化工进展

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超声破乳脱水及浮渣脱水资源化利用

叶国祥,吕效平,束长好,韩萍芳,朱勇军   

  1. 南京工业大学超声化学工程研究所;中石化扬子石油化工股份有限公司炼油厂
  • 出版日期:2006-12-25 发布日期:2006-12-25

Development of ultrasonic dewatering and reusage of refinery scum

YE Guoxiang,LU Xiaoping,SHU Changhao,HAN Pingfang,ZHU Yongjun   

  1. Institute of Sonochemical EngineeringNanjing University of TechnologyYangzi Petrochemical Company Ltd.SINOPEC
  • Online:2006-12-25 Published:2006-12-25

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。

Abstract: This paper presents the scum dewatering technologies and ultrasonic demulsificationand 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 treatmentreduce dewatering timeand 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 67. Finallya new way for scum reuse is proposed to use the dewatered scum in delayed coking.

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