Viscosity and rheological behavior of carbon dioxide-expanded fish oil fatty acid ethyl esters: Measurement using a rotational viscometer and modeling |
| |
| Affiliation: | 1. Institute of Process Engineering (IPE), ETH Zurich, Sonneggstrasse 3, 8092 Zurich, Switzerland;2. RMS Foundation, Bischmattstrasse 12, 2544 Bettlach, Switzerland;1. Faculty of Pharmacy, International Islamic University Malaysia, Kuantan Campus, 25200 Kuantan, Pahang, Malaysia;2. NARO Hokkaido Agricultural Research Center (NARO/HARC), Shinsei, Memuro, Kasai 082-0081, Hokkaido, Japan;3. School of Chemistry, Monash University, Wellington Road, Clayton 3800, VIC, Australia;4. Food Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800 Pulau, Pinang, Malaysia;5. Department of Chemical Engineering, Research Center of Supercritical Fluid Technology Tohoku University, Aoba-ku, Aramaki Aza Aoba 6-6-11, Sendai 980-8579, Japan;1. Department of Imaging System Engineering, Pukyong National University, Busan 608-737, Republic of Korea;2. Chemistry Laboratory, College of Engineering, Kyungil University, Hayang 712-701, Republic of Korea;3. Department of Physics, Institute of Basic Sciences, Sungkyunkwan University, Suwon 440-746, Republic of Korea;1. School of Mechanical & Power Engineering, Shanghai Jiaotong University, Shanghai 200240, China;2. Instrumental Analysis Center, Shanghai Jiaotong University, Shanghai 200240, China;1. Polymers & Composites, Council for Scientific & Industrial Research (CSIR), PO Box 395, Pretoria, South Africa;2. Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Salerno, Italy;3. Research Centre for Nanomaterials and Nanotechnology (NANOMATES), Salerno University, Salerno, Italy |
| |
| Abstract: | The viscosity of fish oil fatty acid ethyl esters (FAEE) in equilibrium with CO2 was determined at 40, 55, and 70 °C and pressures ranging from 0.1 to about 12 MPa using a rotational rheometer equipped with a high pressure cell. Viscosity of CO2-expanded (CX) FAEE decreased due to the dissolution of CO2 with pressure, which was temperature dependent. The viscosity of CX FAEE was correlated using a new empirical model utilizing saturation pressure and temperature with temperature-dependent parameters, which allows interpolation of viscosity data for any pressure and temperature within the envelope of this study. As well, viscosity was modeled using available data for CO2 solubility in FAEE at specific temperatures of this study utilizing simpler models with only one parameter, such as the Grunberg and Nissan model. The rheological data suggest shear thickening behavior of CX FAEE at elevated pressures. The limitations of the rotational rheometer for measuring CX liquids at viscosities below 1 mPa s are discussed. Understanding of viscosity and rheological behavior of CX FAEE is essential for equipment and process design involving such lipids. |
| |
| Keywords: | Dilatant Fatty acid ethyl esters Fish oil Gas-expanded lipids Non-Newtonian Rheology |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
