不同工艺的催化裂化汽油加氢装置比较  

Comparison of FCC gasoline hydrotreating units of different processes

作　　者：扈文锋[1] 马书涛[1] 

机构地区：[1]中国石化集团洛阳石油化工工程公司,河南省洛阳市471003

出　　处：《炼油技术与工程》2011年第8期26-30,共5页Petroleum Refinery Engineering

摘　　要：对比介绍了A公司300 kt/a催化裂化汽油加氢、B公司300 kt/a催化裂化汽油加氢及C公司1 M t/a催化裂化汽油加氢3套不同工艺的加氢装置,并对3套装置预分馏、反应及汽提部分的工艺流程进行比较探讨,同时对装置的工艺条件、产品质量、能耗和投资等方面进行了分析比较。结果表明:从工艺流程上看,A公司工艺流程最简洁,B公司工艺流程次之,C公司工艺流程由于采用预处理及两段脱硫的方式,流程最复杂;A公司的反应进料加热炉炉管内及加氢脱硫催化剂床层上存在结焦的风险,另外两套相对较好;C公司多处采用中压蒸汽作为热源,总体热量利用率相对较低,能耗最高,B公司由于不用中压蒸汽作为热源,能耗相对较低;A公司由于流程简单,投资最小,C公司由于流程复杂且有三个反应器,投资最大。Three FCC gasoline hydrogenating units of different processes are introduced,which are Company A＇s 300,000 TPY FCC gasoline hydrotreating unit,Company B＇s 300,000 TPY FCC gasoline hydrotreating unit and Company C＇s 1.0 MM TPY FCC gasoline hydrotreating unit.The process flows of prefractionation,reaction and stripping sections are also analyzed and discussed,and process conditions,product quality,energy consumption and investment were studied and compared.The results show that Company A＇s process is simplest followed by Company＇s B＇s process.As pre-hydrotreatment and two-stage hydrodesulfurization are adopted in the process,Company C＇s hydrotreating process is the most complicated among the 3 units.The reactor feed heater tubes and catalyst bed of hydodesulfurization reactor are subject to coking in Company A＇s unit,while the other two units are less troubled by coking.Since medium-pressure steam is used as heating media for most users in Company C＇s unit,the total heat utilization rate is relatively low and energy consumption is high.The energy consumption of Company B＇s unit is lower because it does not use medium-pressure steam as heat source.Company A＇s unit is simple in process flow and lowest in capital investment.Company C＇s unit is highest in investment because it has 3 three reactors in complicated process.

关 键 词：催化裂化汽油 加氢 工艺 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]