广东大鹏LNG接收站实施轻烃分离的可行性

Feasibility of Lighter Hydrocarbon Extraction Applied in Guangdong Dapeng LNG Terminal

介绍了国际上LNG冷能的利用现状,阐述了广东大鹏LNG接收站基于LNG化学组成和LNG冷能利用增设轻烃分离装置的必要性,指出了实现轻烃分离需要解决的技术问题:同时保证天然气管道在比较稳定的高压力下运行和轻烃分离装置稳定的进料量,确定了增设轻烃分离装置的原则。通过开展联合工艺研究和轻烃分离装置模拟计算,使轻烃分离装置和接收站都处于优化运行状态,不但解决了接收站气化外输量的波动对轻烃分离装置的影响问题,而且确保了广东大鹏LNG公司连续安全地向用户供应天然气。

Situation of LNG cold energy utilization is presented internationally and necessity for providing Guangdong Dapeng LNG Receiving Station with lighter hydrocarbon separation apparatus based on LNG’s chemical components and cold energy utilization is expounded and techniques required to be solved for realizing lighter hydrocarbon separation are pointed out,meanwhile,keep the gas pipeline operating stably under high pressure and provide the lighter hydrocarbon separation apparatus with stable feeding volume and fix on the principle of providing lighter hydrocarbon separation apparatus.Through combined process study and simulating calculation,make both apparatus and receiving station operate under optimized status,which not only solves the issue of influencing on the lighter hydrocarbon separation apparatus caused by fluctuation of gasified volume transferred from the receiving station,but also ensures gas supply to users from Guangdong Dapeng LNG Company continuously and safely.