Health & Environmental Research Online (HERO)


Print Feedback Export to File
8096717 
Journal Article 
Solubility and partial miscibility of ethane in certain hydrocarbon liquids 
Estrera, SS; Arbuckle, MM; Luks, KD 
1987 
Yes 
Fluid Phase Equilibria
ISSN: 0378-3812 
35 
1-3 
291-307 
English 
The solubility of ethane in n-undecane, 1-undecene, trans-decalin, n-pentylbenzene, 1-methylnaphthalene, and 2-methylnaphthalene is experimentally studied at 25 and 45°C. Also reported is the liquid molar volume of these mixtures. Both the methylnaphthalenes are partially miscible with ethane. The liquid-liquid-vapor locus for ethane + 1-methylnaphthalene extends from a quadruple point (solid-liquid-liquid-vapor) at 220.75 K and 4.98 bar to an upper critical end-point (L1-L2 = V) at 311.89 K and 53.57 bar. The same locus for ethane + 2-methylnaphthalene extends from 278.77 K and 26.29 bar to 313.00 K and 54.59 bar. The liquid phase compositions and molar volumes along these loci are reported as well as those along the solid-liquid-vapor locus of the mixture ethane + 2-methylnaphthalene that extends from the triple point of 2-methylnaphthalene (c. 304.15 K) to the quadruple point terminus of the liquid-liquid-vapor locus. The presence of aromatic groups in these hydrocarbons of similar carbon number significantly reduces the ethane solubility at given temperatures and pressures, making aromatic hydrocarbons likely candidates for exhibiting partial miscibility with ethane. © 1987.