Analysis of the Causes of Damage to the Interior Components of Liquid Phase Diesel Hydrogenation Reactor and Research on Countermeasures
The SLHT liquid phase diesel hydrogenation unit eliminates the complex high-pressure hydrogen circulation system and replaces it with a simple oil circulation system.It adopts an upflow reactor,operates entirely in liquid phase,and is not constrained by the aspect ratio and bed height of the reactor,resulting in fewer internal components and significantly reduced energy consumption,over 40%lower than traditional trickle bed technology.Unlike traditional trickle bed hydrogenation reactors,the upflow reactor cannot perform catalyst rejuvenation after an increase in pressure drop,making pressure drop the primary bottleneck for the safe and stable long-term operation of the unit.This paper analyzes and summarizes the causes of internal component damage due to high reactor pressure drop and proposes measures such as improving the installation method of plate layers,optimizing operating conditions,reducing the reaction recycle ratio,and optimizing catalyst loading schemes.Significant results have been achieved,providing valuable reference and applicability to similar liquid phase diesel hydrogenation units.
liquid phase diesel hydrogenationupflow reactorpressure drop increaseinternal component damagecountermeasure research
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