The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2020
Filed:
Nov. 22, 2017
Suncor Energy Centre, Calgary, CA;
Adrian Peter Revington, Fort McMurray, CA;
Oladipo Omotoso, Edmonton, CA;
Patrick Sean Wells, Fort McMurray, CA;
Thomas Charles Hann, Onoway, CA;
Marvin Harvey Weiss, Calgary, CA;
Trevor Bugg, Fort McMurray, CA;
Jamie Eastwood, Fort McMurray, CA;
Stephen Joseph Young, Fort McMurray, CA;
Hugues Robert O'Neill, Fort McMurray, CA;
Ana Cristina Sanchez, Fort McMurray, CA;
Suncor Energy Inc., Calgary, Alberta, CA;
Abstract
A process for dewatering oil sand fine tailings is provided and comprises a dispersion and floc build-up stage comprising in-line addition of a flocculent solution comprising an effective amount of flocculation reagent into a flow of the oil sand fine tailings; a gel stage wherein flocculated oil sand fine tailings is transported in-line and subjected to shear conditioning; a floc breakdown and water release stage wherein the flocculated oil sand fine tailings releases water and decreases in yield shear stress, while avoiding an oversheared zone; depositing the flocculated oil sand fine tailings onto a deposition area to form a deposit and to enable the release water to flow away from the deposit, preferably done in a pipeline reactor and managing shear according to yield stress and CST information and achieves enhanced dewatering.