公开(公告)号：US20200157432A1

公开(公告)日：2020-05-21

申请号：US16752639

申请日：2020-01-25

Applicant: Suncor Energy Inc.

Inventor： Adrian Peter Revington ,  Oladipo Omotoso ,  Patrick Sean Wells ,  Thomas Charles Hann ,  Marvin Harvey Weiss ,  Trevor Bugg ,  Jamie Eastwood ,  Stephen Joseph Young ,  Hugues Robert O'Neill ,  Ana Cristina Sanchez

IPC: C10G1/04 ,  C10G33/04 ,  B01F5/04

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.

公开(公告)号：US20180079966A1

公开(公告)日：2018-03-22

申请号：US15820707

申请日：2017-11-22

Applicant: Suncor Energy Inc.

Inventor： Adrian Peter Revington ,  Oladipo Omotoso ,  Patrick Sean Wells ,  Thomas Charles Hann ,  Marvin Harvey Weiss ,  Trevor Bugg ,  Jamie Eastwood ,  Stephen Joseph Young ,  Hugues Robert O'Neill ,  Ana Cristina Sanchez

IPC: C10G1/04 ,  B01F5/04 ,  C10G33/04 ,  B01F5/00 ,  C02F11/14 ,  C02F103/10 ,  C02F1/56

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.