How to solve the liquid carryover problem in dry gas streams of hydrogenation refining and hydrocracking units
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Causes and solutions to the liquid carryover issue in hydrogenation refining and hydrocracking units – seeking advice from fellow experts!
When dry gas contains liquid, it’s necessary to find the source of the problem; poor operation of the absorption tower can lead to issues； Also, does the dry gas system have a liquid separation tank? It is necessary to improve the liquid removal process in that tank.
The condensate present in the dry gas, along with the compressor lubricating oil, is, due to its low surface tension and the vibrations caused by high-speed airflow, essentially dispersed into tiny droplets within the airflow; therefore, an efficient gas coalescer (filter-type) is required to remove them.
Liquid carryover is inevitable; it depends on the amount, with levels typically around 2000 ppm. Using a dry gas liquid removal coalescer allows for very effective removal of such liquid
The gas velocity is too high. Compare the operating conditions, focusing on the changes in parameters such as flow rate, temperature, and pressure.