摘要
设计了将脉管制冷机与自复叠制冷循环相结合的新型天然气液化流程,运用HYSYS软件对该流程进行模拟计算。模拟结果表明,该新型天然气液化流程的比耗功为29222 k J/kmol,液化率为85.5%。当天然气入口压力从6.0 MPa降低到4.8 MPa时,液化系统的比耗功增加了13%。当脉管制冷机入口温度为-140℃时,液化流程的比耗功最小,为24640 k J/kmol。
A new natural gas liquefaction process was put forward based on the combination of Pulse Tube Cooler and auto-cascade refrigeration cycle. Using HYSYS software,the simulation of the new natural gas liquefaction process was completed. Calculation results showed that the power of the new type of natural gas liquefaction process was 29222 k J /kmol,and the liquefaction was 85. 5%. With naturalgas inlet pressure form 6. 0MPa to 4. 8 MPa,the power of the liquefaction system increased by 13%. When the pulse tube refrigerator inlet temperature was- 140 ℃,power consumption of the liquefaction process was the minimum power consumption of 24640 k J / kmol.
出处
《能源工程》
2015年第5期63-67,53,共6页
Energy Engineering
基金
上海市大学生创新创业训练计划(201510252014)
关键词
天然气
脉管制冷机
自复叠制冷循环
液化流程
natural gas
pulse tube cooler
auto-cascade refrigeration cycle
liquefaction process
