-
公开(公告)号：US07121097B2
公开(公告)日：2006-10-17
申请号：US09942976
申请日：2001-08-29
CPC分类号： F23C13/00 , F23C2900/13002 , F23D2208/10 , F23L15/04 , F23R3/40 , Y02E20/348
摘要： A control system for a catalytic combustion system on a gas turbine includes a flame preburner, a fuel injector positioned downstream of the preburner and a catalyst positioned downstream of the fuel injector. In such systems, a portion of the fuel combusts within the catalyst itself and the remainder of the fuel combusts in a homogeneous combustion process wave downstream of the catalyst. A sensor in communication with the control system monitors the homogeneous combustion process wave and adjusts the gas temperature at the catalyst inlet to a preferred value based on a predetermined schedule that relates the catalyst inlet gas temperature to operating fundamentals such as adiabatic combustion temperature or the gas turbine's exhaust gas temperature.
摘要翻译： 用于燃气轮机上的催化燃烧系统的控制系统包括火焰预燃器，位于预燃机下游的燃料喷射器和位于燃料喷射器下游的催化剂。 在这种系统中，一部分燃料在催化剂本身内燃烧，其余的燃料在均匀的燃烧过程中在催化剂下游燃烧。 与控制系统通信的传感器监测均匀的燃烧过程波，并且基于将催化剂入口气体温度与诸如绝热燃烧温度或气体的操作基准相关联的预定时间表将催化剂入口处的气体温度调节到优选值 涡轮机的废气温度。
-
公开(公告)号：US06718772B2
公开(公告)日：2004-04-13
申请号：US10040208
申请日：2001-10-26
IPC分类号： F02C722
CPC分类号： F23R3/40
摘要： 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
摘要翻译： 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。
-
公开(公告)号：US5250489A
公开(公告)日：1993-10-05
申请号：US617974
申请日：1990-11-26
申请人： Ralph A. Dalla Betta , Fabio H. Ribeiro , Toru Shoji , Kazunori Tsurumi , Nobuyasu Ezawa , Sarento G. Nickolas
发明人： Ralph A. Dalla Betta , Fabio H. Ribeiro , Toru Shoji , Kazunori Tsurumi , Nobuyasu Ezawa , Sarento G. Nickolas
IPC分类号： B01J21/04 , B01D53/86 , B01J21/06 , B01J21/08 , B01J23/42 , B01J23/44 , B01J35/04 , F01N3/28 , B01J23/40 , B01J23/46
CPC分类号： B01J21/066 , B01D53/8628 , B01J23/42 , B01J23/44 , B01J35/04 , F01N3/281 , B01J21/063 , F01N2330/02 , F01N2330/32
摘要： This invention is a catalyst structure having integral heat exchange surfaces and a method for using the structure in highly exothermic processes, such as a combustion process, while maintaining the catalyst and the structure wall at a temperature below the adiabatic combustion temperature.
摘要翻译： 本发明是一种具有整体热交换面的催化剂结构以及在高温放热过程如燃烧过程中使用该结构的方法，同时将催化剂和结构壁保持在绝热燃烧温度以下的温度。
-
公开(公告)号：US5183401A
公开(公告)日：1993-02-02
申请号：US618301
申请日：1990-11-26
申请人： Ralph A. Dalla Betta , Nobuyasu Ezawa , Kazunori Tsurumi , James C. Schlatter , Sarento G. Nickolas
发明人： Ralph A. Dalla Betta , Nobuyasu Ezawa , Kazunori Tsurumi , James C. Schlatter , Sarento G. Nickolas
CPC分类号： F23C13/00 , F23C6/045 , F23C2900/13002
摘要： This invention is a comparatively high pressure combustion process having a two stages in which a fuel is stepwise combusted using specific catalysts and catalytic structures and, optionally, having a final homogeneous combustion zone. The choice of catalysts and the use of specific structures, including those employing integral heat exchange, results in an overall catalyst structure which is stable due to its comparatively low temperature. The product combustion gas is at a temperature suitable for use in a gas turbine, furnace, boiler, or the like, but has low NO.sub.x content.
摘要翻译： 本发明是具有两个阶段的比较高压的燃烧过程，其中使用特定催化剂和催化结构逐步燃烧燃料，并且任选地具有最终均匀的燃烧区。 催化剂的选择和特定结构的使用，包括采用整体热交换的结构，导致总体催化剂结构由于其相对较低的温度而稳定。 产品燃烧气体处于适用于燃气轮机，炉，锅炉等的温度，但NOx含量低。
-
5.发明授权公开(公告)号：US06595003B2
公开(公告)日：2003-07-22
申请号：US09944094
申请日：2001-08-31
申请人： Ralph A. Dalla Betta , Sarento G. Nickolas , Timothy J. Caron , Jon G. McCarty , Mark J. Spencer , Robert A. Corr, II
发明人： Ralph A. Dalla Betta , Sarento G. Nickolas , Timothy J. Caron , Jon G. McCarty , Mark J. Spencer , Robert A. Corr, II
IPC分类号： F02C700
CPC分类号： F23C13/00 , F01K21/047 , F23D14/68 , F23L7/002 , F23L2900/07008 , F23L2900/07009 , F23R3/40
摘要： 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.
摘要翻译： 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。
-
-
-
-
搜索结果
5 条记录 (耗时 0.021 秒)
