PROCESS FOR DRYING OIL SAND MATURE FINE TAILINGS

The present invention generally relates to the field of treating oil sand fine tailings. A process for drying fine tailings, which may use a pipeline reactor system, comprises providing an in-line flow of the fine tailings; continuously introducing a flocculent solution to cause dispersion and comme...

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Bibliographische Detailangaben
Hauptverfasser:	REVINGTON, Adrian, Peter, WEISS, Marvin, Harvey, WELLS, Patrick, Sean, HANN, Thomas, Charles
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING CHEMISTRY CRACKING HYDROCARBON OILS DISPOSAL OF SOLID WASTE DRYING DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM FUELS HEATING LIGHTING LUBRICANTS MECHANICAL ENGINEERING 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 PYROLIGNEOUS ACID RECLAMATION OF CONTAMINED SOIL SOIL 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 WEAPONS WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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Beschreibung
Zusammenfassung:	The present invention generally relates to the field of treating oil sand fine tailings. A process for drying fine tailings, which may use a pipeline reactor system, comprises providing an in-line flow of the fine tailings; continuously introducing a flocculent solution to cause dispersion and commence flocculation of the fine tailings and may comprise rapid turbulent mixing; subjecting the fine tailings to flocculation and water release conditioning in-line to cause formation and rearrangement of flocs and increasing the yield shear stress to form flocculated fine tailings while avoiding over-shearing of the flocs; and depositing the fine tailings to allow the release of water, formation of a non- flowing fine tailings deposit and drying of the non-flowing fine tailings deposit. The process enables effective in-line dispersion, flocculation and water release, resulting in reliable deposition and drying of the fine tailings deposit.