超声破乳脱水及浮渣脱水资源化利用  

Development of ultrasonic dewatering and reusage of refinery scum

作　　者：叶国祥[1] 吕效平[1] 束长好[2] 韩萍芳[1] 朱勇军[1] 

机构地区：[1]南京工业大学超声化学工程研究所,江苏南京210009 [2]中石化扬子石油化工股份有限公司炼油厂,江苏南京210048

出　　处：《化工进展》2006年第12期1381-1385,共5页Chemical Industry and Engineering Progress

摘　　要：介绍了炼厂浮渣脱水技术的发展及超声破乳脱水领域的研究成果;综述了超声破乳脱水的优点有:在恰当的超声处理条件下能减少絮凝剂用量20%以上,浮渣超声脱水技术可加快浮渣处理速率,缩短脱水时间,超声处理5 min后浮渣含水率与沉降72 h后的效果相当,最终脱水率提高6%～7%,而且采用超声波破乳脱水技术进行浮渣破乳脱水,将脱水后浮渣应用于延迟焦化生产过程,可实现资源化利用,同时解决环保问题,获得较好的经济效益与社会效益。This paper presents the scum dewatering technologies and ultrasonic demulsification, and reviews the benefit of ultrasonic demulsification. A new way is introduced to recover the scum as for reuse. At a proper condition of ultrasound can reduce more than 20 % flocculant; ultrasonic dewatering technology can enhance scum treatment, reduce dewatedng time, and the moisture content of scum after 5min ultrasonic treatment is the same as that after 72 hours settling; and the final dewatering rate can be increased by 6%-7%. Finally, a new way for scum reuse is proposed to use the dewatered scum in delayed coking.

关 键 词：超声 破乳 脱水 浮渣 焦化 资源化 

分 类 号：TB559[理学—物理] TE992[理学—声学]