System and method for the calcination of minerals
    4.
    发明授权
    System and method for the calcination of minerals 有权
    矿物煅烧的系统和方法

    公开(公告)号:US09469884B2

    公开(公告)日:2016-10-18

    申请号:US14297492

    申请日:2014-06-05

    申请人: CALIX LTD.

    摘要: A system and method for the calcination of minerals. The system comprises a vertically disposed reactor segment configured to impart horizontal forces on particles passing through the reactor segment in a vertical direction; an injector unit for receiving granular feedstock, the injector unit being disposed at a top portion of the reactor segment, whereby granules of the feedstock move through the reactor segment in a granular flow under at least one of a group consisting of a force of steam, gravitational force and a centrifugal force; a reactor heat exchange unit thermally coupled to a wall of the reactor segment for providing heat to the flowing granules inside the reactor segment through heat transfer through the wall of the reactor segment; one or more inlets formed in the reactor segment for introducing a superheated gas into the reactor segment to create conditions of a gas-solid multiphase system; and one or more exhaust openings formed in the retort segment such that gas products are at least partially flushed from the reactor segment under the flow of the superheated gas from the inlets to the exhaust openings.

    摘要翻译: 矿物煅烧的系统和方法。 该系统包括垂直设置的反应器段,构造成在水平方向上通过反应器段的颗粒上施加水平力; 用于接收颗粒原料的注射器单元,所述注射器单元设置在所述反应器段的顶部,由此所述原料的颗粒在颗粒流中在至少一个蒸汽力作用下移动通过反应器段, 重力和离心力; 热反应器热交换单元,其热耦合到所述反应器段的壁上,用于通过经由所述反应器段的壁的热传递来向所述反应器段内的流动颗粒提供热量; 在反应器段中形成一个或多个入口,用于将过热气体引入反应器段以产生气固多相系统的条件; 以及形成在蒸馏段中的一个或多个排气口,使得在过热气体从入口到排气口的流动下,气体产物至少部分地从反应器段冲洗。

    PROCESS AND SYSTEM FOR PRODUCING COMMERCIAL QUALITY CARBON DIOXIDE FROM RECAUSTICIZING PROCESS CALCIUM CARBONATES

    公开(公告)号:US20160207778A1

    公开(公告)日:2016-07-21

    申请号:US15003984

    申请日:2016-01-22

    申请人: Robert A. Rossi

    发明人: Robert A. Rossi

    IPC分类号: C01B31/20 B01J8/26

    摘要: The invention features methods and systems for recovering carbon dioxide, for producing commercial quality carbon dioxide (CO2) of 90% to +99% purity using, wet calcium carbonate lime mud produced in a recausticizing process that also produces caustic soda, for instance, Kraft paper 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 low, or negative cost “carbon-neutral” fuels such as waste water treatment plant (WWTP) sludge, biomass, precipitated lignins, coal, or other low cost solid fuels. High reactivity, high-quality calcined lime mud (a.k.a. re-burned lime, or calcine), required in the Kraft paper pulp mill's recausticizing process is also produced, and superheated high pressure steam and hot 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 manufacturing operation. The system for calcining calcium carbonate lime mud produced from a recausticizing manufacturing operation and converting it to calcined lime mud 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 enthalpy from the calcination stage.

    PROCESS FOR SYNTHESIS OF CALCIUM OXIDE
    7.
    发明申请
    PROCESS FOR SYNTHESIS OF CALCIUM OXIDE 有权
    合成氧化钙的方法

    公开(公告)号:US20140339095A1

    公开(公告)日:2014-11-20

    申请号:US14361911

    申请日:2012-11-30

    发明人: Stuart Licht

    IPC分类号: C25B1/18

    摘要: The present invention relates to processes for making calcium oxide electrolytically using calcium carbonate as a starting material. In a direct process, the present invention involves heating calcium carbonate to a temperature greater than its melting point or heating a molten mixture containing calcium carbonate; and subjecting the molten calcium carbonate or molten mixture to electrolysis to generate calcium oxide and oxygen, and a reduced carbon product. In an indirect process, the present invention involves heating solid calcium carbonate in a closed container to cause thermal decomposition to calcium oxide, and directing the evolved hot carbon dioxide byproduct into a molten carbonate solution, and subjecting the hot carbon dioxide molten mixture to electrolysis to generate solid carbon and oxygen, and a reduced carbon product

    摘要翻译: 本发明涉及使用碳酸钙作为原料电解制造氧化钙的方法。 在直接方法中,本发明涉及将碳酸钙加热至大于其熔点的温度或加热含有碳酸钙的熔融混合物; 并使熔融碳酸钙或熔融混合物电解以产生氧化钙和氧气,还原碳产物。 在间接方法中,本发明涉及将密闭容器中的固体碳酸钙加热以引起氧化钙的热分解,并将放出的热二氧化碳副产物引入熔融碳酸盐溶液中,并将热二氧化碳熔融混合物电解至 产生固体碳和氧,还原碳产物

    System and Method for the Calcination of Minerals
    8.
    发明申请
    System and Method for the Calcination of Minerals 有权
    矿物煅烧系统与方法

    公开(公告)号:US20110008227A1

    公开(公告)日:2011-01-13

    申请号:US12295468

    申请日:2007-04-02

    IPC分类号: B01J6/00 C01F11/06 C10B1/04

    摘要: A system and method for the calcination of minerals. The system comprises a vertically disposed reactor segment configured to impart horizontal forces on particles passing through the reactor segment in a vertical direction; an injector unit for receiving granular feedstock, the injector unit being disposed at a top portion of the reactor segment, whereby granules of the feedstock move through the reactor segment in a granular flow under at least one of a group consisting of a force of steam, gravitational force and a centrifugal force; a reactor heat exchange unit thermally coupled to a wall of the reactor segment for providing heat to the flowing granules inside the reactor segment through heat transfer through the wall of the reactor segment; one or more inlets formed in the reactor segment for introducing a superheated gas into the reactor segment to create conditions of a gas-solid multiphase system; and one or more exhaust openings formed in the retort segment such that gas products are at least partially flushed from the reactor segment under the flow of the superheated gas from the inlets to the exhaust openings.

    摘要翻译: 矿物煅烧的系统和方法。 该系统包括垂直设置的反应器段,构造成在水平方向上通过反应器段的颗粒上施加水平力; 用于接收颗粒原料的注射器单元,所述注射器单元设置在所述反应器段的顶部,由此所述原料的颗粒在颗粒流中在至少一个蒸汽力作用下移动通过反应器段, 重力和离心力; 热反应器热交换单元,其热耦合到所述反应器段的壁上,用于通过经由所述反应器段的壁的热传递来向所述反应器段内的流动颗粒提供热量; 在反应器段中形成一个或多个入口,用于将过热气体引入反应器段以产生气固多相系统的条件; 以及形成在蒸馏段中的一个或多个排气口,使得在过热气体从入口到排气口的流动下,气体产物至少部分地从反应器段冲洗。