基于响应面的天然气三甘醇脱水装置用能优化  

Optimization of energy utilization for natural gas dehydration facilities based on RSM

作　　者：诸林[1] 邓骥[1] 杨洋[1] 李林峰[1] 

机构地区：[1]西南石油大学化学化工学院,四川成都610500

出　　处：《化学工程》2015年第2期40-43,48,共5页Chemical Engineering(China)

摘　　要：运用流程模拟软件HYSYS建立三甘醇(TEG)脱水装置的工艺模型,选择循环量qV、再生温度tr和三甘醇富液进塔温度ti作为主要参数,基于响应面方法(RSM)建立脱水装置能耗的二次显式模型。对响应面模型的显著性和三维图进行分析,结果表明:循环量、再生温度和富液进塔温度对装置能耗影响显著,影响程度为:循环量>富液进塔温度>再生温度;在对能耗的共同影响中,循环量和再生温度、循环量和富液进塔温度交互作用显著而再生温度和富液进塔温度间交互作用可以忽略。以吸收塔出口气体水露点满足GB17820—2012为约束条件,对模型进行最优化求解得到最优操作条件为:循环量400 L/h、再生温度199.8℃、富液进塔温度130℃,在此条件下理论能耗可下降48.3%,具有显著的节能效果。The model of TEG dehydration unit was established by the chemical process simulation software HYSYS.Circulation rate qV,regeneration temperature trand feed temperature of rich solution tiwere chosen as the key parameters. The explicit energy consumption model of the dehydration unit was established using RSM. Through the analysis of energy consumption model,it shows that the circulation rate,regeneration temperature and feed temperature of rich solution all make significant contribution to energy consumption and the influence degree of them is qV 〉ti 〉tr. In addition,the interaction between any two factors is significant while that between regeneration temperature and feed temperature of rich solution is negligible. The regression model was optimized subjecting to the criterion that the dew point of outlet natural gas must conform to GB17820-2012 with Matlab. The optimal conditions were obtained as follows： circulation rate 400 L / h, regeneration temperature 199. 8 ℃ and feed temperature of rich solution 130 ℃. Under those optimal conditions,the theoretical energy consumption can be reduced by 48. 3%,presenting a notable energy conservation effect.

关 键 词：三甘醇脱水 HYSYS RSM 显式模型 交互作用 优化 

分 类 号：TE966[石油与天然气工程—石油机械设备]