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.

公开(公告)号：US11124706B2

公开(公告)日：2021-09-21

申请号：US16079455

申请日：2017-02-23

Applicant: SUNCOR ENERGY INC.

Inventor： Oladipo Omotoso ,  Adrian Revington ,  Marc Goranson ,  Patrick Sean Wells ,  Macoura Kone ,  Daryl Hockley ,  Baha Elsayed Abulnaga ,  John Diep ,  Benito Moyls ,  Alan Melanson ,  Rodney Guest ,  Naveen Prathap ,  Babak Derakhshandeh

IPC: C10G1/04 ,  E21B21/06 ,  B65G5/00 ,  F17D1/08 ,  B09C1/08 ,  B09B3/00 ,  C02F11/148 ,  C08F220/56 ,  E02B8/06 ,  C02F11/14 ,  C01F7/76 ,  C01F11/46 ,  C02F101/10 ,  C02F101/34 ,  C08F220/18 ,  C02F103/10 ,  C02F11/147 ,  C02F11/00

Abstract: A process for the treatment of thick fine tailings that include constituents of concern (CoCs) and suspended solids is provided. The process includes subjecting the thick fine tailings to treatments including chemical immobilization of the CoCs, polymer flocculation of the suspended solids, and dewatering. The chemical immobilization can include the addition of compounds enabling the insolubilization of the CoCs. Subjecting the thick fine tailings to chemical immobilization and polymer flocculation can facilitate production of a reclamation-ready material, which can enable disposing of the material as part of a permanent aquatic storage structure (PASS).