Liquidfaction of natural gas using process-loaded expanders
Patent
·
OSTI ID:5596977
This patent describes a process for liquefying a pressurized gaseous feedstream. It comprises: compressing the pressurized gaseous feedstream in a first compressor from a first pressure to a second pressure to yield a compressed feedstream; cooling and liquefying the compressed feedstream by indirect heat exchange with a first and a second vaporizing multicomponent refrigerant stream in a cryogenic heat exchanger; expanding the resulting liquefied feedstream in a first expander wherein expansion work from the first expander drives the first compressor; and withdrawing a liquefied gas product from the first expander.
- Assignee:
- Air Products and Chemicals, Inc., Allentown, PA (USA)
- Patent Number(s):
- A; US 4970867
- Application Number:
- PPN: US 7-396577
- OSTI ID:
- 5596977
- Country of Publication:
- United States
- Language:
- English
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