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Measurements are reported for vapor pressures and saturated liquid densities of characterized fossil-fuel fractions. Vapor pressures were measured for 12 fractions and densities for 30 fractions. The fractions originated from crude oils, coal liquid, and tar sands. Initial atmospheric boiling points of the fractions range from 492 to 700 K. Vapor pressures to 575 K were measured by using an ebulliometer; between 1 and 7 wt % of the sample was vaporized during these measurements. Saturated liquid densities were measured between 292 and 578 K by using sealed glass cells heated in an air bath. For most samples, the measured properties showed only small observable effects of cracking. The data reported may be useful for testing correlations used in process-design calculations.

Vapor pressures and saturated-liquid densities of heavy fossil fuel fractions