Patent ID: 11874055
Assignee: CONOCOPHILLIPS COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC F | IPC F

Claim 0:
1. A method for supplying refrigerants to a floating liquefied natural gas (LNG) facility, the method comprising:
advancing a first refrigerant from a first storage device to a heat exchanger, the first refrigerant having a first temperature;
advancing a second refrigerant from a second storage device to the heat exchanger, the second refrigerant having a second temperature different than the first temperature;
adjusting the second temperature based on at least a transfer of heat between the first refrigerant and the second refrigerant in the heat exchanger;
advancing the first refrigerant from the heat exchanger to a temperature control system to apply heat to the first refrigerant;
advancing the second refrigerant from the heat exchanger to an expansion valve to reduce pressure of the second refrigerant; and
transferring the first refrigerant from the temperature control system and the second refrigerant from the expansion valve to cooling cycles in the floating LNG facility,
wherein,
the second refrigerant is introduced to the floating LNG facility, during a first-fill procedure at a different pressure than subsequent introductions of the second refrigerant to the floating LNG facility,
the first-fill procedure of the second refrigerant is performed prior to operation of the floating LNG facility, and
the subsequent introductions of the second refrigerant occur during the operation of the floating LNG facility.