DOI: 10.1002/aic.690290118. Tortuosity factors for diffusion in catalyst pellets

Tortuosity factors for diffusion in catalyst pellets

10.1002/aic.690290118

Crossref journal-article

Wiley

AIChE Journal (311)

Abstract

AbstractThe dynamic pulse‐response technique was used to measure effective diffusivities under nonreacting conditions in two, unsulfided, extrudate‐type, hydrodesulfurization catalyst pellets of different porosities. Pore‐volume distribution data showed a bidisperse pore structure with a broad pore‐size range (100 μm to 3 nm).The main purpose of the study was to evaluate various methods for calculating the tortuosity factor, τ. For this particular catalyst, the most constant and unreasonable values of τ were obtained by supposing that diffusion occurred in all the pore volume (micro and macropores) and by summing the combined Knudsen and bulk contributions over each increment of pore volume.

Bibliography

Wang, C., & Smith, J. M. (1983). Tortuosity factors for diffusion in catalyst pellets. AIChE Journal, 29(1), 132â136. Portico.

Authors 2

Chang‐Tai Wang (first)
J. M. Smith (additional)

References 5 Referenced 68

10.1002/aic.690210106
10.1063/1.1732211
10.1002/aic.690200407
{'key': 'e_1_2_1_5_1', 'first-page': '33', 'volume-title': 'Mass Transfer in Heterogeneous Catalysis', 'author': 'Satterfield C. N.', 'year': '1970'} / Mass Transfer in Heterogeneous Catalysis by Satterfield C. N. (1970)
10.1016/0009-2509(62)87015-8

Dates

Type	When
Created	21 years, 1 month ago (June 23, 2004, 9:03 a.m.)
Deposited	1 year, 10 months ago (Oct. 19, 2023, 9:23 p.m.)
Indexed	1 month, 2 weeks ago (July 8, 2025, 12:08 a.m.)
Issued	42 years, 7 months ago (Jan. 1, 1983)
Published	42 years, 7 months ago (Jan. 1, 1983)
Published Online	21 years, 2 months ago (June 17, 2004)
Published Print	42 years, 7 months ago (Jan. 1, 1983)

Funders 0

None

BibTeX

@article{Wang_1983, title={Tortuosity factors for diffusion in catalyst pellets}, volume={29}, ISSN={1547-5905}, url={http://dx.doi.org/10.1002/aic.690290118}, DOI={10.1002/aic.690290118}, number={1}, journal={AIChE Journal}, publisher={Wiley}, author={Wang, Chang‐Tai and Smith, J. M.}, year={1983}, month=jan, pages={132–136} }

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