The causes behind breakage of the catalyst are excessive sodium and vanadium content in the feed oil, excessively high regeneration temperature and excessively high steam velocity in riser pipe.
The catalyst regeneration can be carried with air and steam for burning off the coke, and the activity of the regenerated catalyst was similar to that of fresh catalyst.
可用常规的空气和水蒸气进行烧焦再生，再生剂的活性与新鲜催化剂相当。
3
A great deal of saline wastewater containing Cl -, Ca2 + and Mg2 + from the ion exchange system of steam boiler is discharged during the regeneration of resin.