L. A. Polevoi, D. A. Sandzhieva, A. E. Baranchikov, A. D. Gaizullin, B. V. Ubushaeva, V. K. Ivanov, V. M. Buznik, A. G. Dedov
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引用次数: 0
Abstract
Improved hydrophobic silica aerogels for oil sorption were synthesized using a two-step sol–gel process. The structure and composition of the obtained aerogels were studied using IR spectroscopy, low-temperature nitrogen adsorption, scanning electron microscopy, and thermal analysis. The functional properties were assessed by studying the sorption kinetics of heavy crude oil and oil capacity, moisture capacity, and water contact angle. It has been shown that the use of different ratios of alkoxides during synthesis makes it possible to vary the textural and sorption characteristics of silica aerogels, which have low moisture capacity (0–1 g/g) and a high sorption rate (the maximum sorption oil capacity of 11.5 g/g is achieved in 10 min).
期刊介绍：
Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.
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