A Continuous Extraction and Pumpless Supercritical CO2 Drying System for Laboratory-Scale Aerogel Production
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چکیده
منابع مشابه
A Continuous Extraction and Pumpless Supercritical CO2 Drying System for Laboratory-Scale Aerogel Production
Production of aerogels starts with solution chemistry and may end with supercritical carbon dioxide drying, which both require a specialized system. Here we present a complete aerogel production system that was developed and used in our laboratory over the last nine years. Our aim was to develop a supercritical dryer and a protocol, whereby the CO2 pump can be left out, and the entire flow syst...
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Due to high surface area, low density, open pore structure and excellent insulation properties aerogels were intensively investigated in the past decades for diverse range of applications. The state of the art of aerogel production by supercritical drying is to produce monolithic aerogel, where the sol is aged in molds and dried by extraction with supercritical CO2. Aerogels in form of spherica...
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In the present study, Radix Codonopsis was extracted by supercritical CO2 extraction. As Ointment collecting rate and the yield of stigmasterol are index, Various reaction parameters were changed to attain the optimal conditions. The appropriate process conditions are size 40 60Mesh, 30 Mpa pressure, temperature 65 °C, 120 min, entrainer Alcohol dynamic extraction (entrainer pump flow rate of 1...
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Extraction of ethanol was studied from both synthetic ethanol solution and fermentation broth using supercritical CO2 in an extraction apparatus in ranges of 313 to 333 K and 80 to 160 atmospheres, for varying extraction times. The experimental system consists mainly of four parts: a CO 2 storage system, a high-pressure liquid pump, an extractor and a product collection unit. Samples were analy...
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No. D16.J.M. Snyder, J. Food Lipids, 2 ( 1995) 25.J.W. King. J.H. Johnson and F.J. Eller, Anal. Chem., 67 ( 1995) 14.J.W. King, J.H. Johnson, S.L. Taylor, W.L. Ortonand M.L. Hopper, J. Supercrit. Fluids, 8 (1995)
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ژورنال
عنوان ژورنال: Gels
سال: 2016
ISSN: 2310-2861
DOI: 10.3390/gels2040026