天津石化1.3 Mt/a蜡油加氢装置熄灭反应炉实践

Practice of extinguishing the reaction furnace in Tianjin Petrochemical’s 1.3 MM TPY wax oil hydrogenation unit

中石化(天津)石油化工有限公司1.3 Mt/a蜡油加氢装置于2007年开工建设,2009年12月开车成功,2016年分馏塔停运,熄灭分馏炉。熄灭反应炉是加氢装置高效运行的标志,不仅是节能的体现,也是技术的进步。2024年初计划熄灭反应炉,熄灭反应炉后,由于自产的1.0 MPa蒸汽达不到过热状态,不能直接并入1.0 MPa蒸汽管网,且硫化氢汽提塔所用汽提蒸汽为过热蒸汽,需要将自产的1.0 MPa蒸汽送至0.45 MPa蒸汽管网,所以新增了自产的1.0 MPa蒸汽至0.45 MPa蒸汽管网工艺流程。该1.3 Mt/a蜡油加氢装置熄灭反应炉后能够减少400 m 3/h的燃料气消耗,实现年增效1100万元。熄灭反应炉前需要进行原料分析及热量核算,熄灭反应炉后注意维护,以实现高质量熄灭反应炉。

Tianjin Petrochemical’s 1.3 MM TPY wax oil hydrogenation started construction in 2007 and was successfully started in December 2009.In 2016,the fractionation tower was shut down and the fractionation furnace was extinguished.Extinguishing the reaction furnace is a symbol of efficient operation of hydrogenation equipment.Extinguishing the reaction furnace is not only a reflection of energy consumption,but also a technological innovation.At the beginning of 2024,it was planned to shut down the reaction furnace.After the reaction furnace was shut down,due to the fact that the self-produced 1.0 MPa steam was not overheated,it could not be integrated into the 1.0 MPa steam pipeline network directly,and the hydrogen sulfide stripping tower used superheated steam,it was necessary to send the self-produced 1.0 MPa steam to the 0.45 MPa steam pipeline network.Therefore,a new process flow of self-produced 1.0 MPa steam to the 0.45 MPa steam pipeline network was added.The 1.3 MM TPY wax oil hydrogenation unit can reduce fuel gas consumption by 400 m 3/h after extinguishing the reaction furnace,achieving an annual efficiency increase of 11 million yuan.Before extinguishing the reaction furnace,it is necessary to conduct feedstock analysis and heat calculation.After extinguishing the reaction furnace,attention should be paid to maintenance to achieve high-quality extinguishing of the reaction furnace.