两系列单停单开渣油加氢开停工技术的优化  

Optimization of Two Series of Single-shutdown and Single-startup Residual Oil Hydrogenation Startup&Shutdown Technology

作　　者：刘荣[1] Liu Rong(Refining Division,SINOPEC Shanghai Petrochemical Co.,Ltd.,Shanghai 200540)

机构地区：[1]中国石化上海石油化工股份有限公司炼油部,上海200540

出　　处：《石油化工技术与经济》2020年第6期29-34,38,共7页Technology & Economics in Petrochemicals

摘　　要：固定床渣油加氢装置具有运转周期相对较短,开、停工换剂次数多且占用时间长的特点,催化剂更换检修周期一般为1~2年,而炼油装置大检修周期通常为3~4年,因此如何缩短渣油加氢装置开停工时间,减少对其他运行装置的影响成为一项重要课题。两系列单停单开工艺具有装置连续运行周期长、生产灵活性高的特点,目前在渣油加氢装置应用已经比较成熟。以某石化公司3.9 Mt/a两系列单停单开渣油加氢装置为例,总结了装置在多次开停工的优化措施,分析了开停工过程的制约因素,并提出了相关建议。The fixed-bed residue hydrogenation unit has the characteristics of relatively short operating cycle,frequent start-ups and shutdowns,and long occupied time.The catalyst replacement and maintenance cycle is generally 1 to 2 years,while the refining unit overhaul cycle is usually 3 to 4 years,so how to shorten the start-up and shutdown time of the residue hydrogenation unit and reduce the impact on other operating units has become an important issue.The two series of single-shutdown and single-startup processes have the characteristics of long continuous operation cycle and high production flexibility.At present,they have been relatively mature in residual oil hydrogenation equipment.Taking a petrochemical company’s 3.9 Mt/a two-series single-shutdown and single-startup residual oil hydrogenation unit as an example,the optimization measures of the device during multiple start-ups and shutdowns are summarized,the constraints of the start-up and shutdown process are analyzed,and relevant suggestions are put forward.

关 键 词：渣油加氢 开停工技术 全蜡油硫化 停工退油 优化 

分 类 号：TE624[石油与天然气工程—油气加工工程]