单塔塔顶循环丙烷回收工艺特性与能耗评价  

Characteristics and energy consumption evaluation of propane recovery process from single-tower top cycle

作　　者：张伟哲[1] ZHANG Weizhe(No.1 Oil Production Plant of Daqing Oilfield Co.,Ltd.)

机构地区：[1]大庆油田有限责任公司第一采油厂

出　　处：《石油石化节能与计量》2024年第4期46-50,共5页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：为改善现场DHX丙烷回收流程产品收率低、能耗高的缺陷,将原重接触塔和脱乙烷塔合并为单塔,将塔分为吸收段和分馏段,从中引出侧线实现总能耗降低和热集成度的提高,形成SCORE丙烷回收流程。通过单因素模拟实验,分析了脱乙烷塔塔压、侧线抽出液相流量、塔顶回流比、原料气分流比对丙烷收率和总能耗的影响,考察了不同气质组成对工艺的适应性,并对换热网络进行改进。流程改进后,工艺总能耗从28172 kW降至25476 kW,能耗降幅9.56%,节能效果显著。In order to improve the defects of low yield and high energy consumption in DHX propane recovery process,the original heavy contact tower and deethylene tower are combined into a single tower.The tower was divided into absorption section and fractionation section,from which a sideline was drawn to realize a reduction in total energy consumption and increase in heat integration to form the SCORE propane recovery processthermal.Through the single factor simulation experiment,the influences of deethylene tower pressure,the gas phase flow in the side line,the top reflux ratio,raw gas split ratio on the propane yield and the total energy consumption were analyzed.After the process was improved,the total energy consumption of process was reduced from 28172 kW to 25476 kW,and the energy consumption was reduced by 9.56%,which makes energy conservation effect remarkable.

关 键 词：SCORE工艺 单塔流程 丙烷收率 总能耗 

分 类 号：TE64[石油与天然气工程—油气加工工程]