High-pressure fluid-phase equilibria: Experimental methods, developments and systems investigated (2013–2016)

High-Pressure Phase Behavior of CO2 + (C12/C14 n-Alkane and/or C8/C10 Carboxylic Acid and/or C12/C14 Methyl Ester) Systems

“…16,17 Both cells are identical in their operation and function on the piston cylinder principle using nitrogen as backpressure. The cells differ in that the internal volumes of the pressure chambers are different, with the smaller cell 16 having an internal volume of 45 cm 3 and the larger cell 17 having an internal volume of 80 cm 3 . A maximum pressure of 30 MPa is imposed on the cells for safety, and the pressure is measured by a ONEhalf20 pressure transducer (model no.…”

“…Phase equilibrium data are vitally important for industry to assess the feasibility or viability of process unit operations such as separation methods or techniques, as well as optimization of these unit operations. Although a large amount of low-pressure and high-pressure binary phase behavior data are available, considerably less ternary data are available. − Previous studies by Schwarz and co-workers − and Schneider and co-workers − considered the ternary phase behavior of carbon dioxide (CO 2 ) + n -alkane + 1-alcohol systems. These studies identified that the ternary systems displayed complex phase behavior, such as cosolvency, that could not be inferred from knowledge of the constituent binaries.…”