Process for devolatilizing natural gas liquids

Patent · Tue Dec 17 00:00:00 EST 1985

OSTI ID:5865341

Sweet, W C

A natural gas liquid which has been cryogenically extracted from a natural gas feed is devolatilized by removing a portion of the ethane from the liquid. The natural gas feed stream is initially split into two streams, the smaller part of the stream being fed to the bottom of a demethanizing absorber at a low temperature and the larger part of the stream being fed to the top of the absorber at a substantially lower cryogenic temperature. A methane-rich gas product is recovered from the top of the absorber while the methane-lean liquid in the bottom of the absorber is fed to a non-cryogenic deethanizer. A portion of the volatiles in the methane-lean liquid are removed in the deethanizer leaving a devolatilized natural gas liquid product.

• Assignee: Marathon Oil Co.
• Patent Number(s): US 4559070
• OSTI ID: 5865341
• Resource Relation: Patent File Date: Filed date 17 Jan 1985; Other Information: PAT-APPL-692131
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
NATURAL GAS LIQUIDS
CRYOGENICS
DEVOLATILIZATION
SEPARATION EQUIPMENT
DESIGN
ABSORPTION
ETHANE
EXTRACTION
METHANE
NATURAL GAS
RECOVERY
REMOVAL
ALKANES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCARBONS
LIQUIDS
ORGANIC COMPOUNDS
SEPARATION PROCESSES
030300* - Natural Gas- Drilling
Production
& Processing
420201 - Engineering- Cryogenic Equipment & Devices