Separation property of silicalite-1 membrane for C
10 hydrocarbons was investigated. Silicalite-1 membrane was prepared on a tubular support (pore size = 0.15 μm, i.d. = 7 mm, o.d. = 10mm) by secondary-growth method.
n-Decane,
n-butylbenzene and tetralin were used for model substance of C
10 hydrocarbons.
n-Decane and
n-butylbenzene could penetrate through the membrane but tetralin permeation was not observed. Thus permeance ratio of
n-decane to tetralin was over 100. As a result, it was shown that C
10 hydrocarbons can be separated with silicalite-1 membrane by molecular sieving effect.
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