
第45卷第4期
石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
基于HYSYS的轻烃回收工艺方案优化
周刚郭林林李哲刘凤荣单莉娜
东北石油大学提高采收率教育部重点实验室
摘要凝析气田天然气中含有丰富的轻组分。根据原料气独有的特点对不同的制冷工艺进行比选,在对现有回收工艺进行定性对比的基础上,运用HYSYS软件对所选工艺进行模拟,对工艺进行定量比选。并对所选直接换热(DHX)轻烃回收工艺分别进行流程及参数优化。结果表明,优化后的工艺方案流程更加简单,当膨胀比为1.79时,净收益最高。
关键词凝析气田轻烃回收制冷工艺HYSYS
DHX工艺
中图分类号:TE868
文献标志码:A
D0I:10.3969/i.issn.1007-3426.2016.04.002
Process optimizationof light hydrocarbon recoverybased onHYSYS
ZhouGang,GuoLinlin,LiZhe,LiuFengrong,Shan Lina
(Key Lab of Ministry of Education for Enhancing the Oil and Gas Recouery Ratio,
Northeast Petroleum University , Daqing 163318, China
Abstract : Natural gas of condensate field is rich in light hydrocarbons composition . In this paper , according to the unique characteristics of the feed gas , different refrigeration technologies were compared and selected. Quantitative comparison was carried out on the process using HYSYS software to carry on the simulation of the selected technology on the basis of qualitative comparison of the existing recycling process . The process and parameters are optimized respectively , according to the selected direct heat exchanger (DHX ) light hydrocarbon recovery process . The results showed that the optimized process plan flow was more simple , and when the expansion ratio was 1.79, the highest net income was realized.
Key words : condensate field, light hydrocarbon recovery , refrigeration technology , HYSYS, DHX process
目前,国内部分凝析气田天然气处理厂的脱烃装置回收深度仅为满足外输气烃露点要求,轻烃回收率低,还有大量轻烃资源未回收利用,而这些轻烃资源具有较高的附加值。为了提高经济效益,满足市场需求,有必要对部分较富天然气中的烃类组分进行回收1-3],建设大型天然气轻烃回收工厂,生产液化石油气(LPG)以及稳定轻烃产品。因此,工艺方案的选择及
5
改进以回收C:及C组分为目标,其主要产品为液化石油气和稳定轻烃产品。
轻烃回收工艺对比 1
1.1基础数据
对比以塔里木油田某凝析气田天然气处理广为对
象,其基础数据如下:
基金项目:国家科技支撑计划资助项目"老工业基地产业升级科技服务平台研发与应用”(2012BAH28F00);中国石油科技创新基金研究项目"严寒地区高含蜡原油储存工艺方案优化技术研究"(2014D-5006-0607)。
作者简介,周刚(1988一),男,山东潍坊人,在读研究生,主要从事油气处理工艺及储运系统节能降耗研究工作。E-mail: zhougang2017@ 163 .com