SOLUBILITY OF FISH-OIL FATTY-ACID ETHYL-ESTERS IN SUBCRITICAL AND SUPERCRITICAL CARBON-DIOXIDE

Mutual solubilities and K-values of fish oil fatty acid ethyl esters, prepared from sand launce oil, and sub- and supercritical carbon dioxi de have been measured in an apparatus originally designed for phase eq uilibrium, density and gas-oil ratio measurements of reservoir fluids. The measurements were performed at pressures from 2 to 22 MPa at temp eratures of 283.2, 313.2 and 343.2-degrees-K. Experimental temperature s, pressures, solubilities, K-values and densities are reported. The K -values of ethyl myristate, palmitate, oleate, eicosapentaenoate and d ocosahexaenoate are compared with published experimental binary and/or multicomponent data. Because both vapor and liquid solubilities are r eported, such data are applicable in the design of supercritical extra ction plants.