Elise El Ahmar

In the present study, calorimetric measurements were conducted to determine CO2 behavior in aqueous solutions of 30 and 50 wt % N-methyl diethanolamine (MDEA) and 40 + 10 wt % MDEA–piperazine (PZ) at 323.15 and 353.15 K at pressures from 0.5 to 4 MPa. The effects of temperature, pressure, MDEA concentration, and addition of PZ on the heat of absorption and CO2 solubility were investigated based on the calorimetric results, which were verified to be consistent with the vapor–liquid equilibrium...

Isothermal vapor–liquid equilibrium data for the binary mixture of carbon dioxide (CO ) and 1,1,1,3,3-pentafluorobutane (R365mfc) were measured at six isotherms ranging from 283.16 to 337.16 K, at pressures ranging from 0.7 to 9.1 MPa, and are presented. The measurements were performed using a “static-analytic” apparatus, equipped with two capillary ROLSI samplers, with phase analysis performed via gas chromatography.

Air contains impurities, which must be removed before its transformation and utilization. In the present work, new isothermal vapor–liquid equilibrium (VLE) data are reported for three binary systems containing NO with (CO, N , or Ar) at different temperatures (between 105 and 146 K) and pressures up to 4 MPa. The compositions of the coexisting phases were experimentally determined using an apparatus based on the “static-analytic” method.