Optimization of refrigerant ratio in LNG liquefaction cryogenic tank
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How much can the load be increased by optimizing the refrigerant ratio in LNG liquefaction cryogenic tanks? Reduce energy consumption of mixed refrigerant compressors
Optimizing the refrigerant ratio in the LNG liquefaction cryogenic tank can improve system efficiency; the extent to which the load can be increased and how much energy can be saved depends on the condition of the existing system and the specifics of the optimization. Generally, proper ratio optimization can reduce the energy consumption of mixed-refrigerant compressors, increase production capacity, and lower operating costs. .
The optimization data used during design may sometimes differ from the actual composition of natural gas; therefore, after production, it is advisable to adjust the refrigerant ratio based on the actual operating conditions, as this can significantly help reduce operational energy consumption
Control the temperature of the refrigerant entering the cold box. If the temperature of the refrigerant entering the cold box is too high, then the temperature of the refrigerant after throttling will also increase accordingly, which will affect the normal state of the mixed refrigerant components. To address this issue, air coolers and water coolers can be used to lower the temperature of the high-pressure refrigerant, thereby ensuring that the refrigerant components remain within normal ranges and allowing more cooling capacity to be obtained after throttling.