ASH REMOVAL FROM COAL: PROCESS TO AVOID LARGE QUANTITIES OF HYDROGEN FLUORIDE ON-SITE
    1.
    发明申请
    ASH REMOVAL FROM COAL: PROCESS TO AVOID LARGE QUANTITIES OF HYDROGEN FLUORIDE ON-SITE 审中-公开
    从煤开采的ASH:在现场避免大量氟化氢的过程

    公开(公告)号:US20110078948A1

    公开(公告)日:2011-04-07

    申请号:US12571514

    申请日:2009-10-01

    CPC classification number: C10L9/02 C01B7/191

    Abstract: A method and system for treating coal with hydrogen fluoride to remove fly ash and thereafter regenerating substantially all of the hydrogen fluoride used during the process (thereby significantly reducing the amount of HF on site). An exemplary method includes the steps of charging at least one reaction vessel with coal containing fly ash; feeding hydrogen fluoride into the reaction vessel to form a first reaction mixture of soluble reaction products, insoluble fluoride compounds and initially clean coal; separating out the first soluble and insoluble reaction products; feeding nitric acid into the same reaction vessel to react with any remaining fly ash components and separating out those second reaction products; and regenerating substantially all of the hydrogen fluoride used in the first fluoride reaction.

    Abstract translation: 一种用氟化氢处理煤以除去飞灰并随后在该过程中使用的基本上所有氟化氢再生(从而显着减少现场HF的量)的方法和系统。 一种示例性方法包括以下步骤:向含有飞灰的煤装入至少一个反应容器; 将氟化氢进料到反应容器中以形成可溶性反应产物,不溶性氟化物和初始清洁煤的第一反应混合物; 分离出第一种可溶性和不溶性的反应产物; 将硝酸加入到同一反应容器中以与任何剩余的飞灰组分反应并分离出第二反应产物; 并且基本上再生第一氟化物反应中使用的所有氟化氢。

    AVAILABILITY IMPROVEMENTS TO HEAVY FUEL FIRED GAS TURBINES
    2.
    发明申请
    AVAILABILITY IMPROVEMENTS TO HEAVY FUEL FIRED GAS TURBINES 审中-公开
    重型燃油燃气涡轮机的可用性改进

    公开(公告)号:US20100287944A1

    公开(公告)日:2010-11-18

    申请号:US12767134

    申请日:2010-04-26

    Abstract: Maintenance operations for a hot gas path of a gas turbine require shutdown and cooled down conditions. When a gas turbine is shut down, thermal gradients in the rotor cause stresses that limit the life of the major components. As the cooling rate is increased to reduce the time, the stresses are increased, reducing rotor life. A method and equipment are provided to reduce the overall cycle time for the maintenance, yet mitigate the life penalties, thereby providing greater power production while maintaining (or potentially extending) rotor life. The method includes small hold times during the turbine shutdown and startup and slower turbine ramp rates during cooldown and startup, which more than offset thermal stresses from a forced cooldown, considerably shortening the overall operation.

    Abstract translation: 燃气轮机的热气路的维护操作需要关闭和冷却条件。 当燃气轮机关闭时,转子中的热梯度会引起限制主要部件寿命的应力。 随着冷却速度的增加,减少时间,应力增加,减少转子寿命。 提供了一种方法和设备,以减少维护的整个周期时间,同时减轻寿命,从而在保持(或潜在地延长)转子寿命的同时提供更大的功率生产。 该方法在涡轮机关闭和启动期间具有小的保持时间,并且在冷却和启动期间较慢的涡轮增压速率,其超过抵消强制冷却时的热应力,显着缩短了整个操作。

    Use of oxygen concentrators for separating N2 from blast furnace gas
    4.
    发明授权
    Use of oxygen concentrators for separating N2 from blast furnace gas 有权
    使用氧浓缩器将N2与高炉煤气分离

    公开(公告)号:US08177886B2

    公开(公告)日:2012-05-15

    申请号:US12436849

    申请日:2009-05-07

    CPC classification number: F01D25/30 B01D2256/12 B01D2257/102 B01D2259/402

    Abstract: A method of continuously removing nitrogen from a blast furnace exhaust stream containing oxygen, nitrogen and unburned hydrocarbons in order to form a supplemental feed to a gas turbine engine containing residual hydrocarbon fuel by first removing entrained solid particulates in the blast furnace exhaust stream to create a substantially particulate-free gas, passing the particulate-free stream through at least one separator bed containing an adsorptive material capable of adsorbing nitrogen from air, adsorbing substantially all of the nitrogen as interstitial nitrogen on solids within the separator bed, feeding non-adsorbed hydrocarbon fuel and oxygen components leaving the separator to a gas turbine engine and removing the adsorbed nitrogen from the separator bed.

    Abstract translation: 从含有氧,氮和未燃碳氢化合物的高炉废气流中连续除氮的方法,以便通过首先除去高炉废气流中夹带的固体颗粒形成含有残余烃燃料的燃气涡轮发动机的补充进料,以产生 基本上无颗粒的气体,使无颗粒物流通过至少一个含有能从空气中吸附氮气的吸附材料的分离床,基本上将所有的氮作为间隙氮吸附在分离器床内的固体上,将未吸附的烃 燃料和氧气组分离开分离器到燃气涡轮发动机并从分离器床去除吸附的氮。

    Stoichiometric exhaust gas recirculation combustor with extraction port for cooling air
    6.
    发明授权
    Stoichiometric exhaust gas recirculation combustor with extraction port for cooling air 有权
    化学计量排气再循环燃烧器,具有用于冷却空气的抽出口

    公开(公告)号:US08910485B2

    公开(公告)日:2014-12-16

    申请号:US13087463

    申请日:2011-04-15

    Abstract: The present application provides a stoichiometric exhaust gas recovery turbine system. The stoichiometric exhaust gas recovery turbine system may include a main compressor for compressing a flow of ambient air, a turbine, and a stoichiometric exhaust gas recovery combustor. The stoichiometric exhaust gas recovery combustor may include a combustion liner, an extended flow sleeve in communication with the main compressor, and an extraction port in communication with the turbine. The extended flow sleeve receives the flow of ambient air from the main compressor so as to cool the combustion liner and then the flow of ambient air splits into an extraction flow to the turbine via the extraction port and a combustion flow within the combustion liner.

    Abstract translation: 本申请提供了化学计量的废气回收涡轮机系统。 化学计量排气回收涡轮机系统可以包括用于压缩环境空气流,涡轮机和化学计量排气回收燃烧器的主压缩机。 化学计量废气回收燃烧器可以包括燃烧衬套,与主压缩机连通的延伸流动套筒以及与涡轮机连通的抽出口。 延伸的流动套管接收来自主压缩机的环境空气流,以便冷却燃烧衬套,然后环境空气的流动经由抽出口和燃烧衬套内的燃烧流分解成到涡轮机的抽吸流。

    Stoichiometric Exhaust Gas Recirculation Combustor
    8.
    发明申请
    Stoichiometric Exhaust Gas Recirculation Combustor 有权
    化学计量排气再循环燃烧器

    公开(公告)号:US20120260660A1

    公开(公告)日:2012-10-18

    申请号:US13087463

    申请日:2011-04-15

    Abstract: The present application provides a stoichiometric exhaust gas recovery turbine system. The stoichiometric exhaust gas recovery turbine system may include a main compressor for compressing a flow of ambient air, a turbine, and a stoichiometric exhaust gas recovery combustor. The stoichiometric exhaust gas recovery combustor may include a combustion liner, an extended flow sleeve in communication with the main compressor, and an extraction port in communication with the turbine. The extended flow sleeve receives the flow of ambient air from the main compressor so as to cool the combustion liner and then the flow of ambient air splits into an extraction flow to the turbine via the extraction port and a combustion flow within the combustion liner.

    Abstract translation: 本申请提供了化学计量的废气回收涡轮机系统。 化学计量排气回收涡轮机系统可以包括用于压缩环境空气流,涡轮机和化学计量排气回收燃烧器的主压缩机。 化学计量废气回收燃烧器可以包括燃烧衬套,与主压缩机连通的延伸流动套筒以及与涡轮机连通的抽出口。 延伸的流动套管接收来自主压缩机的环境空气流,以便冷却燃烧衬套,然后环境空气的流动经由抽出口和燃烧衬套内的燃烧流分解成到涡轮机的抽吸流。

    UNLOADED SPEED CONTROL FOR AVAILABILITY IMPROVEMENTS TO HEAVY FUEL FIRED GAS TURBINES
    10.
    发明申请
    UNLOADED SPEED CONTROL FOR AVAILABILITY IMPROVEMENTS TO HEAVY FUEL FIRED GAS TURBINES 审中-公开
    卸载速度控制,用于重型燃油燃气涡轮机的可用性改进

    公开(公告)号:US20100287948A1

    公开(公告)日:2010-11-18

    申请号:US12776616

    申请日:2010-05-10

    Abstract: Control of gas turbine speed and acceleration during unloaded rotation may limit stresses on components and facilitate timely operational performance. Operation of a torque converter driving a gas turbine shaft from a starter motor provides control over acceleration and speed of the gas turbine shaft. Hydraulic coupling between the input and output of the torque converter is adjusted by draining and refilling the working fluid in a body of the torque converter to control acceleration and speed of the rotor shaft during a first speed range. Vane positioning within the torque converter may be alternated between discrete speed settings to control acceleration and speed of the rotor shaft during a second speed range. A turbine control system with an acceleration schedule may provide control signals for these functions.

    Abstract translation: 在无负载旋转期间控制燃气轮机速度和加速度可能会限制组件上的应力,并有助于及时的运行性能。 从起动电动机驱动燃气轮机轴的变矩器的操作提供对燃气轮机轴的加速度和速度的控制。 液力变矩器的输入和输出之间的液压耦合通过在变矩器的体内排出和重新填充工作流体来调节,以在第一速度范围内控制转子轴的加速度和速度。 变矩器内的叶片定位可以在离散速度设置之间交替,以在第二速度范围内控制转子轴的加速度和转速。 具有加速计划的涡轮机控制系统可以为这些功能提供控制信号。

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