This dissertation firstly optimized the demulsifying agent and the corresponding optimal operation conditions, and the pratical application verified the feasibility of the improved operation.

• 首先针对焦化污油预处理过程中破乳剂的使用局限性,开展新型破乳剂的筛选和研究工作,并将新型破乳剂和最佳操作条件应用到脱水操作中,节约了蒸汽能耗。