Solving gas-processing problems. Part 8. Expansion processes, turboexpander efficiency vital for predicting liquid-recovery levels

Journal Article · Mon Jul 06 00:00:00 EDT 1981 · Oil Gas J.; (United States)

OSTI ID:7037523

Erbar, J H; Maddox, R N

Expansion processes, using either Joule-Thomson or isentropic principles play an important role in the processing of natural gas streams for liquid recovery and/or hydrocarbon-dewpoint control. Constant-enthalpy expansion has been an integral part of gas processing schemes for many years. The constant entropy, or isentropic, process is more recent but has achieved wide-spread popularity. In typcial flow sheets for expansion processess, the expansion device is shown to be a value or choke. It also could be an expansion turbine to indicate an isentropic expansion. The expansion may be to lower pressure; or, in the case of turboexpansion, it could recover material or produce work. More frequently, the aim of the expansion is to produce low temperature and enhance liquid recovery.

• OSTI ID: 7037523
• Journal Information: Oil Gas J.; (United States), Vol. 79:27
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
NATURAL GAS
EXPANSION
PROCESSING
ENTHALPY
ENTROPY
FLOWSHEETS
MATERIALS RECOVERY
PRESSURE CONTROL
TEMPERATURE CONTROL
TURBOMACHINERY
VALUES
CONTROL
DIAGRAMS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MACHINERY
MANAGEMENT
PHYSICAL PROPERTIES
RECOVERY
THERMODYNAMIC PROPERTIES
WASTE MANAGEMENT
WASTE PROCESSING
030300* - Natural Gas- Drilling
Production
& Processing