Gas-solid reactions in chemical and metallurgical industries often involve solid pellets and a gaseous reactant. The progress of chemical reaction is measured by the movement of zones within the pellet and has been explained in terms of diffusion and chemical reaction processes. Earlier models ident
A diffuse interface model for fluid—solid reaction
✍ Scribed by J.H. Bowen; C.K. Cheng
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- English
- Weight
- 226 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
Shorter Communications kinetic constant of IInd order reactions, cm3/ V molessec V respectively, fraction of volume occupied by zz,z n stirred nucleus, occupied by recycle stream, not occupied by stagnant zones, dimension-z2.W zzs less mixer volume, cm3 feed rate, cm%ec by-pass fluid fraction, dimensionless order of the reaction stirrer revolutions per second, set-' respectively, conversion yield for IInd and for n order reaction, dimensionless respectively, conversion yield of IInd order reaction for molecular mixing and for complete segregation, dimensionless fraction of rate leaving the stirred nucleus which Week symbols recycles, dimensionless recurrent summation parameter in (2), dimen-1 1 sionless 00 (y , ; *=0 DpN/p Reynolds rotational number, dimensionless CL Vp/Dp Reynolds translational number, dimen-P sionless a21t,2 function defined by (4), dimensionless CL/@ Schmidt number, dimensionless Ei( y respectively, mean residence time (mr,) and Y( )
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