PROCESSING METHOD FOR WASTE LIQUID CONTAINING CRUDE OIL AND PROCESSING EQUIPMENT FOR WASTE LIQUID CONTAINING CRUDE OIL

To provide a processing method for a waste liquid containing a crude oil and processing equipment for a waste liquid containing a crude oil which enable a reduction in the usage of a flocculant by efficiently recovering oil and water in a waste liquid containing a crude oil such as slop, and an impr...

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Bibliographische Detailangaben
Hauptverfasser:	ONISHI NORIHIKO, KOBAYASHI TAKUYA, SUZUKI ARATA, SUZUKI TOSHIHIRO, KANO KAZUNORI, SUZUKI YUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SEPARATION TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	To provide a processing method for a waste liquid containing a crude oil and processing equipment for a waste liquid containing a crude oil which enable a reduction in the usage of a flocculant by efficiently recovering oil and water in a waste liquid containing a crude oil such as slop, and an improvement in the water quality of a separated waste water.SOLUTION: A processing method for a waste liquid containing a crude oil includes a heating step of heating a waste liquid containing a crude oil to 45-65°C, an emulsion breaker addition step of adding an emulsion breaker to the heated waste liquid, a centrifugal separation step of centrifugally separating the waste liquid with the addition of an emulsion breaker into three components of light liquid, heavy liquid, and sludge, and a flocculant addition step of adding a flocculant to heavy oil obtained in the centrifugal step to flocculate an oil content and sludge remaining in the heavy liquid.SELECTED DRAWING: Figure 1 【課題】スロップのような原油含有廃液中の油と水とを効率よく回収し、凝集剤の使用量を低減でき、さらに、分離された排水の水質を更に改善することができる原油含有廃液の処理方法及び原油含有廃液の処理装置を提供する。【解決手段】原油を含有する廃液を４５〜６５℃に加温する加温工程と、加温された廃液にエマルジョンブレーカーを添加するエマルジョンブレーカー添加工程と、エマルジョンブレーカーが添加された廃液を遠心分離し、軽液、重液及びスラッジの三成分に分離する遠心分離工程と、遠心分離工程で得られた重液に凝集剤を添加し、該重液中に残留する油分及びスラッジを凝集させる凝集剤添加工程とを備える原油含有廃液の処理方法である。【選択図】図１