Title:
PROCESS FOR DRYING OIL SAND MATURE FINE TAILINGS
Document Type and Number:
WIPO Patent Application WO/2011/032253
Kind Code:
A9
Abstract:
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 floes and increasing the yield shear stress to form flocculated fine tailings while avoiding over-shearing of the floes; 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.
Inventors:
REVINGTON ADRIAN PETER (CA)
WEISS MARVIN HARVEY (CA)
WELLS PATRICK SEAN (CA)
HANN THOMAS CHARLES (CA)
WEISS MARVIN HARVEY (CA)
WELLS PATRICK SEAN (CA)
HANN THOMAS CHARLES (CA)
Application Number:
PCT/CA2009/001303
Publication Date:
July 14, 2011
Filing Date:
September 15, 2009
Export Citation:
Assignee:
SUNCOR ENERGY INC (CA)
REVINGTON ADRIAN PETER (CA)
WEISS MARVIN HARVEY (CA)
WELLS PATRICK SEAN (CA)
HANN THOMAS CHARLES (CA)
REVINGTON ADRIAN PETER (CA)
WEISS MARVIN HARVEY (CA)
WELLS PATRICK SEAN (CA)
HANN THOMAS CHARLES (CA)
International Classes:
B01D21/01; B01D21/02; B09B3/00; C10C3/14; C10G1/04; F26B3/00
Attorney, Agent or Firm:
ROBIC (1001 Square Victoria - Bloc E - 8th FloorMontreal, Quebec H2Z 2B7, CA)
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