Abstract
The solubility of hydrogen in pyrolysis gasoline (pygas) was measured within a temperature range of (298 to 343) K and pressures up to 6.0 MPa. The experimental method was validated by comparing the measured hydrogen solubilities in benzene and toluene with published data. The results showed that Henry's law was applicable in the range of operating conditions investigated. Moreover, the hydrogen solubilities in benzene, toluene, BTXS (a mixture composed of benzene, toluene, xylene, and styrene), and pygas increased not only with temperature and pressure, but also with the increase in the molecular weight. The steric effect of the alkyl group of monoaromatics on the hydrogen solubility was remarkable. The Soave−Redlich−Kwong cubic equation of state with the binary interaction parameters was used to predict the hydrogen solubility.
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