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公开(公告)号：US20210102125A1
公开(公告)日：2021-04-08
申请号：US17124695
申请日：2020-12-17
Applicant: Suncor Energy Inc.
Inventor： Adrian Peter Revington , Ana Cristina Sanchez , Trevor Bugg , Oladipo Omotoso
Abstract: Techniques for dewatering thick fine tailings may include flocculant dosing on a clay basis and then subjecting the flocculated tailings to dewatering, for instance by pipelining the flocculated material from flocculant addition to a deposition site. The thick fine tailings can be pre-treated by removing hydrocarbons and shear-thinning prior to flocculant addition.
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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
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.
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Patent Agency Ranking
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
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.
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公开(公告)号：US10967340B2
公开(公告)日：2021-04-06
申请号：US16786137
申请日：2020-02-10
Applicant: Suncor Energy Inc.
Abstract: A method and device for in-line injecting of flocculated agent into a fluid flow of mature fine tailings (MFT). The method includes the steps of: a) providing a fluid flow of mature fine tailings to be treated along a given channel fluidly connected to the pipeline; b) providing a source of flocculating agent; and c) introducing flocculating agent inside the fluid flow of mature fine tailings via a plurality of injection outlets for injecting the flocculating agent into the fluid flow in a dispersed manner so as to increase an exposed surface area of the injected flocculating agent and thus increase a corresponding reaction with the mature fine tailings, for an improved flocculation of said mature fine tailings, and/or other desired end results. Also disclosed is a kit with corresponding components for assembling the in-line injection device to be connected in-line with the pipeline carrying the mature fine tailings to be treated.
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公开(公告)号：US20150176893A1
公开(公告)日：2015-06-25
申请号：US14408690
申请日：2013-06-21
Applicant: SUNCOR ENERGY INC.
Inventor： Adrian Peter Revington , Ana Cristina Sanchez , Trevor Bugg , Oladipo Omotoso
CPC classification number: F26B1/00 , B09C1/08 , C02F1/56 , C02F2103/10 , C10G1/045 , C10G2300/1033 , C10G2300/208
Abstract: Techniques for dewatering thick fine tailings may include one or more pre-treatment steps, such as pre-shearing to reduce the yield stress prior to flocculation, hydrocarbon removal below a threshold to improve flocculation and dewatering, flocculant dosing on a clay basis, and providing certain properties of the thick fine tailings related to coarse and fine particle sizes and/or chemistry such as divalent cation content. Various advantages may result from pre-treatments based on thick fine tailings properties, such as reduced flocculant dosage requirements, improved dispersion of flocculant into the thick fine tailings and/or enhanced dewatering, for example. One or more of the pre-treatments may be performed.
Abstract translation: 用于脱水厚细细尾矿的技术可以包括一个或多个预处理步骤，例如在絮凝之前减少屈服应力的预剪切，将烃去除低于阈值以改善絮凝和脱水，以粘土为基础的絮凝剂给料 粗细尾矿的某些特性与粗细和细粒度和/或化学性质有关，例如二价阳离子含量。 例如，基于粗细尾矿性质的预处理可能产生各种优点，例如絮凝剂的用量要求降低，絮凝剂分散到粗细的尾矿中，和/或增强脱水。 可以执行一种或多种预处理。
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公开(公告)号：US20210170348A1
公开(公告)日：2021-06-10
申请号：US17178907
申请日：2021-02-18
Applicant: Suncor Energy Inc.
IPC: B01F5/04
Abstract: A method and device for in-line injecting of flocculent agent into a fluid flow of mature fine tailings (MFT). The method includes the steps of: a) providing a fluid flow of mature fine tailings to be treated along a given channel fluidly connected to the pipeline; b) providing a source of flocculating agent; and c) introducing flocculating agent inside the fluid flow of mature fine tailings via a plurality of injection outlets for injecting the flocculating agent into the fluid flow in a dispersed manner so as to increase an exposed surface area of the injected flocculating agent and thus increase a corresponding reaction with the mature fine tailings, for an improved flocculation of said mature fine tailings, and/or other desired end results. Also disclosed is a kit with corresponding components for assembling the in-line injection device to be connected in-line with the pipeline carrying the mature fine tailings to be treated.
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7.发明申请公开(公告)号：US20200171447A1
公开(公告)日：2020-06-04
申请号：US16786137
申请日：2020-02-10
Applicant: Suncor Energy Inc.
IPC: B01F5/04
Abstract: A method and device for in-line injecting of flocculated agent into a fluid flow of mature fine tailings (MAT). The method includes the steps of: a) providing a fluid flow of mature fine tailings to be treated along a given channel fluidly connected to the pipeline; b) providing a source of flocculating agent; and c) introducing flocculating agent inside the fluid flow of mature fine tailings via a plurality of injection outlets for injecting the flocculating agent into the fluid flow in a dispersed manner so as to increase an exposed surface area of the injected flocculating agent and thus increase a corresponding reaction with the mature fine tailings, for an improved flocculation of said mature fine tailings, and/or other desired end results. Also disclosed is a kit with corresponding components for assembling the in-line injection device to be connected in-line with the pipeline carrying the mature fine tailings to be treated.
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