基于二氧化硅气凝胶的新型疏水吸油剂

IF 0.7 4区 工程技术 Q4 ENGINEERING, CHEMICAL
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

摘要

采用溶胶-凝胶两步法合成了改进的疏水二氧化硅吸油气凝胶。采用红外光谱、低温氮吸附、扫描电镜和热分析等方法对所得气凝胶的结构和组成进行了研究。通过研究其对重质原油的吸附动力学、吸油能力、吸湿能力和水接触角来评价其功能特性。研究表明,在合成过程中使用不同比例的烷氧化物,可以改变二氧化硅气凝胶的结构和吸附特性,使其具有较低的吸湿能力(0-1 g/g)和较高的吸附速率(在10分钟内达到11.5 g/g的最大吸油能力)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

New Hydrophobic Oil Sorbents Based on Silica Aerogels

New Hydrophobic Oil Sorbents Based on Silica Aerogels

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).

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来源期刊
CiteScore
1.20
自引率
25.00%
发文量
70
审稿时长
24 months
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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