Сверхкритические флюиды. Теория и практика
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2015, N2, pp. 04-16

F.M. Gumerov, M.I. Farakhov, V.F. Khayrutdinov, R.F. Gabitov, Z.I. Zaripov, I.Sh. Khabriyev, T.R. Akhmetzyanov

Improvement of Functionality of Carbonate Macadam via Supercritical Fluid Impregnation with Bituminous Compounds

A comprehensive process for deasphaltizing of heavy oil residue and subsequent treatment (impregnation using a solvent in supercritical fluid state) of a carbonate macadam by bituminous compounds (deasphaltizate) is developed. The purpose is to improve its functionality of the material and, above all, to reduce its water absorption capacity. The process parameters are specified based on the newly obtained data on thermal capacity of heavy oil residue and deasphaltizate. The results of the process experimental realization and characteristics of impregnated macadam, including the water absorption capacity decreased from 3.6 to 0.54 %, are presented.

Key words: propane-butane mixture, supercritical fluid state, deasphaltizate, solubility, carbonate macadam, impregnation

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