JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
CONTINUOUS SEPARATION OF GAS MIXTURE BY THERMAL DIFFUSION COLUMN
TAKAO KOKUGANMASARU SHIMIZU
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1974 Volume 6 Issue 5 Pages 426-432

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Abstract

As the concentration of the mixture at the feed position (z=0), C0, is usually different from that of the feed gas, CF, the transport equations were solved under the boundary condition of C=C0 at z=0, to obtain the separation performance in a thermal diffusion column. To check the calculated results, a thermal diffusion column which consists of two concentric vertical cylinders was used3 and separation of the binary gas mixture He-Ar was made.
From the experimental results, it was found that concentrations of both product and waste (or top and bottom) depend sensitively on the cut, that is, the ratio of enriched product flow rate to the feed flow rate(β), but only slightly on feed position(ζ0).
The experimental results were in good agreement with the calculated results under the boundary condition of C=C0 at z= 0.
An engineering method is presented by which the separation characteristics will simply and graphically be obtained.

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