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公开(公告)号：US07943097B2
公开(公告)日：2011-05-17
申请号：US12150943
申请日：2008-04-30
申请人： Stephen J. Golden , Svetlana Iretskaya , Rajashekharam V. Malyala , Guang Yuan , Rachelle Justice , Yul Kwan , Robert Bono , Ronald Roberts , Alec Miller
发明人： Stephen J. Golden , Svetlana Iretskaya , Rajashekharam V. Malyala , Guang Yuan , Rachelle Justice , Yul Kwan , Robert Bono , Ronald Roberts , Alec Miller
CPC分类号： B01J37/0246 , B01D53/8628 , B01D2255/206 , B01D2255/2065 , B01D2255/2073 , B01D2255/20761 , B01D2255/407 , B01D2255/504 , B01D2255/908 , B01J23/002 , B01J23/10 , B01J29/48 , B01J37/0242 , B01J2523/00 , F23J2219/10 , B01J2523/17 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/72
摘要： A zeolite based SCR catalyst for NOx reduction using a reducing agent for treating exhaust streams from industrial and commercial boilers is provided. The reactor system has a zeolite based catalyst arranged in catalyst cassettes in a modular fashion where the reactor containing the zeolite based SCR catalyst cassettes is placed in a perpendicular direction to the exhaust exiting the industrial and/or commercial boiler. The catalyst selectively reduces nitrogen oxides to nitrogen with a reducing agent at low to medium temperatures. The reactor results in high NOx conversions and very low ammonia slip and is active for a wide range of boiler firing conditions. Boilers with low NOx and/or ultra low NOx burners can be replaced with a standard conventional burner for overall emissions reduction performance, efficiency improvements and energy savings. Boilers with low NOx and ultra low NOx burners can also be fitted with this zeolite based SCR catalyst reactor for additional NOx reductions and energy savings.
摘要翻译： 提供了一种用于NOx还原的沸石型SCR催化剂，其使用用于处理来自工业和商业锅炉的废气流的还原剂。 反应器系统具有以模块化方式布置在催化剂盒中的基于沸石的催化剂，其中含有基于沸石的SCR催化剂盒的反应器与离开工业和/或商业锅炉的排气垂直的方向放置。 催化剂在低至中等温度下用还原剂选择性地将氮氧化物还原成氮。 反应器导致高NOx转化率和非常低的氨滑移，并且对于广泛的锅炉点火条件是有效的。 具有低NOx和/或超低NOx燃烧器的锅炉可以用标准的常规燃烧器代替，以实现总体减排性能，效率提高和节能。 具有低NOx和超低NOx燃烧器的锅炉还可以配备这种基于沸石的SCR催化剂反应器，用于额外的NOx减少和节能。
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2.发明申请公开(公告)号：US20090274601A1
公开(公告)日：2009-11-05
申请号：US12150940
申请日：2008-04-30
CPC分类号： B01D53/8625 , B01D2251/2062
摘要： The present invention is a method for selective reduction of nitrogen oxides in a gas stream with ammonia wherein the ammonia is vaporized prior to contacting it with the carrying fluid. The present invention also comprises a reducing agent dispersion system for use in substantially uniformly mixing a reducing agent with nitrogen oxides in a flue gas stream comprising a header and a plurality of lances. Further, the present invention comprises a novel reactor design for use in selective reduction of nitrogen oxides in a gas stream.
摘要翻译： 本发明是一种用氨选择性还原氮气中的氮气的方法，其中氨在与载体流体接触之前蒸发。 本发明还包括还原剂分散系统，用于在包括集管和多个喷枪的烟道气流中基本均匀地将还原剂与氮氧化物混合。 此外，本发明包括用于选择性还原气流中的氮氧化物的新型反应器设计。
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公开(公告)号：US20080279741A1
公开(公告)日：2008-11-13
申请号：US12150943
申请日：2008-04-30
申请人： Stephen J. Golden , Svetlana Iretskaya , Rajashekharam V. Malyala , Guang Yuan , Rachelle Justice , Yul Kwan , Robert Bono , Ronald Roberts , Alec Miller
发明人： Stephen J. Golden , Svetlana Iretskaya , Rajashekharam V. Malyala , Guang Yuan , Rachelle Justice , Yul Kwan , Robert Bono , Ronald Roberts , Alec Miller
CPC分类号： B01J37/0246 , B01D53/8628 , B01D2255/206 , B01D2255/2065 , B01D2255/2073 , B01D2255/20761 , B01D2255/407 , B01D2255/504 , B01D2255/908 , B01J23/002 , B01J23/10 , B01J29/48 , B01J37/0242 , B01J2523/00 , F23J2219/10 , B01J2523/17 , B01J2523/3706 , B01J2523/3712 , B01J2523/48 , B01J2523/72
摘要： A zeolite based SCR catalyst for NOx reduction using a reducing agent for treating exhaust streams from industrial and commercial boilers is provided. The reactor system has a zeolite based catalyst arranged in catalyst cassettes in a modular fashion where the reactor containing the zeolite based SCR catalyst cassettes is placed in a perpendicular direction to the exhaust exiting the industrial and/or commercial boiler. The catalyst selectively reduces nitrogen oxides to nitrogen with a reducing agent at low to medium temperatures. The reactor results in high NOx conversions and very low ammonia slip and is active for a wide range of boiler firing conditions. Boilers with low NOx and/or ultra low NOx burners can be replaced with a standard conventional burner for overall emissions reduction performance, efficiency improvements and energy savings. Boilers with low NOx and ultra low NOx burners can also be fitted with this zeolite based SCR catalyst reactor for additional NOx reductions and energy savings.
摘要翻译： 提供了一种用于NOx还原的沸石型SCR催化剂，其使用用于处理来自工业和商业锅炉的废气流的还原剂。 反应器系统具有以模块化方式布置在催化剂盒中的基于沸石的催化剂，其中含有基于沸石的SCR催化剂盒的反应器与离开工业和/或商业锅炉的排气垂直的方向放置。 催化剂在低至中等温度下用还原剂选择性地将氮氧化物还原成氮。 反应器导致高NOx转化率和非常低的氨滑移，并且对于广泛的锅炉点火条件是有效的。 具有低NOx和/或超低NOx燃烧器的锅炉可以用标准的常规燃烧器代替，以实现总体减排性能，效率提高和节能。 具有低NOx和超低NOx燃烧器的锅炉还可以配备这种基于沸石的SCR催化剂反应器，用于额外的NOx减少和节能。
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4.发明申请公开(公告)号：US20120183447A1
公开(公告)日：2012-07-19
申请号：US13209700
申请日：2011-08-15
IPC分类号： B01D53/56
CPC分类号： B01D53/8625 , B01D2251/2062
摘要： The present invention is a method for selective reduction of nitrogen oxides in a gas stream with ammonia wherein the ammonia is vaporized prior to contacting it with the carrying fluid. The present invention also comprises a reducing agent dispersion system for use in substantially uniformly mixing a reducing agent with nitrogen oxides in a flue gas stream comprising a header and a plurality of lances. Further, the present invention comprises a novel reactor design for use in selective reduction of nitrogen oxides in a gas stream.
摘要翻译： 本发明是一种用氨选择性还原氮气中的氮气的方法，其中氨在与载体流体接触之前蒸发。 本发明还包括还原剂分散系统，用于在包括集管和多个喷枪的烟道气流中基本均匀地将还原剂与氮氧化物混合。 此外，本发明包括用于选择性还原气流中的氮氧化物的新型反应器设计。
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公开(公告)号：US20080317652A1
公开(公告)日：2008-12-25
申请号：US12150939
申请日：2008-04-30
IPC分类号： B01D53/56
CPC分类号： B01D53/8625 , B01D53/8656 , B01D53/90 , B01D2251/2062 , B01D2251/2067 , B01D2251/208 , B01D2251/21 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01J37/0009 , B01J37/0215 , B01J37/0225 , F22B37/008 , F23J7/00 , F23J15/003 , F23J2215/10 , F23J2215/40 , F23J2219/10 , Y02C20/10
摘要： This invention is an emission control system wherein the boiler hosts a reactor which contains one or more catalysts for the purpose of reducing NOx and/or CO in the emissions. The reactor containing the NOx/CO catalysts may be placed at a place where the temperature is in the range of 300-1000° F. The hot flue gas can be diverted using control dampers and blended with colder flue gas inside the boiler to achieve the desired flue gas temperature for the selected catalyst. NOx is removed by the SCR catalyst inside the boiler upon injecting a suitable reducing agent (e.g. ammonia, or hydrocarbons). The CO and NOx catalysts may be used in any order. The emission control system is an integral part of the boiler, and the existing capabilities of the boiler to recover the heat from flue gas, after the catalyst layers, is utilized such that the overall boiler efficiency remains high.
摘要翻译： 本发明是一种排放控制系统，其中锅炉承载含有一种或多种催化剂的反应器，用于减少排放物中的NOx和/或CO。 包含NOx / CO催化剂的反应器可以放置在温度在300-1000°F范围内的地方。热烟道气可以使用控制阻尼器转向并与锅炉内较冷的烟气混合以实现 所选催化剂的所需烟道气温度。 在注入合适的还原剂（例如氨或碳氢化合物）之后，通过锅炉内的SCR催化剂去除NOx。 CO和NOx催化剂可以以任何顺序使用。 排放控制系统是锅炉的组成部分，利用锅炉在催化剂层之后回收烟气中的热量的现有能力，使整体锅炉效率保持较高。
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6.发明授权公开(公告)号：US08220274B2
公开(公告)日：2012-07-17
申请号：US12214541
申请日：2008-06-19
IPC分类号： F02C6/00
CPC分类号： F23J15/003 , B01D53/343 , B01D53/8646 , B01D2251/2062 , F22B1/1815 , F22B1/1861 , F22B37/008 , F23J15/06 , F23J2215/40 , F23J2219/10 , Y02E20/16 , Y02E20/363
摘要： A system and method of maintaining an optimal temperature range for a catalyst section in a HRSG comprising placing a portion of the exhaust stream in a heat exchanger and superheater, diverting a second portion around the heat exchanger and superheater, combining the two portions and contacting the two portions with a catalyst section. Alternatively, a system of heat exchangers are employed to address the fluctuating exhaust temperature caused by the intermittent use of the duct burners.
摘要翻译： 一种维持HRSG中的催化剂部分的最佳温度范围的系统和方法，包括将一部分排气流放置在热交换器和过热器中，将第二部分转向热交换器和过热器，将两部分组合并将 两部分具有催化剂部分。 或者，使用热交换器的系统来解决由间歇地使用管道燃烧器引起的波动的排气温度。
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7.发明申请公开(公告)号：US20090282803A1
公开(公告)日：2009-11-19
申请号：US12214541
申请日：2008-06-19
CPC分类号： F23J15/003 , B01D53/343 , B01D53/8646 , B01D2251/2062 , F22B1/1815 , F22B1/1861 , F22B37/008 , F23J15/06 , F23J2215/40 , F23J2219/10 , Y02E20/16 , Y02E20/363
摘要： A system and method of maintaining an optimal temperature range for a catalyst section in a HRSG comprising placing a portion of the exhaust stream in a heat exchanger and superheater, diverting a second portion around the heat exchanger and superheater, combining the two portions and contacting the two portions with a catalyst section. Alternatively, a system of heat exchangers are employed to address the fluctuating exhaust temperature caused by the intermittent use of the duct burners.
摘要翻译： 一种维持HRSG中的催化剂部分的最佳温度范围的系统和方法，包括将一部分排气流放置在热交换器和过热器中，将第二部分转向热交换器和过热器，将两部分组合并将 两部分具有催化剂部分。 或者，使用热交换器的系统来解决由间歇地使用管道燃烧器引起的波动的排气温度。
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8.发明授权Catalyst and method for reducing nitrogen oxides in exhaust streams with hydrocarbons or alcohols 有权用烃或醇还原废气流中的氮氧化物的催化剂和方法公开(公告)号：US08580216B2
公开(公告)日：2013-11-12
申请号：US11363301
申请日：2006-02-24
IPC分类号： B01D53/56
CPC分类号： B01D53/9418 , B01D53/8625 , B01D53/8628 , B01D2251/208 , B01D2251/21 , B01D2255/104 , B01D2255/502 , B01D2255/504 , B01D2255/908 , B01J21/04 , B01J23/50 , B01J23/66 , B01J23/83 , B01J23/89 , B01J23/894 , B01J35/0006 , B01J35/04 , B01J37/0215 , B01J37/0234 , B01J37/0242 , B01J37/0246
摘要： A catalyst system and a method for reducing nitrogen oxides in an exhaust gas by reduction with a hydrocarbon or oxygen-containing organic compound reducing agent are provided. The catalyst system contains a silver catalyst and a modifier catalyst, where the modifier catalyst contains a modifier oxide, where the modifier oxide is selected from the group consisting of iron oxide, cerium oxide, copper oxide, manganese oxide, chromium oxide, a lanthanide oxide, an actinide oxide, molybdenum oxide, tin oxide, indium oxide, rhenium oxide, tantalum oxide, osmium oxide, barium oxide, calcium oxide, strontium oxide, potassium oxide, vanadium oxide, nickel oxide, tungsten oxide, and mixtures thereof. The modifier oxide is supported on an inorganic oxide support or supports, where at least one of the inorganic oxide supports is an acidic support. The catalyst system of the silver catalyst and the modifier catalyst provides higher NOx conversion than either the silver catalyst or the modifier catalyst alone.
摘要翻译： 提供了一种催化剂体系和通过用含烃或含氧有机化合物还原剂还原来还原废气中的氮氧化物的方法。 催化剂体系含有银催化剂和改性剂催化剂，其中改性剂催化剂含有改性剂氧化物，其中改性剂氧化物选自氧化铁，氧化铈，氧化铜，氧化锰，氧化铬，镧系元素氧化物 ，锕系氧化物，氧化钼，氧化锡，氧化铟，氧化铼，氧化钽，氧化锇，氧化钡，氧化钙，氧化锶，氧化钾，氧化钒，氧化镍，氧化钨及其混合物。 改性氧化物负载在无机氧化物载体或载体上，其中至少一种无机氧化物载体是酸性载体。 银催化剂和改性剂催化剂催化剂体系比单独的银催化剂或改性剂催化剂提供更高的NOx转化率。
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公开(公告)号：US20100316547A1
公开(公告)日：2010-12-16
申请号：US12784140
申请日：2010-05-20
申请人： Rachelle Justice , Rajashekharam V. Malyala , Svetlana Iretskaya , Dylan Trandal , Dien To , Jason Pless , Stephen Golden , Jiho Yoo
发明人： Rachelle Justice , Rajashekharam V. Malyala , Svetlana Iretskaya , Dylan Trandal , Dien To , Jason Pless , Stephen Golden , Jiho Yoo
IPC分类号： B01D53/62 , B01J23/14 , B01J23/44 , B01J23/745 , B01J23/755 , B01J23/24 , B01J23/75 , B01J23/72 , B01J29/04 , B01J29/40 , B01J29/18 , B01J29/08 , B01J21/06 , B01J27/224 , B01D50/00
CPC分类号： B01J23/14 , B01D53/944 , B01D2255/1021 , B01D2255/1023 , B01D2255/206 , B01D2255/20707 , B01D2255/20715 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , B01D2258/012 , B01J21/063 , B01J21/066 , B01J23/002 , B01J23/005 , B01J23/626 , B01J23/83 , B01J23/835 , B01J23/8892 , B01J29/061 , B01J29/072 , B01J29/46 , B01J37/0246 , B01J2523/00 , F01N3/035 , F01N3/103 , F01N2370/02 , F01N2370/04 , B01J2523/17 , B01J2523/3712 , B01J2523/3718 , B01J2523/3725 , B01J2523/48 , B01J2523/43 , B01J2523/47
摘要： Embodiments of the present disclosure include a catalyst for the conversion of CO and/or hydrocarbons in an exhaust stream including a Sn compound selected from the group consisting of a binary composition comprising Sn and Ti, a ternary composition comprising Sn, Ti and Zr, and mixtures of any thereof. In those embodiments, the binary composition may include Sn(X)Ti(y)O2, wherein x+y=1, 0.85>y>0. In other embodiments of the present disclosure, the Sn compound includes a ternary composition including Sn(a)Ti(b)Zr(c)O2, wherein a is 0.25, b is 0.25 and c is 0.5. Certain embodiments of this disclosure include a method for the conversion of CO in an exhaust stream, including contacting an exhaust stream containing CO with the catalyst described above containing a Sn compound. In other embodiments, the exhaust stream includes hydrocarbons.
摘要翻译： 本公开的实施方案包括用于在包含Sn化合物的排气流中转化CO和/或烃的催化剂，所述Sn化合物选自包含Sn和Ti的二元组合物，包含Sn，Ti和Zr的三元组合物，以及 其中任何一种的混合物。 在这些实施方案中，二元组合物可以包括Sn（X）Ti（y）O 2，其中x + y = 1,0 0.85> y> 0。 在本公开的其它实施方案中，Sn化合物包括包含Sn（a）Ti（b）Zr（c）O 2的三元组合物，其中a为0.25，b为0.25，c为0.5。 本公开的某些实施方案包括用于在排气流中转化CO的方法，包括使含有CO的废气流与含有Sn化合物的上述催化剂接触。 在其它实施方案中，废气流包括烃。
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