Relationships between surface diffusivity and pore diffusivity in batch adsorption: measurements of the diffusivities for n-hexane and n-decane in 5 Å molecular sieves
✍ Scribed by S. Kaguei; N. Wakao
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 447 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
height of a unit cell, normalized with dp height at which coordinate periodicity occurs, normalized with dp k* N. 4P r 'P r* z* R:, R4 [=(rz' -R:' + w*')/~w*] number of spheres per unit height in a unit cell specific lateral surface area at r* r-coordinate of the sphere particle radius dimensionless radial coordinate (= r/d,) thickness of a CCC t V* W* dimensionless thickness of a CCC ( = Arid,) radius of cylinder used in defining cap, slice, rodlike or annular ring segment of a sphere, normllized with d, (= r;* -y*q lateral surface area of a sphere segment, normalized with the lateral surface area of the sphere [= E:+ -(y* -w+P] volume of a sphere segment, normalized with the volume of the sphere horizontal distance between the axis of the column and the center of the sphere, normalized with d, xi x-coordinate of the center of the ith sphere Yl y-coordinate of the center of the ith sphere Y' dimensionless Y-coordinate ( = y/d,) =i z-coordinate of the center of the ith sphere Greek letters e0 overall void fraction er* void fraction at r* 01 &coordinate of the center of the ith sphere-REFERENCES