS,Y. ALHAMED,A. AL-ZAHRANI,Kh. MAXIMOV. 颗粒内传质参数作为工具用于催化剂颗粒的设计(英文)[J]. 催化学报, 2012, 0(7): 1166-1175
作者姓名:L. PETROV  M. DAOUS  Y. ALHAMED  A. AL-ZAHRANI  Kh. MAXIMOV
作者单位:SABIC Chair in Catalysis, Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, PO Box 80204, Jeddah 21589, Kingdom of Saudi Arabia;Institute of Catalysis, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
基金项目:supported by SABIC Chair in Catalysis, Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, Kingdom of Saudi Arabia
摘    要:A chromatographic method and a dynamic Wicke-Kallenbach method (DMWK) were used to determine the diffusion characteristics of two industrial copper containing catalysts. The first catalyst was used in nitrobenzene hydrogenation to aniline and the second was used in a low temperature water-gas shift reaction. Experimental results show that application of these two methods leads to similar results. Experimental data obtained allow for monitoring changes in the texture of the catalyst grains and intraparticle diffusivity of gaseous reagents at different states of the catalyst activity and use, which can be used as criteria for designing optimal industrial catalyst pellets.

关 键 词:effective diffusion coefficient  tortuosity  copper catalyst  pellet design

Use of Intraparticle Mass Transfer Parameters as a Design Tool for Catalyst Pellets
L. PETROV,M. DAOUS,Y. ALHAMED,A. AL-ZAHRANI,Kh. MAXIMOV. Use of Intraparticle Mass Transfer Parameters as a Design Tool for Catalyst Pellets[J]. Chinese Journal of Catalysis, 2012, 0(7): 1166-1175
Authors:L. PETROV  M. DAOUS  Y. ALHAMED  A. AL-ZAHRANI  Kh. MAXIMOV
Affiliation:L. PETROV1,*, M. DAOUS1, Y. ALHAMED1, A. AL-ZAHRANI1, Kh. MAXIMOV2 1SABIC Chair in Catalysis, Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, PO Box 80204, Jeddah 21589, Kingdom of Saudi Arabia 2Institute of Catalysis, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
Abstract:A chromatographic method and a dynamic Wicke-Kallenbach method (DMWK) were used to determine the diffusion characteristics of two industrial copper containing catalysts. The first catalyst was used in nitrobenzene hydrogenation to aniline and the second was used in a low temperature water-gas shift reaction. Experimental results show that application of these two methods leads to similar results. Experimental data obtained allow for monitoring changes in the texture of the catalyst grains and intraparticle diffusivity of gaseous reagents at different states of the catalyst activity and use, which can be used as criteria for designing optimal industrial catalyst pellets.
Keywords:effective diffusion coefficient  tortuosity  copper catalyst  pellet design
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