Methods and systems for reducing pressure of natural gas and methods and systems of delivering natural gas
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United States of America Patent
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Apr 18, 2017
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N/A
app pub date -
Sep 15, 2014
filing date -
Sep 8, 2009
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Abstract
Methods and systems for reducing a pressure of compressed natural gas and for delivering natural gas are disclosed. A regulator comprising a vortex tube may be used to reduce the pressure of compressed natural gas while a temperature thereof is also reduced. The temperature reduction associated with a pressure drop in the compressed natural gas is achieved by throttling the gas at constant enthalpy from 3,000 psig to 150 psig through the regulator. At least one heat exchanger may be utilized to increase the temperature of the compressed natural gas to a temperature suitable for injection delivery. A pressure-reducing regulator may be used to further reduce a pressure of the gas to about 45 psig for delivery to an end-user.
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