中东某油田伴生气脱水系统模拟优化
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摘要
油田伴生气在含酸气、液态水的环境下易形成酸液进而腐蚀管道、设备,影响生产,脱水是天然气处理中必不可少的一个环节。针对某油田伴生气的产出状况,优选三甘醇脱水工艺,应用ASPEN HYSYS软件建立三甘醇脱水模型,分析吸收塔塔温、塔压、塔板数、贫甘醇浓度及循环量等对脱水效果的影响,随后对整个系统进行能耗分析、节能改造,优化脱水效果,减少废水、废气的排放。模拟结果显示,经过流程优化,原料气能够满足脱水深度的要求且整个系统的能耗最低。
The associated gas with sour gas and liquid water is easy to form acid solution,which corrodes pipelines and equipment,affects production.Dehydration is an indispensable part of natural gas processing.Based on the output of associated gas in an oil ?eld,this paper selected triethylene glycol as the dehydration process.The ASPEN HYSYS software was used to establish a triethylene glycol dehydration model and analyze the effects of absorption tower temperature,tower pressure,number of trays,concentration and circulation amount of alcohol on the dehydration effect.Then the energy consumption analysis and energy-saving renovation of the whole system were carried out to optimize the dehydration effect and reduce the discharge of waste water and waste gas.The simulation results show that after the process optimization,the raw gas can meet the requirements of dehydration depth and the energy consumption of the whole system is the lowest.
The associated gas with sour gas and liquid water is easy to form acid solution,which corrodes pipelines and equipment,affects production.Dehydration is an indispensable part of natural gas processing.Based on the output of associated gas in an oil ?eld,this paper selected triethylene glycol as the dehydration process.The ASPEN HYSYS software was used to establish a triethylene glycol dehydration model and analyze the effects of absorption tower temperature,tower pressure,number of trays,concentration and circulation amount of alcohol on the dehydration effect.Then the energy consumption analysis and energy-saving renovation of the whole system were carried out to optimize the dehydration effect and reduce the discharge of waste water and waste gas.The simulation results show that after the process optimization,the raw gas can meet the requirements of dehydration depth and the energy consumption of the whole system is the lowest.
引文
[1]Mohammad M.Ghiasi,AlirezaBahadori,SohrabZendehboudi.Estimation of Triethylene Glycol(TEG)Purity in Natural Gas Dehydration Units Using Fuzzy Neural Network[J].Journal of Natural Gas Science and Engineering,2014,17:26-32.
[2]甘醇型脱水设计规范:SY/T 0602-2005[S].北京:国家发展和改革委员会,2005.
[3]张思勤.天然气水合物的危害及预防[J].企业导报,2014(14):177.
[4]刘松岭,侯新文.天然气脱水技术进展.广州化工,2013,41(19):34-35.
[5]黄安源.油气运输过程中水合物的抑制:(硕士学位论文).东营:中国石油大学,2011.
[6]Nagu Daraboina,Stylianos Pachitsas,Nicolas von Solms.Natural Gas HydrateFormation and Inhibition in Gas/Crude Oil/Aqueous Systems.Fuel,2015,(148):186-190.
[7]王遇冬.天然气处理原理与工艺[M].北京:中国石化出版社,2007.
[8]李玉星,邹德永,冯叔初.高压下预测天然气水合物形成方法研究[J].天然气工业,2002,22(2):91-94.
[9]Robert A.Hubbard,John M.Campbell.An Appraisal of Gas Dehydration Processes[M].Hydrocarbon Engineering,2000:71-77.
[10]Muhammad Aimen Isa,UsamaEldemerdash,KhashayarNasrifar.Evaluation of Potassium Formate As A Potential Modifier of TEGfor High Performance Natural Gas Dehydration Process[J].Chemical Engineering Research and Design,2013,91:1731-1738.
[2]甘醇型脱水设计规范:SY/T 0602-2005[S].北京:国家发展和改革委员会,2005.
[3]张思勤.天然气水合物的危害及预防[J].企业导报,2014(14):177.
[4]刘松岭,侯新文.天然气脱水技术进展.广州化工,2013,41(19):34-35.
[5]黄安源.油气运输过程中水合物的抑制:(硕士学位论文).东营:中国石油大学,2011.
[6]Nagu Daraboina,Stylianos Pachitsas,Nicolas von Solms.Natural Gas HydrateFormation and Inhibition in Gas/Crude Oil/Aqueous Systems.Fuel,2015,(148):186-190.
[7]王遇冬.天然气处理原理与工艺[M].北京:中国石化出版社,2007.
[8]李玉星,邹德永,冯叔初.高压下预测天然气水合物形成方法研究[J].天然气工业,2002,22(2):91-94.
[9]Robert A.Hubbard,John M.Campbell.An Appraisal of Gas Dehydration Processes[M].Hydrocarbon Engineering,2000:71-77.
[10]Muhammad Aimen Isa,UsamaEldemerdash,KhashayarNasrifar.Evaluation of Potassium Formate As A Potential Modifier of TEGfor High Performance Natural Gas Dehydration Process[J].Chemical Engineering Research and Design,2013,91:1731-1738.