Hatta number

The Hatta number (Ha) was developed by Shirôji Hatta, who taught at Tohoku University. It is a dimensionless parameter that compares the rate of reaction in a liquid film to the rate of diffusion through the film. For a second order reaction (rA = k2CBCA), the maximum rate of reaction assumes that the liquid film is saturated with gas at the interfacial concentration (CA,i); thus, the maximum rate of reaction is k2CB,bulkCA,iδL.



For a reaction mth order in A and nth order in B:



It is an important parameter used in Chemical Reaction Engineering.


This page was last updated at 2021-12-05 00:14 UTC. Update now. View original page.

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