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    • 21. 发明授权
    • Method of thermal NOx reduction in catalytic combustion systems
    • 催化燃烧系统中热还原NOx的方法
    • US06718772B2
    • 2004-04-13
    • US10040208
    • 2001-10-26
    • Ralph A. Dalla BettaMarco A. VelascoDavid K. YeeSarento G. Nickolas
    • Ralph A. Dalla BettaMarco A. VelascoDavid K. YeeSarento G. Nickolas
    • F02C722
    • F23R3/40
    • Methods and apparatus, both devices and systems, for control of Zeldovich (thermal) NOx production in catalytic combustion systems during combustion of liquid or gaseous fuels in the post catalytic sections of gas turbines by reducing combustion residence time in the HC zone through control of the HC Wave, principally by adjusting the catalyst inlet temperature. As the fuel/air mixture inlet temperature (to the catalyst) is reduced, the HC Wave moves downstream (longer ignition delay time), shortens the residence time at high temperature, thereby reducing thermal NOx production. The countervailing increase in CO production by longer ignition delay times can be limited by selectively locating the HC Wave so that thermal NOx is reduced while power output and low CO production is maintained. NOx is reduced to on the order of
    • 用于控制在燃气涡轮机的后催化部分中燃烧液体或气体燃料期间的催化燃烧系统中的Zeldovich(热)NOx生成的方法和装置,通过控制HC区域中的燃烧停留时间来减少 HC Wave主要通过调节催化剂入口温度。 随着燃料/空气混合物入口温度(催化剂)减少,HC波向下游移动(点火延迟时间较长),缩短了高温下的停留时间,从而降低了NOx的产生。 通过选择性地定位HC波,可以限制由较长的点火延迟时间产生的CO生产的反补贴增加,使得在输出功率和低CO生产时保持热NOx。 当CO保持在<100ppm,典型地<50ppm,优选<5-10PPM时,NOx降低到大约<3ppm,优选<2ppm。
    • 22. 发明授权
    • Support structure for a catalyst in a combustion reaction chamber
    • 燃烧反应室中催化剂的支撑结构
    • US6116014A
    • 2000-09-12
    • US462639
    • 1995-06-05
    • Ralph A. Dalla BettaJames C. SchlatterMartin Bernard CutroneKenneth Winston Beebe
    • Ralph A. Dalla BettaJames C. SchlatterMartin Bernard CutroneKenneth Winston Beebe
    • F23C13/00F23R3/40F02C3/00
    • F23C13/00F23R3/40F23D2203/104F23D2203/106F23D2203/107
    • A support structure for securing a catalyst structure comprising a multiplicity of longitudinally disposed channels for passage of a flowing gas mixture within a reactor, said support structure being comprised of a monolithic open celled or honeycomb-like structure formed by thin strips or ribs of high temperature resistant metal or ceramic which abuts against one end of the catalyst structure, and extends in a direction perpendicular to the longitudinal axis of the catalyst structure to essentially cover an end face (at either the inlet end or outlet end or both) of the catalyst structure with the support structure being secured on its periphery to the reactor wall. The strips or ribs making up the support structure are bonded together to form a unitary structure having cellular openings at least as large as the catalyst structure channel openings. The cellular openings in the support structure are also positioned to be in fluid communication with the channels of the catalyst structure thus affording essentially unaltered gas flow from the catalyst structure through the support structure.
    • 一种用于固定催化剂结构的支撑结构,其包括多个纵向设置的通道,用于使反应器内的流动气体混合物通过,所述支撑结构包括由高温的薄带或肋形成的整体开式或蜂窝状结构 抵抗催化剂结构的一端的电阻金属或陶瓷,并且沿与催化剂结构的纵向轴线垂直的方向延伸,以基本上覆盖催化剂结构的端面(入口端或出口端或两端) 其支撑结构在其周边固定到反应器壁上。 构成支撑结构的条带或肋条结合在一起,以形成具有至少与催化剂结构通道开口一样大的泡孔的整体结构。 支撑结构中的细胞开口还被定位成与催化剂结构的通道流体连通,从而从催化剂结构通过支撑结构提供基本上不变的气体流。
    • 28. 发明授权
    • Process and apparatus for control of NOx in catalytic combustion systems
    • 用于控制催化燃烧系统中NOx的方法和装置
    • US06595003B2
    • 2003-07-22
    • US09944094
    • 2001-08-31
    • Ralph A. Dalla BettaSarento G. NickolasTimothy J. CaronJon G. McCartyMark J. SpencerRobert A. Corr, II
    • Ralph A. Dalla BettaSarento G. NickolasTimothy J. CaronJon G. McCartyMark J. SpencerRobert A. Corr, II
    • F02C700
    • F23C13/00F01K21/047F23D14/68F23L7/002F23L2900/07008F23L2900/07009F23R3/40
    • Methods and apparatus for control of NOx in catalytic combustion systems, and more particularly to control of thermal or/and prompt NOx produced during combustion of liquid or gaseous fuels in the combustor sections of catalytic combustor-type gas turbines, by controlled injection of water in liquid or vapor form at selected locations, orientations, amounts, rates, temperatures, phases, forms and manners in the compressor and combustor sections of gas turbines. The ratio of thermal NOx ppm reduction to water addition, in weight %, is on the order of 4-20, with % NOx reduction on the order of up to about 50-80% and NOx of below 2 ppm. Liquid water, steam or superheated steam can be used to reduce NOx in combustion systems operating at reaction zone temperatures above 900° C., preferably 1400° C. to 1700° C. The amount of water added is sufficient to provide a concentration of water in the range of from about 0.1% to about 20% by weight of the total air and fuel mixture flowing into the post catalyst reaction zone. Water is introduced simultaneously or sequentially in a plurality of locations, at selected rates, amounts, temperatures, forms, and purity, preferably in accord with a suitable control algorithm.
    • 用于控制催化燃烧系统中的NOx的方法和装置,更具体地说,涉及在催化燃烧式燃气轮机的燃烧器部分中的液体或气体燃料的燃烧期间产生的热或/和及时的NOx的控制, 在燃气轮机的压缩机和燃烧器部分中的选定位置,取向,量,速率,温度,相位,形式和方式下形成液体或蒸气。 热NOx ppm减少与水添加量的比例(重量%)约为4-20,其中NOx降低约高达约50-80%,NOx低于2ppm。 液态水,蒸汽或过热蒸汽可用于在高于900℃,优选1400℃至1700℃的反应区温度下操作的燃烧系统中的NOx减少。加入的水量足以提供水的浓度 在流入后催化剂反应区的总空气和燃料混合物的约0.1重量%至约20重量%的范围内。 优选地根据合适的控制算法,水以选定的速率,量,温度,形式和纯度同时或顺序地引入多个位置。
    • 30. 发明授权
    • Self-contained system for controlling gaseous emissions from dilute
organic sources and a process for using that system
    • 用于控制来自稀有机源的气体排放的独立系统和使用该系统的过程
    • US5308457A
    • 1994-05-03
    • US681869
    • 1991-04-05
    • Ralph A. Dalla BettaJames C. SchlatterDavid R. LaneDiana O. Durieux
    • Ralph A. Dalla BettaJames C. SchlatterDavid R. LaneDiana O. Durieux
    • B01D53/04B01D53/86C25F5/00
    • B01D53/0454B01D53/8668
    • This invention is a device and a process for controlling the emission of volatile organic components. The invention is useful on gaseous or vapor-containing streams containing a minor amount of organic material, particularly on fairly dilute streams or those containing only a few parts per million of the organic material. The device is useful in adsorbing organics as might be found emanating from paint spray booths, restaurants, print shops, dry cleaners, furniture manufacturers, and bakeries.The device may be two-stage including an adsorber and a catalytic oxidation reactor or may be of such a configuration that the same bed is used both as the adsorber and catalytic oxidation reactor. In the former configuration, a first stage contains an electrically conductive adsorbent bed, potentially comprising an adsorbent placed on a conductive support of fibers, foil, or other structure. The adsorbent removes the organic from the gaseous stream as that stream passes through. When the adsorbent is loaded with volatile organic, a voltage is applied to the conductive support and the adsorbed organic material is desorbed. The stream containing the desorbed organic is passed through a catalyst bed where a catalyst (which may also be on a conductive support) oxidizes the volatile organic to a harmless material which may (perhaps after other treatment) be emitted to the atmosphere.
    • 本发明是用于控制挥发性有机组分的排放的装置和方法。 本发明可用于含有少量有机材料的气态或含蒸汽流,特别是在相当稀释的物流上或仅含有少量百万分之有机材料的物流中。 该装置可用于吸附有机物,如从喷漆室,餐馆,印刷厂,干洗店,家具制造商和面包店那里可能发现的。 该装置可以是包括吸附器和催化氧化反应器的两级,或者可以具有这样的结构:使用同一床作为吸附剂和催化氧化反应器。 在前一种构造中,第一阶段包含导电吸附剂床,潜在地包括放置在纤维,箔或其它结构的导电载体上的吸附剂。 该吸附剂从气流通过时从气流中除去有机物。 当吸附剂装载有挥发性有机物时,向导电载体施加电压,吸附的有机材料被解吸。 含有解吸有机物质的物流通过催化剂床,其中催化剂(其也可以在导电载体上)将挥发性有机物氧化成无害材料,其可能(可能在其它处理之后)被排放到大气中。