曙五联原油脱水工艺研究

发布时间：2018-06-12 05:10

本文选题：原油脱水 + 化学沉降　；参考：《东北石油大学》2017年硕士论文

【摘要】：曙五联始建于1988年,建站时的设计规模为150×10~4t/a(纯油),掺稀油规模为100×10~4 t/a(稀油比为1:0.7(重量比)),综合含水40%,最大处理液量420×10~4t/a(11500t/d),污水处理能力5000m3/d。此后随着进站液量的增加和超稠油所占比例的上升,曙五联脱水工艺陆续进行改扩建。2007年该站扩建2座10000m3二段沉降罐,设计处理液量为770×10~4t/a(20300m3/d),综合含水76.9%,设计处理后含水指标为1.5%。站内污水经除油罐除油后外输华油污水处理厂和曙一区污水深度处理站,目前污水处理量为17800m3/d。曙五联主要接收三区、五区和七区来液,采用二段热化学沉降脱水工艺,一段脱水各区分别进行,计量后汇在一起进行二段脱水,目前处理后原油含水1.5~2.5%,长期处于超标状态。若能有效解决上述问题,则对提高辽河油田整体经济效益及保障下游炼厂安全生产具有重要意义。本次设计主要内容包括:来液进站预脱,优化加热炉配置,降低能耗;通过室内脱水试验,进行药剂筛选,确定配方及剂量;增建导热油维温系统;提出合理工艺改造方案,充分利用已建设施,增加原油静沉时间。
[Abstract]:The design scale of Shuwu United was 150 脳 10 ~ (4) t / a (pure oil, 100 脳 10 ~ (10) ~ 4 t / a) (the ratio of thin oil to oil) was 1: 0.7 (W / V), 40% water cut, 420 脳 10 ~ (4) t / a 11500 t / d ~ (-1 / d), and 5 000 m ~ (3 / d) of sewage treatment capacity. Since then, with the increase of liquid volume and the proportion of super heavy oil, Shu-five dehydration process has been reformed and expanded one after another. In 2007, two 10000m3 two-stage sedimentation tanks were expanded, the designed treatment liquid volume was 770 脳 10 ~ (4) t / a ~ (20) 300 m ~ (3) / d ~ (-1), the comprehensive water cut was 76.9m ~ (-3), and the designed water cut index was 1.5 ~ (th). The sewage in the station is transported to China Oil pollution Water treatment Plant after removing oil from the oil tank and the advanced sewage treatment station in Shu 1 area. The current sewage treatment capacity is 17800 m3 / d. Shu-Wucombination mainly receives liquid from three areas, five zones and seven zones, and adopts the two-stage thermochemical sedimentation dehydration process. The dewatering zones of the first stage are carried out separately, and then they are collected together for the second stage dehydration. At present, the treated crude oil has a water cut of 1.5% and 2.5%, which has been in a state of exceeding the standard for a long time. If the above problems can be solved effectively, it is of great significance to improve the overall economic benefit of Liaohe Oilfield and ensure the safety of downstream refineries. The main contents of this design include: pre-stripping, optimizing heating furnace configuration and reducing energy consumption; through indoor dehydration test, chemical selection to determine formula and dosage; building heat conduction oil temperature system; putting forward a reasonable technological transformation scheme, Make full use of established facilities to increase the settling time of crude oil.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE868

【参考文献】