Effective Axial Thermal Conductivity in Catalyst Packings from High Resolution Temperature Profiles1. Issue 11 (23rd September 2016)

• Record Type: Journal Article
• Authors: Sosna, Bahne; Dong, Ying; Chromow, Lukas; Korup, Oliver; Horn, Raimund
• Is Part Of: Chemie Ingenieur Technik. Volume 88:Issue 11(2016:Nov.)
• Page Start: 1676
• Page End: 1683
• Publication Date: 2016-09-23
• Subjects: Axial heat transport -- Catalyst support -- Effective thermal conductivity -- Packed bed -- Temperature profiles; Chemical engineering -- Patents -- Periodicals; Chemical engineering -- Periodicals; Chemical industry -- Periodicals; Chemistry, Technical -- Periodicals; 660.05
• DOI: 10.1002/cite.201600062
• Languages: English
• ISSNs: 0009-286X

Abstract

Abstract: The effective axial thermal conductivity is an essential parameter for an accurate description of heat transport in packed bed reactors. This work presents an experimental setup to determine this parameter from high‐resolution axial temperature measurements. The optimized measuring technique improved the procedure, solving issues reported by other studies, such as misalignment and disturbance of multiple thermocouples. Different materials were investigated: steel spheres, alumina spheres, and steatite hollow cylinders. Furthermore, correlations for these materials were determined. Abstract : One‐dimensional pseudo‐homogeneous models are frequently used to describe the heat transport in packed bed reactors. One important parameter in the model is the effective axial thermal conductivity. In this work, experimental results of the axial thermal conductivity of different packings are presented. Moreover, a correlation for spherical packings is recommended.