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公开(公告)号：US20150184930A1
公开(公告)日：2015-07-02
申请号：US14415109
申请日：2013-07-04
Applicant: SAIPEM S.A.
Inventor： Marc Bonnissel , Bertrand Du Parc , Boris Bolosier
CPC classification number: F25J1/0022 , F17C13/082 , F25J1/0055 , F25J1/0214 , F25J1/0278 , F25J1/0291 , F25J1/0292 , F25J1/0296 , F25J2205/90 , F25J2240/60
Abstract: Process for liquefying natural gas in a cryogenic heat exchanger by flowing in indirect contact with refrigerant fluid entering heat exchanger at a first inlet at temperature T0 and pressure P1, and flowing through the exchanger as co-current with the natural gas stream, leaving the heat exchanger in the liquid state, then being expanded at the cold end of the exchanger to return to gaseous state at a pressure P′1 P1 and temperature T1 T0, before leaving the hot end of exchanger by outlet orifice in gaseous state T0. The fluid is then reliquefied to the inlet of the exchanger via compression followed by partial condensation and phase separation, a first liquid phase taken to the first inlet, a first gaseous portion compressed by a second compressor and cooled in desuperheater by contact with portion of the first liquid phase, prior to condensing in a second condenser.
Abstract translation: 在低温热交换器中液化天然气的方法，该方法是在温度为T0和压力P1的第一入口处与进入热交换器的制冷剂流体间接接触流动，并与天然气流并流流过交换器，留下热量 交换器处于液态，然后在交换器的冷端膨胀，在压力P'1 P1和温度T1 T0下返回气态，然后在气态T0下通过出口孔离开交换器的热端。 然后通过压缩将流体再液化到交换器的入口，随后部分冷凝和相分离，取出到第一入口的第一液相，由第二压缩机压缩的第一气态部分，并在过热降温器中通过与部分 在第二冷凝器中冷凝之前的第一液相。
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公开(公告)号：US10107549B2
公开(公告)日：2018-10-23
申请号：US14415109
申请日：2013-07-04
Applicant: SAIPEM S.A.
Inventor： Marc Bonnissel , Bertrand Du Parc , Boris Bolosier
Abstract: Process for liquefying natural gas in a cryogenic heat exchanger by flowing in indirect contact with refrigerant fluid entering heat exchanger at a first inlet at temperature T0 and pressure P1, and flowing through the exchanger as co-current with the natural gas stream, leaving the heat exchanger in the liquid state, then being expanded at the cold end of the exchanger to return to gaseous state at a pressure P′1 P1 and temperature T1 T0, before leaving the hot end of exchanger by outlet orifice in gaseous state T0. The fluid is then reliquefied to the inlet of the exchanger via compression followed by partial condensation and phase separation, a first liquid phase taken to the first inlet, a first gaseous portion compressed by a second compressor and cooled in desuperheater by contact with portion of the first liquid phase, prior to condensing in a second condenser.
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