Identify the deposit before cleaning ceramic packing. Select chemistry that is compatible with both the foulant and the ceramic, control temperature and mechanical impact, rinse thoroughly and inspect for damage before restart.

Used ceramic packing can sometimes be reused after shutdown if it remains chemically sound, mechanically intact, dimensionally acceptable and cleanable. Inspect multiple bed locations and investigate the reason for shutdown before deciding.

Distinguish chemical attack, thermal shock and mechanical breakage by combining fracture appearance, bed location, process history, pressure-drop trends and comparison with unused samples. Replacement without root-cause analysis risks repeating the failure.

Conventional ceramic packing is suitable for many chemical towers, but high-purity applications may require limits on iron, alkali oxides or other trace constituents. Acid resistance and chemical purity should be specified separately.

Mixed-chemical service should be evaluated from the complete process composition, including impurities, reaction products, cleaning chemicals and upset conditions. Do not select ceramic packing using only the dominant chemical name.