Control system and method for pressure-let-downs stations

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United States of America Patent

PATENT NO 10677392
APP PUB NO 20180356044A1
SERIAL NO

15780731

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A system for depressurizing a gas in a pipeline is described. The system com-prises an expander configured and arranged for generating mechanical power by expanding gas from a first pressure to a second pressure. The system further comprises a heat pump and a heat transfer circuit containing a heat transfer fluid circu-lating therein, for receiving heat from the heat pump and delivering heat to the gas through a heat exchanger. A controller is further provided, configured and arranged for modulating a flow rate of the heat transfer fluid circulating in the heat transfer circuit as a function of a heat rate to be transferred from the heat transfer fluid to the gas, particularly as a function of temperature differentials between the gas and the heat transfer fluid at a gas inlet side and a gas outlet side of the heat exchang-er.

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Patent Owner(s)

  • NUOVO PIGNONE SRL

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amidei, Simone Florence, IT 8 33
Monti, Francesca Florence, IT 2 27

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