Measurements of the physical and thermodynamic properties of products resulting from coal hydroliquefaction
The aim of this work was to design and set up special equipment to measure vapour-liquid equilibria of oil-hydrogen systems, and to measure these equilibria at temperatures between 523 and 673 K for pressures between 5 and 25 MPa. These thermodynamic data are useful for the optimisation of hydrogenation plants. The equilibrium cell with its peripherals, the analytical method and the experimental procedure are presented, together with the experimental results. Improvements carried out included the use of a microprocessor to monitor the samples and the different stages of the sample analyses. Very few sample analyses were found to be usable because most of them were performed under incorrect conditions (during the period of setting up the apparatus). Among the few analyses retained, some are not reliable, and only trends in hydrogen solubilities and oil compositions can be described as a function of total pressure.
Bibliographic Reference: EUR 13811 FR (1991) 130 pp., MF, ECU 8
Record Number: 199110984 / Last updated on: 1994-12-02
Original language: fr
Available languages: fr