
第43卷第3期
石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
宜宾大塔轻烃回收项目工艺设计及参数优化
朱琳
(天津市振津工程设计咨询有限公司)
摘要宜宾大塔轻烃回收项目是对宜宾大塔浅层油气田气进行处理以回收天然气中的轻烃并联产液化天然气(LNG)的项目。根据油气田天然气组分和项目的特点,轻烃回收工艺采用
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DHX工艺,天然气液化采用单循环双节流混合冷剂制冷工艺。由于宜宾地区的外输气管网压力已定,需要对典型的DHX工艺进行调整优化。采用HYSYS模拟软件对轻烃回收及天然气液化过程进行模拟、计算和优化,对比不同操作温度下工艺装置运行结果,并从能耗、回收率、经济效益等方面进行比较以确定最优的工艺操作参数。
关键词轻烃回收DHX回收率能耗宜宾大塔
中图分类号:TE868
文献标志码:ADOI:10.3969/j.issn.1007-3426.2014.03.011
ProcessdesignandparameteroptimizationofYibinData
lighthydrocarbonsrecycleproject
Zhu Lin
(Tianjin Zhenjin Engineering Design Consulting Co.,Ltd,Tianjin 300384,China)
Abstract: Yibin Data light hydrocarbons recycle project deals with gas from shallow oil and gas field to recycle light hydrocarbons , liquefied petroleum gas (LPG) and produce liquefied nat-ural gas (LNG) in Data, Yibin . According to the gas components of oil and gas field and charac. teristics of the project , the direct heat exchange (DHX) technology is adopted to recycle light hy -drocarbons and single cycle compound throttling mixed refrigerant -cycle refrigeration (SMCR) is used for natural gas liquefaction . The output pressure of natural gas pipeline network had been set , so the operating parameters of the process need to be optimized . HYSYS was applied to sim ulate, optimize and calculate the recovery of light hydrocarbons and process of LNG liquefaction This article analyzed DHX process under different temperatures to optimize operating parameters on the basis of energy consumption , recovery rate and economic benefits .
Key words : light hydrocarbons recycle , direct heat exchange (DHX), recovery rate , energy consumption,YibinData
宜宾大塔轻烃回收项目建设地址位于四川省宜宾市,原料天然气为宜宾大塔浅层油气田气。因原料气中富含轻烃组分,对天然气进行综合处理回收重组分可提高企业经济效益。另外,由于下游市场
的需要,处理后的部分天然气制成LNG产品销售,因此,项目拟建设一座30X10*m"/d的天然气综合处理装置,并联产10X10°m"/d的液化天然气。
DHX工艺又称为直接换热工艺,由加拿大埃索
作者简介:朱琳(1979一),女,河南郑州人,2006年3月毕业于天津大学化学工程专业,硕士,工程师,现任天津市振津工号鑫茂天财酒店A区507单元。电话:022-23080300。E-mailjulie924119@126.com