Method and apparatus for liquifying natural gas for fuel for veh

Details Method and apparatus for liquifying natural gas for fuel for veh Method and apparatus for liquifying natural gas for fuel for veh

1993-05-12

1994-07-12

Capossela, Ronald C.

Refrigeration

Using electrical or magnetic effect

Thermoelectric; e.g., peltier effect

62 7, 62 36, F25J 100

Patent

active

053277309

ABSTRACT:
Method for liquifying natural gas comprising regulating the pressure of the natural gas from a pressure ranging from 0-25 psig. Contaminants are filtered out of the regulated natural gas. The natural gas is then compressed to a higher pressure. At least a one-stage heat exchange is performed with the compressed natural gas by utilizing a coolant to provide a cooled compressed natural gas. A Joule Thompson valve is used to liquify at least a portion of the cooled compressed natural gas. The liquified natural gas is stored in a dewar. Unliquified natural gas passing from the dewar is utilized to provide cooling of the natural gas during the heat exchange. The unliquified natural gas is then recompressed. The recompressed natural gas is subjected to the same steps to liquify an additional portion of the recompressed natural gas.

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