Continuous Liquid–Liquid Extraction and in-Situ Membrane Separation of Miscible Liquid Mixtures
| العنوان: | Continuous Liquid–Liquid Extraction and in-Situ Membrane Separation of Miscible Liquid Mixtures |
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| المؤلفون: | Joseph M. Mabry, Anish Tuteja, Gibum Kwon, Andrew J. Guenthner, Arun K. Kota, Josiah T. Reams, Ethan Post, Kevin R Lamison, Chao Li, David L. Speer |
| المصدر: | Langmuir. 37:13595-13601 |
| بيانات النشر: | American Chemical Society (ACS), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Materials science, Extraction (chemistry), Surfaces and Interfaces, Condensed Matter Physics, Unit operation, Supercritical fluid, law.invention, Membrane technology, Membrane, Chemical engineering, law, Liquid–liquid extraction, Mass transfer, Electrochemistry, General Materials Science, Distillation, Spectroscopy |
| الوصف: | Separation operations are critical across a wide variety of manufacturing industries and account for about one-quarter of all in-plant energy consumption in the United States. Conventional liquid-liquid separation operations require either thermal or chemical treatment, both of which have a large environmental impact and carbon footprint. Consequently, there is a great need to develop sustainable, clean methodologies for separation of miscible liquid mixtures. The greatest opportunities to achieve this lie in replacing high-energy separation operations (e.g., distillation) with low-energy alternatives such as liquid-liquid extraction. One of the primary design challenges in liquid-liquid extraction is to maximize the interfacial area between two immiscible (e.g., polar and nonpolar) liquids for efficient mass transfer. However, this often involves energy-intensive methods including ultrasonication, pumping the feed and the extractant through packed columns with high tortuosity, or using a supercritical fluid as an extractant. Emulsifying the feed and the extractant, especially with a surfactant, offers a large interfacial area, but subsequent separation of emulsions can be energy-intensive and expensive. Thus, emulsions are typically avoided in conventional extraction operations. Herein, we discuss a novel, easily scalable, platform separation methodology termed CLEANS (continuous liquid-liquid extraction and in-situ membrane separation). CLEANS integrates emulsion-enhanced extraction with continuous, gravity-driven, membrane-based separation of emulsions into a single unit operation. Our results demonstrate that the addition of a surfactant and emulsification significantly enhance extraction (by >250% in certain cases), even for systems where the best extractants for miscible liquid mixtures are known. Utilizing the CLEANS methodology, we demonstrate continuous separation of a wide range of miscible liquid mixtures, including soluble organic molecules from oils, alcohols from esters, and even azeotropes. |
| تدمد: | 1520-5827 0743-7463 |
| DOI: | 10.1021/acs.langmuir.1c01985 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78355d249d5b1915b242cc21a569f0a0 https://doi.org/10.1021/acs.langmuir.1c01985 |
| Rights: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....78355d249d5b1915b242cc21a569f0a0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15205827 07437463 |
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| DOI: | 10.1021/acs.langmuir.1c01985 |