Vapor pressures and heats of vaporization of primary coal tars. Quarterly technical progress report, 1 January 1993--31 March 1993
The vapor pressure correlations that exist at present for high molecular weight organics are very crude and they are not considered reliable to even an order of magnitude when applied to tars. The present project seeks to address this important gap in the near term by direct measurement of vapor pressures of coal tar fractions, by application of well-established techniques and modifications thereof. The principal objectives of the program are to: (1) obtain data on the vapor pressures and heats of vaporization of tars from a range of ranks of coal, (2) develop correlations based on a minimum set of conveniently measurable characteristics of the tars, (3) develop equipment that would allow performing such measurements in a reliable, straightforward fashion. It has been concluded that the saturation method holds significant promise as technique for measuring vapor pressures of pure components in the correct molecular weight regime. There are several aspects of experimental design that need further work in to improve performance. Most critical is the saturator device.
- Research Organization:
- Brown Univ., Providence, RI (United States). Div. of Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-92PC92544
- OSTI ID:
- 10164744
- Report Number(s):
- DOE/PC/92544-3; ON: DE93017009
- Resource Relation:
- Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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