Calorimetric determination of the heat of combustion of spent Green River shale at 978 K
A Calvet-type calorimeter was used to measure heats of combustion of spent Colorado oil shales. For Green River shale, the samples were members of a sink-float series spanning oil yields from 87 to 340 L . tonne/sup -1/. Shale samples (30-200 mg) are dropped into the calorimeter at high temperature, and a peak in the thermopile signal records the total enthalpy change of the sample between room temperature and the final temperature. Duplicate samples from the above sink-float series were first retorted at 773 K and then dropped separately into nitrogen and oxygen at 978 K. The resulting heats are subtracted to give the heat of combustion, and the results are compared to values from classical bomb calorimetry. The agreement shows that the heats of combustion of the organic component are well understood but that question remain on the reactions of the mineral components.
- Research Organization:
- Exxon Research and Engineering Co., Clinton Township, Annandale, NJ 08801
- OSTI ID:
- 5996063
- Journal Information:
- Ind. Eng. Chem. Res.; (United States), Vol. 26:8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SPENT SHALES
CALORIMETRY
COMBUSTION HEAT
CALORIMETERS
CHEMICAL REACTION KINETICS
ENTHALPY
GREEN RIVER FORMATION
HIGH TEMPERATURE
OIL YIELDS
RETORTING
SAMPLING
TEMPERATURE MEASUREMENT
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY
GEOLOGIC FORMATIONS
HEAT
KINETICS
MEASURING INSTRUMENTS
PHYSICAL PROPERTIES
REACTION HEAT
REACTION KINETICS
THERMODYNAMIC PROPERTIES
YIELDS
040500* - Oil Shales & Tar Sands- Properties & Composition