西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (1): 116-118.DOI: 10.3863/j.issn.1000-2634.2008.01.032

• 油气化学工程与化工 • Previous Articles     Next Articles

Oxidation Treatment of Oilfield Sludge with Supercritical Water

JING Guo-lin HUO Wei-jing CUI Bao-chen   

  1. Faculty of Chemistry and Chemical Engineering,Daqing Petroleum Institute,Daqing Heilongjiang 163318,China
  • Received:2007-05-12 Revised:1900-01-01 Online:2008-02-20 Published:2008-02-20

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Abstract: Supercritical water oxidation (SCWO) is a recent development aiming at the destruction of organic pollutants.The research focuses on the process simulation of oxidation of oil-field sludge in supercritical water with a simple self-made experimental facility.In the supercritical combustion reactions,the removal of crude oil sludge is affected by the factors of reaction time,temperature,pressure and pH value.The results show that supercritical water oxidation can effectively remove the crude oil in the oil-field sludge,the removal efficiency of crude oil reaches 95%.The important factors are reaction time,reaction temperature and reaction pressure which influence the removal of the crude in sludge.The pH value is secondary factor.The removal efficiency of crude oil in the oil-field sludge increases with increasing the reaction temperature,reaction time and reaction pressure.

Key words: supercritical water oxidation, oil-field sludge, crude oil, removal, harmless treatment

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