Apparatus for reliquefying boil-off natural gas from a storage tank
In a combination of apparatus for storing liquefied natural gas which includes an insulated separation tank in which solidified carbon dioxide is settled out of liquefied natural gas and a liquefied natural gas-solidified carbon dioxide slurry accumulates, an insulated liquefied natural gas storage tank, and a conduit for delivering liquefied natural gas from the separation tank to the storage tank, the improvement comprising a conduit for withdrawing natural gas boil-off from the storage tank and feeding it to a compressor, a conduit for feeding compressed natural gas boil-off from the compressor to a heat exchanger for indirect heat exchange with a liquefied natural gas -solidified carbon dioxide slurry in the separation tank to cool the compressed natural gas to reliquefied natural gas, and a conduit to feed the reliquefied natural gas from the heat exchanger to the storage tank.
- Assignee:
- Chicago Bridge and Iron Co
- Patent Number(s):
- US 4187689
- OSTI ID:
- 5823993
- Country of Publication:
- United States
- Language:
- English
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System for reliquefying boil-off vapor from liquefied gas
Process and apparatus for the storage and transportation of liquefied gases
Related Subjects
035000* -- Natural Gas-- Storage-- (1989-)
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
COMPRESSION
CONTAINERS
DISPERSIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
LIQUEFACTION
LIQUEFIED GASES
LIQUEFIED NATURAL GAS
MIXTURES
NATURAL GAS
OXIDES
OXYGEN COMPOUNDS
SLURRIES
STORAGE FACILITIES
SUSPENSIONS
TANKS
THERMOCHEMICAL PROCESSES