Abstract:

This paper introduces the abnormal operation of pyrolysis gas dryer in the 1000 kt/a ethylene plant at PetroChina Dushanzi Petrochemical Company caused by the decrease in adsorption and dehydration performance after the agent was re-screened and re-filled for the bed leakage in 2016. The reasons for the abnormal operation of pyrolysis gas dryer is analyzed, and some corresponding measures are taken to ensure the stable, safe and long-term operation of the ethylene plant under high load.

Key words: pyrolysis gas dryer, abnormal operation, countermeasure