Extended nitrogen purging to remove LEL after a hydroprocessing unit cools down is a costly and time consuming method. The process involves purging the high pressure side of the unit with nitrogen to remove LEL from reactors so catalyst handling activity can begin. Nitrogen purging can take days and consume several tanker trucks of nitrogen, costing the refinery millions of dollars by delaying turnaround activities.
Although nitrogen purging is marginally effective at removing non-condensables and other light-end materials from hydroprocessing units, it is ineffective at removing heavier hydrocarbons that cause residual LEL problems in catalyst beds. Additionally, Refined Technologies has learned from several commercial applications and best practices that it is far more efficient to cool reactors all the way down with hydrogen, instead of trying to cool down with nitrogen purging.
QuikTurnRX is injected into hydroprocessing units during unit cooldowns and will remove all hydrocarbons from the high pressure loop by introducing a solvency mechanism into the hydrogen sweep gas. The process is fast, effective, and only requires you to pressure and dump the high pressure side with nitrogen after cooling to displace hydrogen out of the system. Only 2 – 3 pressure and dumps are required to displace hydrogen from the system so catalyst handling activity can begin.
The QuikTurnRX process is helping refiners significantly shorten shutdown timelines on hydroprocessing units by eliminating hot hydrogen stripping and extended nitrogen purging. Contact Refined Technologies to learn more about this revolutionary process.