Journal
CHINESE JOURNAL OF CHEMICAL ENGINEERING
Volume 36, Issue -, Pages 57-66Publisher
CHEMICAL INDUSTRY PRESS CO LTD
DOI: 10.1016/j.cjche.2020.08.017
Keywords
Absorption; Ethylene; N-methyl-2-pyrrolidone (NMP); Nanoparticles; Solubility
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The study shows that the presence of silver nanoparticles in NMP solvent can enhance the absorption performance of ethylene gas, with an improvement between 1.5% to 18%. Temperature, pressure, and nanoparticle concentration were found to have an impact on the equilibrium results.
The effect of presence of silver nanoparticles in pure N-methyl-2-pyrrolidone (NMP) solvent for ethylene gas absorption in an experimental pressure decaying setup has been investigated. All experiments were performed at temperatures of 278.15 K, 298.15 K and 328.15 K and different pressures (up to ethylene dew point) as well as different concentrations of silver nanoparticles (0.05 g.L-1 and 0.1 g.L-1). The kinetic data of absorption, Henry's lawconstants, and heat of absorption were calculated. Comparison of the pure solvent and the nanofluids absorption results revealed that the presence of small amounts of nanoparticles could improve the absorption performance between 1.5% - 18%. Finally, the effect of temperature, pressure, and nanoparticle concentration on the equilibrium results were investigated. (C) 2020 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
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