Apparatus for treating lime mud
    1.
    发明授权
    Apparatus for treating lime mud 有权
    用于处理石灰泥的设备

    公开(公告)号:US07628964B2

    公开(公告)日:2009-12-08

    申请号:US11282690

    申请日:2005-11-21

    IPC分类号: B01J19/00

    摘要: A method for feeding lime mud into a lime kiln including a rotary kiln shell having an interior between a first end wall and a second end wall, the method including: feeding the lime mud into a flue gas flow in the interior of the rotary kiln shell or in close proximity to the shell to pretreat the lime mud; separating the pretreated lime mud from the flue gas flow; conveying the separated lime mud into the lime kiln, and calcining the separated lime mud in the lime kiln.

    摘要翻译: 一种将石灰泥送入石灰窑的方法,该石灰窑包括在第一端壁和第二端壁之间具有内部的回转窑壳,该方法包括:将石灰泥送入回转窑壳内部的烟气流中 或者靠近壳体预处理石灰泥; 将预处理的石灰泥与烟气流分离; 将分离的石灰泥输送到石灰窑中,并煅烧石灰窑中分离的石灰泥。

    Method for treating particulate material
    4.
    发明授权
    Method for treating particulate material 有权
    颗粒材料处理方法

    公开(公告)号:US08721785B2

    公开(公告)日:2014-05-13

    申请号:US12992520

    申请日:2009-05-08

    IPC分类号: C04B14/28

    摘要: This invention describes the use of a fluidized bed reactor in the carbonation of a solid, inorganic and alkaline particulate material which contains alkaline metal salts. It also describes a method for treating cement kiln dust (CKD) containing alkaline metal salts. The treatment method comprises two steps: (a) a hydration step; and (b) a carbonation step, wherein the carbonation step is carried out in a fluidized bed reactor. In a preferred aspect of the present invention, the treated CKD is used as an aggregate in sulfur polymer concrete (SPC). Accordingly, the present invention also provides a method for producing SPC, which method comprises heating and mixing treated CKD of the present invention, elemental sulfur and modified sulfur to produce a mixture. The SPC can be used as a barrier to restrict permeation of matter, e.g. in a containment construction for storing matter such as hazardous waste.

    摘要翻译: 本发明描述了流化床反应器在含有碱金属盐的固体,无机和碱性颗粒材料的碳酸化中的用途。 还描述了一种处理含碱金属盐的水泥窑灰(CKD)的方法。 处理方法包括两个步骤:(a)水合步骤; 和(b)碳酸化步骤,其中碳酸化步骤在流化床反应器中进行。 在本发明的优选方面,处理的CKD用作硫聚合物混凝土(SPC)中的骨料。 因此,本发明还提供了一种生产SPC的方法,该方法包括加热和混合本发明的经处理的CKD,元素硫和改性硫以产生混合物。 SPC可以用作限制物质渗透的屏障,例如 在用于储存诸如危险废物的物质的遏制结构中。

    METHOD FOR TREATING PARTICULATE MATERIAL
    6.
    发明申请
    METHOD FOR TREATING PARTICULATE MATERIAL 有权
    处理颗粒材料的方法

    公开(公告)号:US20110065854A1

    公开(公告)日:2011-03-17

    申请号:US12992520

    申请日:2009-05-08

    IPC分类号: C04B14/00 B01J8/24 C08K3/30

    摘要: This invention describes the use of a fluidized bed reactor in the carbonation of a solid, inorganic and alkaline particulate material which contains alkaline metal salts. It also describes a method for treating cement kiln dust (CKD) containing alkaline metal salts. The treatment method comprises two steps: (a) a hydration step; and (b) a carbonation step, wherein the carbonation step is carried out in a fluidized bed reactor. In a preferred aspect of the present invention, the treated CKD is used as an aggregate in sulfur polymer concrete (SPC). Accordingly, the present invention also provides a method for producing SPC, which method comprises heating and mixing treated CKD of the present invention, elemental sulfur and modified sulfur to produce a mixture. The SPC can be used as a barrier to restrict permeation of matter, e.g. in a containment construction for storing matter such as hazardous waste.

    摘要翻译: 本发明描述了流化床反应器在含有碱金属盐的固体,无机和碱性颗粒材料的碳酸化中的用途。 它还描述了一种处理含碱金属盐的水泥窑灰(CKD)的方法。 处理方法包括两个步骤:(a)水合步骤; 和(b)碳酸化步骤,其中碳酸化步骤在流化床反应器中进行。 在本发明的优选方面,处理的CKD用作硫聚合物混凝土(SPC)中的骨料。 因此,本发明还提供了一种生产SPC的方法,该方法包括加热和混合本发明的经处理的CKD,元素硫和改性硫以产生混合物。 SPC可以用作限制物质渗透的屏障,例如 在用于储存诸如危险废物的物质的遏制结构中。

    Process and system for producing commercial quality carbon dioxide from high solids lime mud
    7.
    发明申请
    Process and system for producing commercial quality carbon dioxide from high solids lime mud 有权
    从高固体石灰泥生产商业质量二氧化碳的工艺和体系

    公开(公告)号:US20080253956A1

    公开(公告)日:2008-10-16

    申请号:US11895440

    申请日:2007-08-24

    申请人: Robert A. Rossi

    发明人: Robert A. Rossi

    IPC分类号: C01B31/20 B01J8/20

    摘要: The invention features methods and systems for producing commercial quality carbon dioxide (CO2) of 90% to +99% purity using, wet calcium carbonate lime mud produced in a manufacturing operation, for instance, Kraft pulp mill lime mud (a.k.a., “lime mud”) as a feedstock to a multi-stage lime mud calcination process. This process may be fueled with waste water treatment plant (WWTP), sludge biomass, precipitated lignins, coal, or other low cost solid fuels. High reactivity “soft-burned” lime product (“calcine”) required in the mill's chemical recovery circuit is also produced, and steam and heated boiler feed-water is generated and exported to the mill's steam distribution and generation system as well as hot process water for use in the mill's boiler house and manufacturing operation. The system for calcining calcium carbonate lime mud produced from a re-causticizing manufacturing operation and converting it to re-burned lime and CO2 comprises a calciner and a combustor linked by a moving media heat transfer (MMHT) system or apparatus. The MMHT system or apparatus thermally links separate fluid bed combustion (exothermic) and calcination (endothermic) stages with a solid particulate media. The system further comprises a flash dryer or spray dryer that utilizes exhausted heat from the calcination stage.

    摘要翻译: 本发明的特征在于使用在制造操作中生产的湿碳酸钙石灰泥,例如牛皮纸浆厂,生产90%至99%纯度的商业品质二氧化碳(CO 2)的方法和系统 石灰泥(又名“石灰泥”)作为多阶段石灰泥煅烧过程的原料。 这个过程可以用废水处理厂(污水处理厂),污泥生物质,沉淀的木质素,煤或其他低成本的固体燃料来加油。 还生产了磨机化学回收回路所需的高反应性“软煅烧”石灰产品(“煅烧”),蒸汽和加热锅炉给水生产出口到工厂的蒸汽分配和发电系统以及热处理 用于轧机锅炉房和生产作业的水。 用于煅烧由再苛化制造操作产生的碳酸钙石灰泥并将其转化为再烧石灰和CO 2的系统包括通过移动介质传热(MMHT)连接的煅烧炉和燃烧器, 系统或装置。 MMHT系统或设备通过固体颗粒介质热连接单独的流化床燃烧(放热)和煅烧(吸热)阶段。 该系统还包括使用来自煅烧阶段的排出的热量的闪蒸干燥器或喷雾干燥器。

    METHODS FOR REACTIVATING PASSIVATED MINERAL RESIDUES

    公开(公告)号:US20240091743A1

    公开(公告)日:2024-03-21

    申请号:US18527079

    申请日:2023-12-01

    摘要: The instant disclosure sets forth a process for re-activating a mineral residue. The process includes providing a mineral residue, which includes a core and a shell around the core. In certain examples, the core comprises calcium (Ca), magnesium (Mg), or a combination thereof. The Ca and Mg is not present as elemental Ca or Mg but rather as a compound of Ca or of Mg, such as but not limited to Ca(OH)2 or Mg(OH)2. In certain examples, the shell comprises an oxide, a hydroxide, a carbonate, a silicate, a sulfite, a sulfate, a chloride, a nitrate, or nitrite, of calcium (Ca) or of magnesium (Mg), or a combination thereof. The process includes (a) fractionating the mineral residue; (b) contacting the mineral residue with an acid and fractionating the mineral residue; or (c) contacting the mineral residue with a base and fractionating the mineral residue. As a result, the mineral residue's core is exposed. In some examples, the shell is passivating and inhibits the Ca or Mg, or both, in the core from reacting with carbon dioxide (CO2). By exposing the core as described herein, a mineral residue's reactivity with carbon dioxide is increased.

    Process and system for producing commercial quality carbon dioxide from high solids lime mud
    10.
    发明授权
    Process and system for producing commercial quality carbon dioxide from high solids lime mud 有权
    从高固体石灰泥生产商业质量二氧化碳的工艺和系统

    公开(公告)号:US08865101B2

    公开(公告)日:2014-10-21

    申请号:US11895440

    申请日:2007-08-24

    申请人: Robert A. Rossi

    发明人: Robert A. Rossi

    IPC分类号: C01B31/20 B01J8/20

    摘要: The invention features methods and systems for producing commercial quality carbon dioxide (CO2) of 90% to +99% purity using, wet calcium carbonate lime mud produced in a manufacturing operation, for instance, Kraft pulp mill lime mud (a.k.a., “lime mud”) as a feedstock to a multi-stage lime mud calcination process. This process may be fueled with waste water treatment plant (WWTP), sludge biomass, precipitated lignins, coal, or other low cost solid fuels. High reactivity “soft-burned” lime product (“calcine”) required in the mill's chemical recovery circuit is also produced, and steam and heated boiler feed-water is generated and exported to the mill's steam distribution and generation system as well as hot process water for use in the mill's boiler house and manufacturing operation. The system for calcining calcium carbonate lime mud produced from a re-causticizing manufacturing operation and converting it to re-burned lime and CO2 comprises a calciner and a combustor linked by a moving media heat transfer (MMHT) system or apparatus. The MMHT system or apparatus thermally links separate fluid bed combustion (exothermic) and calcination (endothermic) stages with a solid particulate media. The system further comprises a flash dryer or spray dryer that utilizes exhausted heat from the calcination stage.

    摘要翻译: 本发明的特征在于使用在制造操作中生产的湿碳酸钙石灰泥制造商品质量二氧化碳(CO 2)90%至99%纯度的方法和系统,例如牛皮纸浆粉灰泥(又称“石灰泥” “)作为多阶段石灰泥煅烧过程的原料。 这个过程可以用废水处理厂(污水处理厂),污泥生物质,沉淀的木质素,煤或其他低成本的固体燃料来加油。 还生产了磨机化学回收回路所需的高反应性“软煅烧”石灰产品(“煅烧”),蒸汽和加热锅炉给水生产出口到工厂的蒸汽分配和发电系统以及热处理 用于轧机锅炉房和生产作业的水。 用于煅烧由再苛化制造操作产生的碳酸钙石灰泥并将其转化为再燃烧的石灰和CO 2的系统包括煅烧炉和通过移动介质传热(MMHT)系统或设备连接的燃烧器。 MMHT系统或设备通过固体颗粒介质热连接单独的流化床燃烧(放热)和煅烧(吸热)阶段。 该系统还包括使用来自煅烧阶段的排出的热量的闪蒸干燥器或喷雾干燥器。