公开(公告)号：US4213944A

公开(公告)日：1980-07-22

申请号：US859176

申请日：1977-12-09

申请人： Shigeru Azuhata ,  Hidetoshi Akimoto ,  Hideo Kikuchi ,  Yukio Hishinuma ,  Ryoichiro Oshima ,  Yoshijiro Arikawa

发明人： Shigeru Azuhata ,  Hidetoshi Akimoto ,  Hideo Kikuchi ,  Yukio Hishinuma ,  Ryoichiro Oshima ,  Yoshijiro Arikawa

IPC分类号： B01D53/56 ,  B01D53/00

CPC分类号： B01D53/56

摘要： A hot gas containing nitrogen oxides is admixed with ammonia and hydrogen peroxide to reduce the nitrogen oxides to nitrogen and water. Reduction reaction of the nitrogen oxides by ammonia is considerably promoted in a temperature range of 400.degree. to 800.degree. C. by the addition of hydrogen peroxide, and also ammonia present in excess of the nitrogen oxides is decomposed thereby, eliminating an unreacted ammonia effluent.

摘要翻译： 含有氮氧化物的热气体与氨和过氧化氢混合以将氮氧化物还原成氮和水。 通过加入过氧化氢，在400〜800℃的温度范围内，氨的还原反应得到显着的促进，而且存在于过氧化氮中的氨也被分解，从而消除了未反应的氨流出物。

公开(公告)号：US4119702A

公开(公告)日：1978-10-10

申请号：US817745

申请日：1977-07-21

申请人： Shigeru Azuhata ,  Hideo Kikuchi ,  Hidetoshi Akimoto ,  Yukio Hishinuma ,  Yoshijiro Arikawa

发明人： Shigeru Azuhata ,  Hideo Kikuchi ,  Hidetoshi Akimoto ,  Yukio Hishinuma ,  Yoshijiro Arikawa

IPC分类号： B01D53/56 ,  C01B21/00

CPC分类号： B01D53/56

摘要： Nitrogen oxides in a combustion flue gas are removed by reduction in a gaseous phase at a low temperature in the absence of any catalyst by adding urea and an oxidizing agent for decomposition of urea, such as ozone, nitric acid, hydrogen peroxide, chlorine, chlorine dioxide, or oxy acids of chlorine or their salts. NO.sub.x removal can be carried out in a very simplified manner with high percent NO.sub.x removal.

摘要翻译： 在没有任何催化剂的情况下，通过添加尿素和用于尿素分解的氧化剂如臭氧，硝酸，过氧化氢，氯，氯等，在低温下通过还原气相来除去燃烧烟道气中的氮氧化物 二氧化物或氯的氧酸或其盐。 可以以非常简单的方式进行NOx去除，同时除去高的NOx。

公开(公告)号：US4653998A

公开(公告)日：1987-03-31

申请号：US694744

申请日：1985-01-25

申请人： Ken-ichi Sohma ,  Norio Arashi ,  Shigeru Azuhata ,  Kiyoshi Narato ,  Tooru Inada ,  Hironobu Kobayashi ,  Keizou Ohtsuka ,  Yukio Hishinuma

发明人： Ken-ichi Sohma ,  Norio Arashi ,  Shigeru Azuhata ,  Kiyoshi Narato ,  Tooru Inada ,  Hironobu Kobayashi ,  Keizou Ohtsuka ,  Yukio Hishinuma

IPC分类号： F23N5/00 ,  F23N5/08 ,  G01J1/42

CPC分类号： F23N5/082 ,  F23N5/006 ,  F23N2039/02 ,  Y02T50/677

摘要： A furnace system connected to a burner including a furnace for burning a fuel and air ejected from the burner into the furnace to produce a flame therein, and a combustion condition determining device for determining the conditions of combustion of the fuel in a zone of the flame extending along different strata thereof by collecting light in the flame at one point in the flame by moving such point. Signals outputted by the combustion condition determining device are utilized for monitoring or controlling the flame and controlling exhaust emission control devices for controlling exhaust emissions produced by the combustion of the fuel. Control of the conditions of combustion of the flame can be effected quickly with a high degree of precision by monitoring the flame.

摘要翻译： 一种连接到燃烧器的炉系统，包括用于燃烧燃料的炉和从燃烧器喷射到炉中以在其中产生火焰的燃烧空气;以及燃烧条件确定装置，用于确定燃料在火焰区域中的燃烧条件 通过移动这些点，在火焰的一个点处在火焰中收集光，沿不同的层延伸。 由燃烧条件确定装置输出的信号用于监视或控制火焰和控制废气排放控制装置，以控制由燃料燃烧产生的废气排放。 通过监视火焰可以高精度地快速实现对火焰燃烧条件的控制。

公开(公告)号：US4515094A

公开(公告)日：1985-05-07

申请号：US560179

申请日：1983-12-12

申请人： Shigeru Azuhata ,  Norio Arashi ,  Kiyoshi Narato ,  Tooru Inada ,  Kenichi Souma ,  Keizou Ohtsuka ,  Yukio Hishinuma ,  Tadahisa Masai

发明人： Shigeru Azuhata ,  Norio Arashi ,  Kiyoshi Narato ,  Tooru Inada ,  Kenichi Souma ,  Keizou Ohtsuka ,  Yukio Hishinuma ,  Tadahisa Masai

IPC分类号： F23C6/04 ,  F23C99/00 ,  F23D1/00 ,  F23D1/02 ,  F23K5/00

CPC分类号： F23D1/00 ,  F23C6/047 ,  F23D1/02 ,  F23C2201/20 ,  F23C2201/30 ,  F23C2201/301

摘要： There are the primary fuel nozzle for jetting the first coal in the fine powder form with an air ratio up to 1, and the secondary fuel nozzle for jetting the second coal in the fine powder form with an air ratio at least 1 from the outer circumferential portion of the primary fuel nozzle. Swirl means are located at the top of the secondary fuel nozzle for swirling the second coal.

摘要翻译： 主燃料喷嘴用于以空气比率高达1的细粉末形式喷射第一煤，而第二燃料喷嘴用于从第二燃料喷嘴的外圆周 主燃料喷嘴的一部分。 涡流装置位于二次燃料喷嘴的顶部，用于旋转第二个煤。

公开(公告)号：US5022849A

公开(公告)日：1991-06-11

申请号：US379926

申请日：1989-07-14

申请人： Yasuo Yoshii ,  Shigeru Azuhata ,  Norio Arashi ,  Kenichi Sohma ,  Tooru Inada ,  Hideo Kikuchi ,  Masayuki Taniguchi ,  Kiyoshi Narato ,  Hironobu Kobayashi ,  Tadayoshi Murakami ,  Michio Kuroda ,  Yoji Ishibashi ,  Stephen M. Masutani

发明人： Yasuo Yoshii ,  Shigeru Azuhata ,  Norio Arashi ,  Kenichi Sohma ,  Tooru Inada ,  Hideo Kikuchi ,  Masayuki Taniguchi ,  Kiyoshi Narato ,  Hironobu Kobayashi ,  Tadayoshi Murakami ,  Michio Kuroda ,  Yoji Ishibashi ,  Stephen M. Masutani

IPC分类号： F23C5/00 ,  F23C6/04 ,  F23C7/00 ,  F23C13/00 ,  F23D14/02

CPC分类号： F23C13/00 ,  F23C5/00 ,  F23C6/047 ,  F23C7/00 ,  F23D14/02 ,  F23C2900/05081

摘要： A low NOx burning method and apparatus wherein a low air ratio flame burned with an amount of air less than an amount of air in a theoretical air ratio required for burning fuel perfectly is formed, and combustibles discharged from the low air ratio flame are burned at a trailing stream of the low air ratio flame while supplying air. The low air ratio flame is a premixing flame burned by premixing the fuel and air, and combustion of the premixing flames is maintained in the vicinity of the premixing flame. In this way, the generation of the NOx during the burning can be greatly decreased, and the required apparatus can be small-sized.

摘要翻译： 形成低NOx燃烧方法和装置，其中形成低空燃比火焰燃烧的空气量少于燃烧燃料所需的理论空气比的空气量，并且从低空燃比火焰排出的可燃物燃烧在 在供应空气的同时，低空气比火焰的尾流。 低空气比火焰是通过预混合燃料和空气燃烧的预混合火焰，并且预混合火焰的燃烧保持在预混合火焰附近。 以这种方式，可以大大降低燃烧期间的NOx的产生，并且所需的装置可以小型化。

公开(公告)号：US5067419A

公开(公告)日：1991-11-26

申请号：US456561

申请日：1989-12-26

申请人： Hironobu Kobayashi ,  Shigeru Azuhata ,  Kiyoshi Narato ,  Kenichi Sohma ,  Yasuo Yoshii ,  Norio Arashi ,  Shigekazu Nishimoto ,  Isao Koyama ,  Tooru Inata ,  Hideo Kikuchi ,  Tadayoshi Murakami ,  Masayuki Taniguchi ,  Hiroshi Miyadera ,  Fumio Koda ,  Tatsuzou Enomoto ,  Kenshi Kobayashi

发明人： Hironobu Kobayashi ,  Shigeru Azuhata ,  Kiyoshi Narato ,  Kenichi Sohma ,  Yasuo Yoshii ,  Norio Arashi ,  Shigekazu Nishimoto ,  Isao Koyama ,  Tooru Inata ,  Hideo Kikuchi ,  Tadayoshi Murakami ,  Masayuki Taniguchi ,  Hiroshi Miyadera ,  Fumio Koda ,  Tatsuzou Enomoto ,  Kenshi Kobayashi

IPC分类号： F22B21/34 ,  F22B31/00 ,  F23D23/00

CPC分类号： F23D23/00 ,  F22B21/346 ,  F22B31/00

摘要： A low-NOx boiler comprises a burner for burning gaseous fuel, heat transfer pipes heating water by combustion heat of the burner to generate steam and having a passage through which water flows, a steam drum communicating with the heat transfer pipe and accumulating the steam from the heat transfer pipe, and an exhaust gas duct located in the furnace to exhaust combustion gas generated by combustion of gaseous fuel outside of the boiler. The boiler further comprises unburnt gas burner in the exhaust gas duct for burning unburnt content in the combustion gas flowing in the duct. The unburnt gas burner includes a nozzle for injecting premixture flow of fuel and combustion air and flame holding plate located near the downstream side of the outlet of the nozzle to interrupt the premixture flow to form a circulating flow on downstream side of the flame holding plate. As gaseous fuel and air are mixed in advance and a flame is formed, the flame length can be shortened. Furthermore, the flame holding plate enables to reduce NOx generated. Unburnt gas burner provided in the exhaust gas duct makes it possible to notably reduce the concentration of NOx discharged to the outside of the system.

公开(公告)号：US07294315B1

公开(公告)日：2007-11-13

申请号：US09936426

申请日：1999-06-09

申请人： Shuichi Kanno ,  Akio Honji ,  Hisao Yamashita ,  Shigeru Azuhata ,  Shin Tamata ,  Kazuyoshi Irie

发明人： Shuichi Kanno ,  Akio Honji ,  Hisao Yamashita ,  Shigeru Azuhata ,  Shin Tamata ,  Kazuyoshi Irie

IPC分类号： B01D53/34

CPC分类号： B01J23/34 ,  B01D53/8659 ,  B01J23/38 ,  B01J23/63 ,  B01J23/70 ,  Y02C20/10 ,  Y02C20/30

摘要： Fluorine compounds such as C2F6, CF4, CHF3, SF6 and NF3, are made in contact with a fluorine compound decomposition catalyst and a catalyst the decomposition oft least one of CO, SO2F2 and N2O in the presence of water or in the presence of water and oxygen. The catalyst the decomposition oft least one of CO, SO2F2 and N2O preferably contains at least one selected from Pd, Pt, Cu, Mn, Fe, Co, Rh, Ir and Au in the form of a metal or an oxide. According to the invention, the fluorine compound can be converted to HF, which is liable to be absorbed by water or an alkaline aqueous solution, and a substance, such as CO, SO2F2 and N2O, formed by decomposition of the fluorine compound can also be decomposed.

摘要翻译： 氟化合物如C 2 F 6，CF 4，CH 3，SF 6， SUB＆gt;和NF 3 3与氟化合物分解催化剂和催化剂接触，分解为CO，SO 2/2 / 在水的存在下或在水和氧的存在下，将其与N 2 O 2 O反应。 CO，SO 2 H 2 N 2和N 2 O 2中的至少一种的分解催化剂优选含有选自Pd，Pt， Cu，Mn，Fe，Co，Rh，Ir和Au。 根据本发明，氟化合物可以转化成易于被水或碱性水溶液吸收的HF，以及CO，SO 2 F 2等物质 由氟化合物分解形成的N和N 2 O也可以分解。

公开(公告)号：US06942841B2

公开(公告)日：2005-09-13

申请号：US10215045

申请日：2002-08-09

申请人： Shuichi Kanno ,  Toshiaki Arato ,  Shinzo Ikeda ,  Ken Yasuda ,  Hisao Yamashita ,  Shigeru Azuhata ,  Shin Tamata ,  Kazuyoshi Irie

发明人： Shuichi Kanno ,  Toshiaki Arato ,  Shinzo Ikeda ,  Ken Yasuda ,  Hisao Yamashita ,  Shigeru Azuhata ,  Shin Tamata ,  Kazuyoshi Irie

IPC分类号： A62D3/00 ,  A62D3/20 ,  A62D101/22 ,  A62D101/49 ,  B01D53/86 ,  B01D53/48 ,  B01D53/68

CPC分类号： A62D3/20 ,  A62D2101/22 ,  A62D2101/49 ,  B01D53/8659 ,  B01D53/8662 ,  B01D53/8671 ,  B01D2255/2092 ,  B01D2257/204 ,  B01D2258/0216 ,  C01B7/191 ,  Y02C20/30

摘要： A gas stream containing at least one fluorine compound selected from the group consisting of compounds of carbon and fluorine, compounds of carbon, hydrogen and fluorine, compounds of sulfur and fluorine, compounds of nitrogen and fluorine and compounds of carbon, hydrogen, oxygen and fluorine is contacted with a catalyst comprising at least one of alumina, titania, zirconia and silica, preferably a catalyst comprising alumina and at least one of nickel oxide, zinc oxide and titania in the presence of steam, thereby hydrolyzing the fluorine compound at a relatively low temperature, e.g. 200°-800° C., to convert the fluorine of the fluorine compound to hydrogen fluoride.

摘要翻译： 含有选自碳和氟的化合物，碳，氢和氟的化合物，硫和氟的化合物，氮和氟的化合物，碳，氢，氧和氟的化合物的至少一种氟化合物的气流 与包含氧化铝，二氧化钛，氧化锆和二氧化硅中的至少一种的催化剂接触，优选在蒸汽存在下包含氧化铝和氧化镍，氧化锌和二氧化钛中的至少一种的催化剂，从而以相对低的水解水解氟化合物 温度，例如 200°-800℃，将氟化合物的氟转化成氟化氢。

公开(公告)号：US20050089461A1

公开(公告)日：2005-04-28

申请号：US10987156

申请日：2004-11-15

申请人： Shuichi Kanno ,  Akio Honji ,  Hisao Yamashita ,  Shigeru Azuhata ,  Shin Tamata ,  Kazuyoshi Irie

发明人： Shuichi Kanno ,  Akio Honji ,  Hisao Yamashita ,  Shigeru Azuhata ,  Shin Tamata ,  Kazuyoshi Irie

IPC分类号： B01J23/40 ,  B01J23/63 ,  B01J23/652 ,  B01J23/66 ,  B01J23/70 ,  C01B7/19 ,  C07C17/38 ,  C01B7/00

CPC分类号： B01J23/63 ,  B01J23/40 ,  B01J23/6527 ,  B01J23/66 ,  B01J23/70 ,  C01B7/191

摘要： Fluorine compounds such as C2F6, CF4, CHF3, SF6 and NF3, are made in contact with a fluorine compound decomposition catalyst and a catalyst the decomposition oft least one of CO, SO2F2 and N2O in the presence of water or in the presence of water and oxygen. The catalyst the decomposition oft least one of CO, SO2F2 and N2O preferably contains at least one selected from Pd, Pt, Cu, Mn, Fe, Co, Rh, Ir and Au in the form of a metal or an oxide. According to the invention, the fluorine compound can be converted to HF, which is liable to be absorbed by water or an alkaline aqueous solution, and a substance, such as CO, SO2F2 and N2O, formed by decomposition of the fluorine compound can also be decomposed.

摘要翻译： 氟化合物如C 2 F 6，CF 4，CH 3，SF 6， SUB＆gt;和NF 3 3与氟化合物分解催化剂和催化剂接触，分解为CO，SO 2/2 / 在水的存在下或在水和氧的存在下，将其与N 2 O 2 O反应。 CO，SO 2 H 2 N 2和N 2 O 2中的至少一种的分解催化剂优选含有选自Pd，Pt， Cu，Mn，Fe，Co，Rh，Ir和Au。 根据本发明，氟化合物可以转化成易于被水或碱性水溶液吸收的HF，以及CO，SO 2 F 2等物质 由氟化合物分解形成的N和N 2 O也可以分解。

公开(公告)号：US06596247B1

公开(公告)日：2003-07-22

申请号：US09348272

申请日：1999-07-07

申请人： Hidehiro Iizuka ,  Ryouta Doi ,  Hiroshi Hanaoka ,  Toshio Ogawa ,  Osamu Kuroda ,  Hisao Yamashita ,  Shigeru Azuhata ,  Yuichi Kitahara ,  Norihiro Shinotsuka

发明人： Hidehiro Iizuka ,  Ryouta Doi ,  Hiroshi Hanaoka ,  Toshio Ogawa ,  Osamu Kuroda ,  Hisao Yamashita ,  Shigeru Azuhata ,  Yuichi Kitahara ,  Norihiro Shinotsuka

IPC分类号： B01D5356

CPC分类号： B01D53/9422 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/202 ,  B01D2255/2047 ,  B01D2255/2063 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01J23/58 ,  B01J23/63

摘要： A catalyst being formed of a porous supporter supporting alkali metals, Ti and noble metal, or further supporting at least one of rare earth metal and magnesium, being disposed in a flow passage of the internal combustion engine, and being used to purify NOx contained in the exaust gas. The above catalyst has excellent NOx resistance not only to the exaust gas burnt with the stoichiometric air-to-fuel ratio or rich condition, but to the exhaust gas burnt with the lean condition, and furthermore has a high resistivity to poisoning of SOx slightly contained in the fuel.

摘要翻译： 催化剂由支撑碱金属，Ti和贵金属的多孔支撑体形成，或进一步支撑稀土金属和镁中的至少一种，设置在内燃机的流路中，用于净化含有 大气。 上述催化剂不仅具有优良的耐NOx燃烧性能，而且具有化学计量空燃比或浓度较高的燃烧气体，而且对贫燃料燃烧的废气具有优异的耐NOx性，而且还具有高电阻率， 在燃料中。