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111 条记录 (耗时 0.023 秒)

    METHOD AND SYSTEM FOR IMPROVING BOILER EFFECTIVENESS
    2.
    发明申请
    METHOD AND SYSTEM FOR IMPROVING BOILER EFFECTIVENESS 审中-公开

    公开(公告)号：US20180010792A1

    公开(公告)日：2018-01-11

    申请号：US15205243

    申请日：2016-07-08

    申请人： ARVOS, Inc.

    发明人： Kevin O'Boyle ,  Glenn D. Mattison

    IPC分类号： F23J15/02

    CPC分类号： F23J15/022 ,  B01D53/30 ,  B01D53/50 ,  B01D53/502 ,  F22B37/008 ,  F22B37/025 ,  F23J15/06 ,  F23J15/08 ,  F23J2215/20 ,  F23J2217/00 ,  F23L2900/15043 ,  Y02E20/348 ,  Y02E20/363

    摘要： A method for improving effectiveness of a steam generator system includes providing air to an air preheater in excess of that required for combustion of fuel and providing the air at a mass flow such that the air preheater has a cold end metal temperature that is no less than a water dew point temperature in the air preheater and such that the cold end metal temperature is less than a sulfuric acid dew point temperature. The method includes mitigating SO3 in the flue gas which is discharged directly from the air preheater to a particulate removal system and then directly into a flue gas desulfurization system. Flue gas reheat air is fed from the air preheater to heat the flue gas prior to entering a discharge stack to raise the temperature of the flue gas to mitigate visible plume exiting and to mitigate corrosion in the discharge stack.

    Method and device for controlling the supply of a reducing agent to an SCR system
    7.
    发明授权
    Method and device for controlling the supply of a reducing agent to an SCR system 有权
    用于控制向SCR系统供应还原剂的方法和装置

    公开(公告)号：US08268275B2

    公开(公告)日：2012-09-18

    申请号：US13060933

    申请日：2009-08-31

    申请人： Mikael Larsson

    发明人： Mikael Larsson

    IPC分类号： B01D53/56 ,  B01D53/79

    CPC分类号： B01D53/8631 ,  B01D53/8696 ,  B01D53/90 ,  B01D2251/2062 ,  B01D2251/2067 ,  F01N3/208 ,  F01N2610/02 ,  F01N2610/1453 ,  F22B37/008

    摘要： A selective catalytic reduction reactor (8), which comprises at least one catalyst layer (14), is operative for removing NOx from a flow of process gas of a process plant, such as a combustion plant or an incineration plant. A device for controlling the feeding of a reducing agent, such as urea or ammonia, to said at least one catalyst layer (14), which has an attack area (A) facing the flow (P) of process gas, comprises at least one supply nozzle (32) which is operative for supplying reducing agent in at least one supply area (34) which corresponds to a part of the attack area (A), and a moving device (36) which is operative for moving said supply area (34) over the attack area (A).

    摘要翻译： 包括至少一个催化剂层（14）的选择性催化还原反应器（8）可操作用于从处理设备（例如燃烧设备或焚化设备）的处理气体流中除去NOx。 用于控制向所述至少一个具有面对工艺气体流（P）的攻击区域（A）的至少一个催化剂层（14）供给诸如尿素或氨的还原剂的装置包括至少一个 供应喷嘴（32），其用于在对应于所述攻击区域（A）的一部分的至少一个供应区域（34）中供应还原剂;以及移动装置（36），其用于移动所述供应区域 34）在攻击区域（A）。

    Method of and Apparatus for Selective Catalytic NOx Reduction in a Power Boiler
    8.
    发明申请
    Method of and Apparatus for Selective Catalytic NOx Reduction in a Power Boiler 审中-公开
    电力锅炉中选择性催化还原NOx的方法和装置

    公开(公告)号：US20120160142A1

    公开(公告)日：2012-06-28

    申请号：US13182763

    申请日：2011-07-14

    申请人： David Greenhut ,  John Elston ,  Michael Mazzolla ,  Alfred Edwards

    发明人： David Greenhut ,  John Elston ,  Michael Mazzolla ,  Alfred Edwards

    IPC分类号： F23J15/02 ,  F23N3/00 ,  F23L15/02

    CPC分类号： F23J15/06 ,  B01D53/8631 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20707 ,  B01D2255/20738 ,  B01D2258/0283 ,  F01K3/247 ,  F01K13/00 ,  F22B1/1876 ,  F22B37/008 ,  F23J15/006 ,  F23J2215/10 ,  F23J2219/10 ,  F23L15/045 ,  Y02E20/12 ,  Y02E20/348

    摘要： A method of selective catalytic NOX reduction in a power boiler and a power boiler with selective catalytic NOX reduction. Fuel is combusted in a furnace of the boiler and a flue gas stream that includes NOX is generated. The flue gas stream is conducted from the furnace along a flue gas channel to a stack. The flue gas stream is cooled in a heat recovery area, including an economizer section, arranged in the flue gas channel. At least a portion of the NOX is reduced to N2 in an NOX catalyst arranged in the flue gas channel downstream of the economizer section. The flue gas is further cooled, and heated air is generated in a gas-to-air heater arranged in the flue gas channel downstream of the economizer section and upstream of the NOX catalyst. The gas-to-air heater may be a tubular air heater or a heat exchanger with a recirculating heat transfer fluid.

    摘要翻译： 在电力锅炉和选择性催化NO x还原的动力锅炉中选择性催化NO x还原的方法。 燃料在锅炉的炉中燃烧，产生包括NOX的烟道气。 烟道气从炉子沿着烟气通道传送到堆垛。 烟道气在热回收区域被冷却，该热回收区域包括布置在烟气通道中的节能器部分。 在排放在节能器部分下游的烟道气通道中的NO x催化剂中，至少一部分NO x还原成N2。 烟道气被进一步冷却，并且在排放在节能器部分下游的排气通道和NOX催化剂上游的气体 - 空气加热器中产生加热空气。 气体 - 空气加热器可以是管状空气加热器或具有循环传热流体的热交换器。

    POLLUTION ABATEMENT PROCESS FOR FOSSIL FUEL-FIRED BOILERS
    9.
    发明申请
    POLLUTION ABATEMENT PROCESS FOR FOSSIL FUEL-FIRED BOILERS 有权
    燃料燃烧锅炉的污染物排放过程

    公开(公告)号：US20110303133A1

    公开(公告)日：2011-12-15

    申请号：US13214169

    申请日：2011-08-20

    申请人： Pramodh Nijhawan

    发明人： Pramodh Nijhawan

    IPC分类号： F23J3/00 ,  F23J15/00

    CPC分类号： B01J20/20 ,  B01D53/10 ,  B01D53/60 ,  B01D53/83 ,  B01D2251/304 ,  B01D2251/402 ,  B01D2251/404 ,  B01D2253/102 ,  B01D2257/302 ,  B01D2257/602 ,  B01D2258/0283 ,  B01J20/041 ,  B01J20/043 ,  B01J20/046 ,  B01J20/28004 ,  B01J2220/42 ,  F22B37/008 ,  F23J7/00 ,  F23J15/02 ,  F23J2215/20 ,  F23J2219/60 ,  Y02A50/2344

    摘要： The present invention provides improved boiler assemblies (10) with enhanced pollution abatement properties through injection and recycling of particulate sorbent materials including sodium bicarbonate, trona, and mixtures thereof. The assemblies (10) include a boiler (12), economizer (14), air heater (15), and recirculation reactor (16).Fresh sorbent material is introduced via assembly (60) into the boiler assembly (10) at one or more injection locations, and serves to sorb NOX, SOX, and other pollutants in the flue gas. The flue gas and entrained sorbent material then pass through reactor (16) for separation of sorbent, which is then recycled for injection back into the assembly (10) upstream of reactor (16). In another aspect, the invention provides pollution abatement apparatus (110) and methods employing an upstream recirculation reactor (114), a supply of fresh sorbent (118), and a downstream collector (116). In the reactor (114), fresh sorbent reacts with incoming hot flue gas (112) to generate a reduced pollutant flue gas (128) and a solids fraction including reacted sorbent and pollutants, and unreacted sorbent. Recirculation apparatus (120) provided between the reactor outlet (126) and reactor (114) serves to generate a substantially constant mass or volume flow rate of the reactor solids fraction, which minimizes the use of fresh sorbent and maximizes the pollution abatement efficiency of the apparatus (110).

    摘要翻译： 本发明通过注入和再循环包括碳酸氢钠，天然碱及其混合物在内的颗粒状吸附剂材料提供改进的锅炉组件（10），其具有增强的减污性能。 组件（10）包括锅炉（12），节能器（14），空气加热器（15）和再循环反应器（16）。 新鲜的吸附剂材料通过组件（60）在一个或多个注射位置被引入到锅炉组件（10）中，并且用于吸收烟道气中的NOX，SOX和其它污染物。 烟气和夹带的吸附剂材料然后通过反应器（16）以分离吸附剂，然后将其再循环用于注入反应器（16）上游的组件（10）。 另一方面，本发明提供污染减排装置（110）和采用上游再循环反应器（114），新鲜吸附剂（118）的供应和下游收集器（116）的方法。 在反应器（114）中，新鲜吸附剂与进入的热烟气（112）反应以产生减少的污染物烟道气（128）和包含反应的吸附剂和污染物的固体馏分以及未反应的吸附剂。 设置在反应器出口（126）和反应器（114）之间的再循环装置（120）用于产生基本上恒定的反应堆固体部分的质量或体积流量，其使新鲜吸附剂的使用最小化并使污染物减少效率最大化 装置（110）。

    Boiler Apparatus
    10.
    发明申请
    Boiler Apparatus 有权
    锅炉设备

    公开(公告)号：US20110232286A1

    公开(公告)日：2011-09-29

    申请号：US13027381

    申请日：2011-02-15

    申请人： Nobuyoshi MISHIMA ,  Takashi Sugiura ,  Tetsuya Kosaka

    发明人： Nobuyoshi MISHIMA ,  Takashi Sugiura ,  Tetsuya Kosaka

    IPC分类号： F01K23/06 ,  F22B37/00

    CPC分类号： F01K13/00 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/343 ,  B01D2252/204 ,  B01D2258/0283 ,  F22B31/08 ,  F22B37/008 ,  F23J15/006 ,  F23J2215/50 ,  F23J2219/40 ,  Y02C10/06 ,  Y02E20/326

    摘要： A boiler apparatus is provided that generates a heat source capable of efficiently regenerating absorbing liquid while maintaining steam turbine efficiency to a maximum extent.The boiler apparatus includes: an economizer 54 preheating water serving as working fluid of a steam turbine system 500; an air preheater 69 installed downstream of the economizer 54; an evaporator 5 installed downstream of the economizer 54; an evaporator drum 6 using the water vapor from the evaporator 5 to generate saturated water vapor; a reboiler 20 using the saturated water vapor from the evaporator drum 6 to evaporate the absorbing liquid from a regeneration tower 23; a steam bypass pipe 15 connected to a steam pipe 14 through which the saturated water vapor from the evaporator drum 6 passes; a steam escape valve 16 installed in the steam bypass pipe 15; an exhaust gas bypass pipe 44 connected to an exhaust gas pipe 40 connecting the air preheater 69 with an absorption tower 26; and a butterfly valve 43 installed in the exhaust gas bypass pipe 44.

    摘要翻译： 提供一种锅炉装置，其产生能够在最大程度上保持蒸汽轮机效率的同时有效地再生吸收液体的热源。 锅炉装置包括：节约器54预热用作蒸汽轮机系统500的工作流体的水; 安装在节能器54下游的空气预热器69; 安装在节能器54下游的蒸发器5; 使用来自蒸发器5的水蒸汽产生饱和水蒸气的蒸发器鼓6; 使用来自蒸发器鼓6的饱和水蒸气从再生塔23蒸发吸收液体的再沸器20; 连接到蒸汽管14的蒸汽旁通管15，来自蒸发器鼓6的饱和水蒸气通过该蒸汽旁通管15通过; 安装在蒸汽旁通管15中的蒸汽排出阀16; 连接到将空气预热器69与吸收塔26连接的排气管40的排气旁通管44; 以及安装在废气旁通管44中的蝶阀43。