Distillation of methane from a methane-containing crude gas
Patent
·
OSTI ID:7080312
In the separation in a rectification column of methane and optionally lower-boiling components from a methane-containing crude gas, which gas contains additionally higher-boiling hydrocarbons, hydrogen sulfide, carbon dioxide, or mixtures thereof, wherein an auxiliary cycle containing a fluid medium is employed for the production of cooling to produce reflux liquid at the head of the rectifying column, a method is provided wherein liquid in the rectifying column positioned above the column sump and below the column head, is vaporized in indirect heat exchange with condensing cycle medium. 6 claims.
- Assignee:
- Linde AG
- Patent Number(s):
- US 4230469
- OSTI ID:
- 7080312
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
090120 -- Hydrocarbon Fuels-- Preparation-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
DISPERSIONS
DISTILLATION
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
METHANE
MIXTURES
NATURAL GAS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SULFIDES
SULFUR COMPOUNDS
030300* -- Natural Gas-- Drilling
Production
& Processing
090120 -- Hydrocarbon Fuels-- Preparation-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
DISPERSIONS
DISTILLATION
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
METHANE
MIXTURES
NATURAL GAS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SULFIDES
SULFUR COMPOUNDS