天然气与石油2026，Vol.44Issue(4)：1-9,9.DOI:10.3969/j.issn.1006-5539.2026.04.001
上海洋山LNG接收站冷能发电工艺操作优化
Optimization of operating parameters for cold energy power generation process at Shanghai Yangshan LNG receiving terminal
摘要
Abstract
Cold energy power generation is an efficient and feasible method for utilizing the cold energy of liquefied natural gas(LNG)at receiving terminals.Shanghai Yangshan LNG terminal has commissioned China's first and the world's largest LNG cold energy power generation facility.To address the issue of unstable power output caused by variations in environmental conditions,feedstock parameters,and gas consumption demand,an optimization study was conducted on the cold energy power generation system at the terminal.Based on field operational data and experience,a process model of LNG cold energy power generation was established and validated.Sensitivity analyses of process parameters were conducted,and optimal parameters under different operating conditions were determined to maximize the net power output.Results indicate that,under identical conditions,the net power output per unit mass of LNG in summer is 43.1%higher than that in winter;however,due to summer gas demand being 30%～50%lower than peak winter demand,the total net power output in winter is approximately equal to that in summer.Additionally,net power output during high tide is 7.1%higher than that during low tide.Under specified operating conditions where only the LNG composition is varied,the net power output using lean LNG is 17.2%higher than that using rich LNG.By adjusting seawater flow rate,propane flow rate,propane high and low pressures,the system was optimized for four operating conditions—summer lean LNG,summer rich LNG,winter lean LNG,and winter rich LNG.Compared with design parameters,the optimized process increased average net power output by 13.94%,providing practical reference for process operation optimization of similar applications.关键词
LNG冷能发电/工艺模拟/敏感性分析/操作优化/遗传算法Key words
LNG cold energy power generation/Process simulation/Sensitivity analysis/Operation optimization/Genetic algorithm引用本文复制引用
袁杨,阳智钢,易宜阳,朱建鲁,徐常安..上海洋山LNG接收站冷能发电工艺操作优化[J].天然气与石油,2026,44(4):1-9,9.基金项目
国家自然基金联合重点项目"新型FLNG装置天然气带压液化复杂流动与换热的基础问题"(U21B2085) （U21B2085）
