The solubility of hydrogen in toluene in the presence of the compressed CO2 at the temperatures from 305 to 343K and the pressures from 1.2 to 10.5MPa was measured by using a continuous flow technique. The obtained data indicate that more hydrogen could be dissolved in toluene at the pressures higher than a certain value depending on temperature and the molar ratio of H2 to CO2 in gas. The Peng Robinson equation of state associated with the van der Waals mixing rule were found to correlate the VLE data of the ternary system H2 +CO2 + toluene satisfactorily. From the volume expansion resulted from the dissolution of CO2 in toluene calculated by the proposed model, it was found that hydrogen solubility was generally increased with increasing volume expansion. A large volume expansion was required to enhance hydrogen solubility when the mole fraction of hydrogen in gas was low.
Compounds
#
Formula
Name
1
C7H8
toluene
2
CO2
carbon dioxide
3
H2
hydrogen
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.