Cooling process and system for dry cooling power plants

    公开(公告)号:US09927178B1

    公开(公告)日:2018-03-27

    申请号:US15149152

    申请日:2016-05-08

    IPC分类号: F28C1/04 F02C6/18 F01K9/00

    摘要: A seasonal process that captures stores and uses water in an ambient temperature-dependent manner to improve the efficiency of a natural gas power plant, comprising: (a) providing a natural gas power plant, the natural gas power plant having a flue gas stream, a cooling tower, and a gas turbine; (b) providing a water collection system; (c) providing a water storage facility; wherein the flue gas stream comprises uncondensed water vapor; wherein the water collection system is operably connected to the flue gas stream and the flue gas stream is directed to flow, at least in part, into the water collection system; wherein the water collection system is operably connected to the water storage facility; wherein the water storage facility is operably connected to the cooling tower and the water storage facility is operably connected to the gas turbine; wherein the process comprises the following steps of condensing flue gas water or using water that has been condensed from the flue gas stream based on outdoor ambient dry bulb temperature: (I) Only condensing water from the flue gas stream to produce a condensed water stream if outdoor ambient dry bulb temperature is less than 85° F.; (II) Only using condensed water to spray cool the cooling tower if outdoor ambient dry bulb temperature is at least 85° F.; (III) Only using condensed water to fog cool the gas turbine if outdoor ambient dry bulb temperature is at least 55° F.; wherein condensed water that is not immediately used to cool the cooling tower or to fog cool the gas turbine is stored in the water storage facility; and wherein the process uses a total amount of water on an annual basis to cool the cooling tower and to fog cool the gas turbine that does not exceed the annual amount of water condensed from the flue gas stream. Optionally, the process has a cooling tower that is a dry cooling tower and condensed water is used to spray cool the dry cooling tower, or the cooling tower is a wet cooling tower, or the cooling tower is a hybrid wet-dry cooling tower. The process may further comprise a water collection system having a three stage desiccant cycle and a calcium chloride desiccant that recovers at least about 60 wt % of the water from the flue gas, operates at or above ambient pressure or comprises plastic piping or plastic vessels. Or the process may further comprise using a water collection system having at least one direct contact condensing column that recovers at least about 60 wt % of the water from the flue gas, operates at or above ambient pressure or comprises plastic piping or plastic vessels. Or the process may further comprise using a water collection system having at least one direct contact condenser and a rotating wheel heat exchanger that recovers at least about 60 wt % of the water from the flue gas, operates at or above ambient pressure, or further comprises plastic piping or plastic vessels. The coefficient of performance for the cooling process is optionally at least 2.0.

    CIRCULATING MOVING BED SYSTEM FOR CO2 SEPARATION, AND METHOD OF SAME
    2.
    发明申请
    CIRCULATING MOVING BED SYSTEM FOR CO2 SEPARATION, AND METHOD OF SAME 有权
    循环用于二氧化碳分离的移动床系统及其方法

    公开(公告)号:US20150010452A1

    公开(公告)日:2015-01-08

    申请号:US14325519

    申请日:2014-07-08

    IPC分类号: B01D53/96 B01D53/62

    摘要: A circulating moving bed and process for separating a carbon dioxide from a gas stream is disclosed. The circulating moving bed can include an adsorption reactor and a desorption reactor, and a sorbent that moves through the two reactors. The sorbent can enter the adsorptive reactor and one end and move to an exit point distal to its entry point, while a CO2 feed stream can enter near the distal point and move countercurrently through the sorbent to exit at a position near the entry point of the sorbent. The sorbent can adsorb the CO2 by concentration swing adsorption and adsorptive displacement. The sorbent can then transfer to a regeneration reactor and can move countercurrently against a flow of steam through the regeneration reactor. The sorbent can be regenerated and the carbon dioxide recaptured by desorbing the carbon dioxide from the sorbent using concentration swing desorption and desorptive displacement with steam.

    摘要翻译: 公开了一种循环移动床和用于从气流中分离二氧化碳的方法。 循环移动床可以包括吸附反应器和解吸反应器,以及移动通过两个反应器的吸附剂。 吸附剂可以进入吸附反应器并且一端移动到远离其入口点的出口点,而CO 2进料流可以进入远端附近并且逆流地通过吸附剂,以在接近入口处的入口附近的位置离开 吸附剂 吸附剂可通过浓度变化吸附和吸附位移吸附CO2。 然后,吸附剂可以转移到再生反应器,并且可以逆流逆向通过再生反应器的蒸汽流。 吸附剂可以再生,并且通过使用浓缩挥发解吸和用蒸汽解吸取代从吸附剂中解吸二氧化碳来重新捕获二氧化碳。

    ROTARY MOVING BED FOR CO2 SEPARATION AND USE OF SAME
    3.
    发明申请
    ROTARY MOVING BED FOR CO2 SEPARATION AND USE OF SAME 有权
    用于二氧化碳分离的旋转移动床和其使用

    公开(公告)号:US20150007725A1

    公开(公告)日:2015-01-08

    申请号:US14325579

    申请日:2014-07-08

    IPC分类号: B01D53/06

    摘要: A rotary moving bed and process for separating a carbon dioxide from a gas stream is disclosed. The rotary moving bed can have a rotational assembly rotating on a vertical axis, and a plurality of sorbent cells positioned horizontally to the axis of rotation that fills a vertical space in the moving bed, where the sorbent cells adsorb the carbon dioxide by concentration swing adsorption and adsorptive displacement. The sorbent can be regenerated and the carbon dioxide recaptured by desorbing the carbon dioxide from the sorbent using concentration swing adsorption and desorptive displacement with steam. The gas flows in the system flow in a direction horizontal to the axis of rotation and in a direction opposite the rotational movement of the sorbent cells.

    摘要翻译: 公开了一种用于从气流中分离二氧化碳的旋转移动床和方法。 旋转移动床可以具有在垂直轴线上旋转的旋转组件和水平地定位在旋转轴线上的多个吸附单元,其填充移动床中的垂直空间,其中吸附单元通过浓度变化吸附吸附二氧化碳 和吸附位移。 吸附剂可以再生,并且通过使用浓度变化吸附和蒸汽的解吸位移从吸附剂中解吸二氧化碳来重新捕获二氧化碳。 气体在系统流动中沿着与旋转轴线水平的方向和与吸附剂单元的旋转运动相反的方向流动。

    Rotary moving bed for CO2 separation and use of same
    9.
    发明授权
    Rotary moving bed for CO2 separation and use of same 有权
    旋转移动床用于二氧化碳分离和使用

    公开(公告)号:US09539540B2

    公开(公告)日:2017-01-10

    申请号:US14325579

    申请日:2014-07-08

    IPC分类号: B01D53/02 B01D53/83 B01D53/62

    摘要: A rotary moving bed and process for separating a carbon dioxide from a gas stream is disclosed. The rotary moving bed can have a rotational assembly rotating on a vertical axis, and a plurality of sorbent cells positioned horizontally to the axis of rotation that fills a vertical space in the moving bed, where the sorbent cells adsorb the carbon dioxide by concentration swing adsorption and adsorptive displacement. The sorbent can be regenerated and the carbon dioxide recaptured by desorbing the carbon dioxide from the sorbent using concentration swing adsorption and desorptive displacement with steam. The gas flows in the system flow in a direction horizontal to the axis of rotation and in a direction opposite the rotational movement of the sorbent cells.

    摘要翻译: 公开了一种用于从气流中分离二氧化碳的旋转移动床和方法。 旋转移动床可以具有在垂直轴线上旋转的旋转组件和水平地定位在旋转轴线上的多个吸附单元,其填充移动床中的垂直空间,其中吸附单元通过浓度变化吸附吸附二氧化碳 和吸附位移。 吸附剂可以再生,并且通过使用浓度变化吸附和蒸汽的解吸位移从吸附剂中解吸二氧化碳来重新捕获二氧化碳。 气体在系统流动中沿着与旋转轴线水平的方向和与吸附剂单元的旋转运动相反的方向流动。