Oil Extraction From Oil Sludge and TPH Elimination of Solids/Water by Ozonation

Misri Gozan

Energy and Environment Research, 2014, vol. 4, issue 2, 22

Abstract: About 1.1 million barrels of oil sludge are generated yearly in Indonesia by many oil and refinery industrial activities. Oil is strongly bound with solid particles in the sludge. Oilin the sludge June range from benzene, phenols to polycyclic aromatic hydrocarbons which are classified as toxic, mutagenic and carcinogenic for human and pollute the environment. Oilextraction is favorable option because of environmental and economical reasons. Oil sludge from an oil fields inSumatra, Indonesia was extracted at low temperature (40–70 °C) resulting in Total Petroleum Hydrocarbon (TPH) around 1–2%. After addition of 10,000 ppm REKLIN G04 surfactant, TPH extraction was improved to 9%. After decantation, effluent water containing ± 15,000 ppm TPH was ozonated for 60 minutes resulting in TPH reduction to ± 5 ppm. After ozonation, TPH of discharge solids was only 7–40 ppm. Fingerprint by gas chromatography showed removal of light fraction of oil after ozonation.

Date: 2014
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