Enthalpy measurements on a syncrude, derived from a western Kentucky coal

Conference · Fri Dec 31 23:00:00 EST 1976 · Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States)

OSTI ID:6177047

Kidnay, A J; Fleckenstein, R R

The measurements were carried out at 65/sup 0/ to 700/sup 0/F and 100 to 1500 psia in a Freon-11 reference calorimeter. The increase in enthalpy with temperature was slightly greater than linear, particularly at high temperature. Pressures between 500 and 1500 psia had no effect on the enthalpy since the sample at these pressures was liquid at all temperatures. At high temperature, the enthalpy was greater at 100 than at 500 psia as a result of partial vaporization. Problems were observed due to thermal cracking of the sample in the inlet at 600/sup 0/F and 500 psia, possibly as a result of catalysis of the stainless steel walls.

• Research Organization: Colorado School of Mines, Golden
• OSTI ID: 6177047
• Journal Information: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States), Journal Name: Prepr. Pap. - Am. Chem. Soc., Div. Fuel Chem.; (United States) Vol. 22:6; ISSN ACFPA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010600* -- Coal
Lignite
& Peat-- Properties & Composition
CALORIMETRY
CHEMICAL REACTIONS
COAL LIQUEFACTION
COED PROCESS
CRACKING
DECOMPOSITION
ENTHALPY
FUELS
HIGH PRESSURE
HIGH TEMPERATURE
LIQUEFACTION
LOW TEMPERATURE
MEDIUM PRESSURE
PHYSICAL PROPERTIES
PYROLYSIS
SYNTHETIC FUELS
SYNTHETIC PETROLEUM
THERMAL CRACKING
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES