摘要
为了提高凝析油稳定系统能效,基于(火用)分析寻找系统用能缺陷,从有效能的损耗路径出发,采用响应面工艺参数优化来降低有效能的损耗,并采用闪蒸不凝气回收利用工艺将废弃的有效能回收利用,从而达到了节能降耗的目的。研究表明:(火用)损主要来自于凝液换热器、闪蒸分离器和凝析油稳定塔,三者(火用)损之和约占工艺总(火用)损的95%;通过响应面模型对基于(火用)损的敏感性参数进行优化求解,得到最佳闪蒸温度为25℃,闪蒸压力为1.05 MPa,凝析油稳定塔重沸器温度为90℃;增设了闪蒸气回收一体化装置,回收废弃的有效能为28121.89~39537.34 kJ/h。优化后系统整体(火用)损失减少108100.50~113406.29 kJ/h,综合能耗降低4375.67~4437.05 MJ/d,凝析油产品的产量更高、质量更好。
To improve the energy efficiency of condensate stabilization systems, exergy analysis was used to find the energy consumption defects of the system, and response surface process parameter optimization was adopted to reduce the loss of effective energy based on the loss path of effective energy, and flash non-condensable gas recovery and utilization process was adopted to recycle the waste effective energy, so as to achieve the purpose of energy saving and consumption reduction. Studies show that exergy loss mainly comes from condensate heat exchanger, flash separator and condensate stabilization tower, and the sum of exergy loss of the three accounted is for about 95% of the total exergy loss. The response surface optimization model was used to solve the sensitivity parameters of exergy loss, and the optimal flash temperature is 25 ℃, the flash pressure is 1.05 MPa, and the condensate stabilization tower reboiler temperature is 90 ℃. The waste effective energy of 28121.89 kJ/h to 39537.34 kJ/h is recovered by adding flash vapor recovery integrated device. Overall exergy loss decreases by 108100.50 kJ/h to 113406.29 kJ/h, overall energy consumption decreases by 4375.67 MJ/d to 4437.05 MJ/d, condensate product yield is higher and quality is better after optimization.
作者
许艺欣
彭星煜
郭新磊
任彬
卿明祥
李虹
XU Yixin;PENG Xingyu;GUO Xinlei;REN Bin;QIN Mingxiang;LI Hong(College of Petroleum and Natural Gas Engineering,Southwest Petroleum University,Chengdu 610500,Sichuan,China;Engineering Construction Supervision Branch of Qinghai Oilfield Supervision Company,Dunhuang 736202,Gansu,China;Infrastructure Project Center of No.1 Oil Production Plant of Qinghai Oilfield,Mangya 816400,Qinhai,China;Equipment Management Department of No.1 Oil Production Plant of Qinghai Oilfield,Mangya 816400,Qinhai,China;Institute of Safety,Environmental Protection and Technical Supervision,PetroChina Southwest Oil and Gas Field Company,Chengdu 610000,Sichuan,China)
出处
《天然气化工—C1化学与化工》
CAS
北大核心
2022年第3期125-132,共8页
Natural Gas Chemical Industry
关键词
凝析油稳定系统
(火用)分析
敏感性分析
响应面优化
能量回收
condensate stabilization system
exergy analysis
sensitivity analysis
response surface optimization
energy recovery
