天津石化10 Mt/a常减压装置减压深拔工艺技术优化

Optimization of Decompression Deep Drawing Technology for 10 Mt/a Atmospheric and Vacuum Unit in Tianjin Petrochemical Company

为了保证装置安全平稳运行,更是为了提高装置的经济效益,利用petro-sim模拟软件做指导,对天津分公司10 Mt/a常减压装置减压深拔技术在应用过程中进行了工艺优化操作,包括常压塔的优化操作,如提高炉出口温度和柴油在常压塔拔净等;减压塔的优化操作,如在保证安全的前提下提高减压炉出口温度、降低塔顶真空度及优化减底吹汽等。通过一系列的优化操作,提高了减压塔的拔出率,增加了经济效益,减压深拔优化后比装置未深拔每年约提高经济效益9000余万元。

In order to ensure the safety of the equipment running smoothly,but also in order to improve the economic benefit of unit,using petro-sim simulation software for guidance,to Tianjin branch 10 Mt/a pressure-relief devices often reduced pressure in the process of deep drawing technology in application to optimize the process operation,including the optimization of atmospheric column operation,such as increasing the furnace outlet temperature and diesel in the atmospheric column net pull,etc.;Optimized operation of the vacuum tower,such as raising the outlet temperature of the vacuum furnace,reducing the vacuum degree at the top of the tower and optimizing the bottom reduction steam blowing on the premise of ensuring safety.Through a series of optimized operations,the pull-out rate of the decompression tower has been improved, and the economic benefits have been increased by more than 90 million yuan per yearafter the optimized decompression deep drawing compared with the undeep drawing of the unit.