Abstract
Liquid catalyzate containing thiophene has been obtained from the gas formed in semicoking of kukersite shale by means of heterocyclization over an alumina-chromium-lanthanum lanthanum oxide catalyst. The thiophene concentration in the catalyzate is 1.5–2 times higher than in industrial byproduct coking thiophene concentrate. At the same a reduction in the hydrogen sulphide content of the semicoking gas from 9–12% to 0·5 vol.% or less has been obtained.
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