本文選題：海上氣田 + FLNG��； 參考：《油氣儲運》2017年01期

【摘要】：為了明確FLNG(Floating Liquefi ed Natural Gas)開發(fā)模式在我國海上氣田應用的可行性,對海上氣田雙氮膨脹天然氣液化工藝過程及主要參數(shù)進行了模擬分析。以目標氣田氣體組分和溫壓數(shù)據(jù)為基礎,在保持氣體組分、流量、進入液化段的溫度及其壓力不變的情況下,利用HYSYS軟件分析了預冷、液化及過冷3個階段的出口溫度、液化段與過冷段的制冷劑循環(huán)壓力對液化工藝流程的壓縮功率、換熱器功率、制冷劑流量、比功率以及冷箱負荷等的影響。結果表明:當液化段中氣體的出口溫度設定為-75℃,液化段和過冷段制冷劑的循環(huán)入口壓力分別為3 450 k Pa和1 710 k Pa時,循環(huán)系統(tǒng)壓縮機組的壓縮功率和比功率達到最小值;預冷段的溫度設定對制冷劑總壓縮功率沒有影響,但能夠調整預冷段和液化段之間的換熱負荷分配。該研究可以為FLNG開發(fā)方案的設備選型、技術和經(jīng)濟評估提供參考。
[Abstract]:In order to clarify the feasibility of the application of FLNGLNGLING liquid natural gas development model in offshore gas fields in China, the process and main parameters of the liquefaction process of natural gas with diazo expansion in offshore gas fields are simulated and analyzed. Based on the gas components and pressure data of the target gas field, the exit temperatures of the three stages of precooling, liquefaction and undercooling are analyzed by using the HYSYS software under the condition of keeping the gas components, the flow rate, the temperature and the pressure entering the liquefaction section unchanged. The effect of refrigerant circulation pressure on the compression power, heat exchanger power, refrigerant flow rate, specific power and cooling box load of liquefaction process. The results show that when the outlet temperature of the gas is -75 鈩，

本文編號：2005115