天然气与石油2024，Vol.42Issue(4)：101-109,9.DOI:10.3969/j.issn.1006-5539.2024.04.013
正交试验及响应面优化在乙烷回收中的对比
Comparison between orthogonal test and response surface optimization in ethane recovery
摘要
Abstract
To address the issue of high energy consumption in the ethane recovery from rich gas using the Recycle Split Vapor(RSV)ethane process,four key process parameters affecting the recovery rate and the total compression power consumption are identified and their optimal value ranges are selected through single-factor and sensitivity analysis.Subsequently,parameter optimization was conducted using orthogonal test method and response surface methodology.The response surface methodology,through variance analysis,Pareto diagram analysis,and optimization,yielded the following optimal process parameters:demethanizer column pressure at 2 800 kPa,cryogenic separator temperature at-47.54℃,dry gas reflux ratio at 14.8%,and cryogenic separator gas-phase split ratio at 14.02%.The ethane recovery rate and total compression power consumption achieved were 93.43%and 7 694.05 kW respectively,outperforming the previous values of 92.87%and 7 784.05 kW.When dealing with fewer parameters,the orthogonal test method is recommended to reduce the test workload.However,the quadratic regression optimization model established by the response surface methodology not only optimizes the process parameters,but also quantifies the interaction effects of parameters on the ethane recovery rate and the total compression power consumption,providing a theoretical basis for the process parameters adjustment on site.关键词
富气/乙烷回收/正交试验/响应面优化/交互作用Key words
Rich gas/Ethane recovery/Orthogonal experiment/Response surface optimization/Interaction引用本文复制引用
李斐,杨冬磊..正交试验及响应面优化在乙烷回收中的对比[J].天然气与石油,2024,42(4):101-109,9.基金项目
陕西国防工业职业技术学院2023年度科研项目"中高压富气乙烷回收应用工艺技术研究"(Gfy23-38) （Gfy23-38）
