Cold dense slurrying process for extracting bitumen from oil sand
    2.
    发明授权
    Cold dense slurrying process for extracting bitumen from oil sand 失效
    用于从油砂中提取沥青的冷稠浆料加工工艺

    公开(公告)号:US6007708A

    公开(公告)日:1999-12-28

    申请号:US943283

    申请日:1997-10-03

    IPC分类号: B03D1/02 C10G1/04

    CPC分类号: B03D1/02 C10G1/047 B03D1/1456

    摘要: Average grade oil sand is mixed with water to produce a low temperature (20-35.degree. C.), dense (1.4-1.65 g/cc) slurry. The slurry is pumped through a pipeline for sufficient time to condition it. Air is injected into the slurry after the last pump. The slurry density is adjusted to about 1.5 g/cc by adding flood water near the end of the pipeline. The slurry is introduced into a primary separation vessel slurry as it is introduced into the (PSV), excess air is vented from the PSV and a hot water underwash is used to heat the froth produced. Slurry loading to the PSV is greater than about 4.78 tonnes of oil sand/hour/square meter to reduce velocity gradient in the fluid in the vessel. Bitumen froth is recovered. When fed low grade oil sand, the process is modified by adding flotation aid chemicals to the slurry in the pipeline and subjecting the PSV tailings and middlings to secondary recovery with agitation and aeration in a secondary separation vessel.

    摘要翻译: 将平均级油砂与水混合以产生低温(20-35℃),致密(1.4-1.65g / cc)浆料。 浆料通过管道被泵送足够的时间来调节它。 最后一次泵将空气注入浆料。 通过在管道末端附近添加洪水,将浆料密度调节至约1.5g / cc。 当浆料被引入到(PSV)中时,将浆料引入初级分离容器浆料中,从PSV排出多余的空气,并使用热水洗涤剂来加热所产生的泡沫。 装载到PSV的泥浆大于约4.78吨油砂/小时/平方米,以减少船舶流体中的速度梯度。 沥青泡沫被回收。 当加入低等级​​油砂时,通过向管道中的浆料中加入浮选助剂化学物质,并在二次分离容器中搅拌和通气使PSV尾矿和中等二次回收物进行改性。

    Enhanced bitumen flotation
    4.
    发明授权
    Enhanced bitumen flotation 失效
    增强沥青浮选

    公开(公告)号:US07727385B2

    公开(公告)日:2010-06-01

    申请号:US11673479

    申请日:2007-02-09

    IPC分类号: B01D11/02

    摘要: A method and apparatus for recovering bitumen as froth from a feed stream having solids, water and bitumen is provided using a separating vessel having mounted thereon a downpipe assembly, the downpipe assembly having at least one downpipe and a nozzle in fluid communication with each downpipe, for aerating a stream of middlings withdrawn from the separating vessel and reintroducing the aerated middlings back to the separating vessel.

    摘要翻译: 使用具有安装在其上的分配容器,提供具有固体,水和沥青的来自进料流的沥青作为泡沫的方法和装置,所述分离容器安装有下管组件,所述降落管组件具有至少一个下管和与每个下管流体连通的喷嘴, 用于对从分离容器中取出的中间物流进行充气,并将充气中的重新引导回分离容器。

    Low energy process for extraction of bitumen from oil sand
    5.
    发明申请
    Low energy process for extraction of bitumen from oil sand 审中-公开
    从油砂中提取沥青的低能量过程

    公开(公告)号:US20060249431A1

    公开(公告)日:2006-11-09

    申请号:US11123031

    申请日:2005-05-06

    IPC分类号: C10G1/04

    CPC分类号: C10G1/047

    摘要: An improved low energy extraction process for recovering bitumen from oil sand whereby essentially all of the thermal energy input for processing the oil sand takes place at the slurry mixing step as opposed to at both the slurry mixing step and the slurry flooding step. Mined oil sand is mixed with sufficient hot slurry water to produce an oil sand slurry having a density in the preferred range of about 1.50 g/cc to about 1.60 g/cc and a temperature in the preferred range of about 40° C. to about 55° C., more preferably greater than about 43° C. The oil sand slurry is conditioned, preferably by pumping it through a pipeline for a sufficient length of time, and then flooded with cold flood water to produce a diluted slurry having a density in the range of about 1.4 g/cc to about 1.5 g/cc and a temperature generally below 40° C. and typically in the range of about 30° C. to about 35° C. The diluted slurry is introduced into a gravity separation vessel where bitumen froth is recovered.

    摘要翻译: 一种用于从油砂中回收沥青的改进的低能量提取方法,因此在浆料混合步骤中与浆料混合步骤和浆料淹没步骤相反,基本上所有用于加工油砂的热能输入都发生。 将精制油砂与足够的热浆水混合以产生密度在约1.50g / cc至约1.60g / cc的优选范围内且在约40℃至约优选范围内的温度的油砂浆料 55℃,更优选大于约43℃。将油砂浆料调节,优选通过将其泵送通过管道足够长的时间,然后用冷洪水充满水以产生具有密度 在约1.4g / cc至约1.5g / cc的范围内,通常温度低于40℃,通常在约30℃至约35℃的范围内。将稀释的浆液引入重力分离 收集沥青泡沫的容器。

    PRIMARY FROTH RECYCLE
    6.
    发明申请
    PRIMARY FROTH RECYCLE 有权
    主要回收

    公开(公告)号:US20090321326A1

    公开(公告)日:2009-12-31

    申请号:US12163590

    申请日:2008-06-27

    IPC分类号: C10G1/04

    CPC分类号: C10G1/047 B03B9/02

    摘要: A process for extracting bitumen from oil sand, comprising: mixing oil sand with process water to produce an oil sand slurry containing bitumen, sand, water and entrained air; conditioning the oil sand slurry; optionally flooding the conditioned oil sand slurry with flood water to dilute the slurry, if required; introducing the slurry into a primary separation vessel wherein separate layers of primary bitumen froth, middlings and sand tailings are formed; removing a portion of the primary bitumen froth from the primary separation vessel and recycling the portion of primary bitumen froth to that step of the process upstream of the primary separation vessel to join and mix with the feed stream moving to the primary separation vessel; and thereafter retaining said feed stream in said primary separation vessel to produce primary bitumen froth.

    摘要翻译: 一种从油砂中提取沥青的方法,包括:将油砂与工艺用水混合,生产含有沥青,砂,水和夹带空气的油砂浆料; 调理油砂泥浆; 如果需要,可以选择性地用调节水淹没经调节的油砂浆料以稀释浆料; 将浆料引入初级分离容器中,其中形成主要沥青泡沫,中间料和砂尾料的单独层; 从初级分离容器中除去主要沥青泡沫的一部分,并将主要沥青泡沫的一部分再循环到主分离容器上游的该步骤的步骤,以与移动到初级分离容器的进料流接合并混合; 然后将所述进料流保持在所述初级分离容器中以产生主要的沥青泡沫。

    ENHANCED BITUMEN FLOTATION
    9.
    发明申请
    ENHANCED BITUMEN FLOTATION 失效
    增强的白酒浮游

    公开(公告)号:US20080190817A1

    公开(公告)日:2008-08-14

    申请号:US11673479

    申请日:2007-02-09

    IPC分类号: B01D11/02

    摘要: A method and apparatus for recovering bitumen as froth from a feed stream having solids, water and bitumen is provided using a separating vessel having mounted thereon a downpipe assembly, the downpipe assembly having at least one downpipe and a nozzle in fluid communication with each downpipe, for aerating a stream of middlings withdrawn from the separating vessel and reintroducing the aerated middlings back to the separating vessel.

    摘要翻译: 使用具有安装在其上的分配容器,提供具有固体,水和沥青的来自进料流的沥青作为泡沫的方法和装置,所述分离容器安装有下管组件,所述降落管组件具有至少一个下管和与每个下管流体连通的喷嘴, 用于对从分离容器中取出的中间物流进行充气,并将充气中的重新引导回分离容器。

    Primary froth recycle
    10.
    发明授权
    Primary froth recycle 有权
    主要泡沫回收

    公开(公告)号:US08062511B2

    公开(公告)日:2011-11-22

    申请号:US12163590

    申请日:2008-06-27

    IPC分类号: C10G1/04

    CPC分类号: C10G1/047 B03B9/02

    摘要: A process for extracting bitumen from oil sand, comprising: mixing oil sand with process water to produce an oil sand slurry containing bitumen, sand, water and entrained air; conditioning the oil sand slurry; optionally flooding the conditioned oil sand slurry with flood water to dilute the slurry, if required; introducing the slurry into a primary separation vessel wherein separate layers of primary bitumen froth, middlings and sand tailings are formed; removing a portion of the primary bitumen froth from the primary separation vessel and recycling the portion of primary bitumen froth to that step of the process upstream of the primary separation vessel to join and mix with the feed stream moving to the primary separation vessel; and thereafter retaining said feed stream in said primary separation vessel to produce primary bitumen froth.

    摘要翻译: 一种从油砂中提取沥青的方法,包括:将油砂与工艺用水混合,生产含有沥青,砂,水和夹带空气的油砂浆料; 调理油砂泥浆; 如果需要,可以选择性地用调节水淹没经调节的油砂浆料以稀释浆料; 将浆料引入初级分离容器中,其中形成主要沥青泡沫,中间料和砂尾料的单独层; 从初级分离容器中除去主要沥青泡沫的一部分,并将主要沥青泡沫的一部分再循环到主分离容器上游的该步骤的步骤,以与移动到初级分离容器的进料流接合并混合; 然后将所述进料流保持在所述初级分离容器中以产生主要的沥青泡沫。