轻汽油醚化装置工艺流程模拟  

PROCESS SIMULATION OF LIGHT GASOLINE ETHERIFICATION UNIT

作　　者：党建军 Dang Jianjun(CNOOC Huizhou Petrochemical Co.,Ltd.,Huizhou,Guangdong 516086)

机构地区：[1]中海油惠州石化有限公司,广东惠州516086

出　　处：《石油炼制与化工》2024年第7期144-151,共8页Petroleum Processing and Petrochemicals

摘　　要：利用稳态流程模拟软件PRO/Ⅱ,对0.4 Mt/a轻汽油醚化装置主要工艺流程进行了系统的模拟计算,介绍了软件建模的热力学方法选择、重要设备的模块选择、工艺建模过程及其主要设置。模型验证结果表明,所建模型具有较高的准确性和适用性。为实现活性烯烃最大转化率,保证碳五组分质量,利用所建模型对醚化分馏塔甲醇加注量和回流比,甲醇回收单元萃取水量、循环甲醇中水含量及萃取水中甲醇含量等参数进行了优化。结果表明,醚化分馏塔甲醇加注量控制在进料甲醇量的8.8%,醚化分馏塔回流比控制在2.0,萃取水量控制在10~11t/h,萃取水中甲醇质量分数控制在0.04%,循环甲醇中水质量分数控制在0.016%为宜。The main process flow of 0.4Mt/alight gasoline etherificationunitwas systematically simulated and calculated by usingsteady-state process simulationsoftware PRO/II,andthe thermodynamic method selection of software modeling,the module selection of important equipment,the process modeling process and its main settings were introduced.The resultsof model validationindicatedthat the constructed model had high accuracy and applicability.In order to achieve the maximum conversion rate of active olefins andensure the quality of C5 components,the methanol injection amountand reflux ratio in the etherification fractionation column were determined by the established model,and the parameters ofextractionwater,water content in the circulating methanol and the methanol contentin the extraction waterof methanol recovery unit were optimized.The methanol injection amount of the etherification fractionation column was controlled at 8.8%of the feed methanol amount,the reflux ratio of the etherification fractionation columnshouldbe controlled at 2.0,the extraction water amountwas controlled at 10-11t/h,and the mass fraction of methanolin the extraction water andwater in the circulating methanol was controlled 0.04%and 0.016%,respectively.

关 键 词：轻汽油醚化 流程模拟 醚化分馏塔 甲醇回收 

分 类 号：TE624[石油与天然气工程—油气加工工程]