制约催化裂化装置长周期运行的问题分析及改造措施
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摘要
格尔木炼油厂催化装置长周期运行的问题一度成为制约全厂生产正常运行、提升经济效益的瓶颈问题。为了解决以上问题,实现装置的长周期运行,格尔木炼油厂根据华东设计院的设计方案,于2012年对催化装置反再和分馏系统进行了消除瓶颈的技术改造。通过改造以后,油浆系统结焦问题得到一定缓解,油气在提升管内的停留时间缩短,本着优化油浆系统运行的目的,摸索出了适合催化裂化装置的减压渣油进料性质。通过一系列的消除瓶颈改造工程、优化操作之后,装置的产品质量及分布得到大幅改善,取得了显著成效。
The problem of long-term operation of the catalytic unit in Golmud refinery once became a bottleneck which restricted the normal operation of the whole plant and improved the economic benefit. In order to solve the above problems and realize the long-term operation of the unit,according to the design scheme of the east China design institute,the technical transformation of the catalytic unit reverse recycle and fractionation system to eliminate the bottleneck was carried out in 2012. After modification,the coking problem of the slurry system is alleviated and the residence time of oil and gas in the riser is shortened. in order to optimize the operation of the slurry system,the feed properties of vacuum residue suitable for catalytic cracking unit are found out. After a series of projects to eliminate bottlenecks and optimize operation,the product quality and distribution of the device have been greatly improved,and remarkable results have been achieved.
The problem of long-term operation of the catalytic unit in Golmud refinery once became a bottleneck which restricted the normal operation of the whole plant and improved the economic benefit. In order to solve the above problems and realize the long-term operation of the unit,according to the design scheme of the east China design institute,the technical transformation of the catalytic unit reverse recycle and fractionation system to eliminate the bottleneck was carried out in 2012. After modification,the coking problem of the slurry system is alleviated and the residence time of oil and gas in the riser is shortened. in order to optimize the operation of the slurry system,the feed properties of vacuum residue suitable for catalytic cracking unit are found out. After a series of projects to eliminate bottlenecks and optimize operation,the product quality and distribution of the device have been greatly improved,and remarkable results have been achieved.
引文