METHOD AND APPARATUS FOR TEMPERATURE INCREASE OF EXHAUST OR PROCESS GASES WITH AN OXIDIZABLE SHARE
    41.
    发明申请
    METHOD AND APPARATUS FOR TEMPERATURE INCREASE OF EXHAUST OR PROCESS GASES WITH AN OXIDIZABLE SHARE 审中-公开
    使用可氧化分散体进行排气或加工气体温度升高的方法和装置

    公开(公告)号:US20120183448A1

    公开(公告)日:2012-07-19

    申请号:US13347185

    申请日:2012-01-10

    申请人: Rainer Maierhofer

    发明人: Rainer Maierhofer

    IPC分类号: B01D53/56 B01D53/62

    摘要: A method and a device for increasing the temperature of an exhaust gas or process gas with an oxidizable share, in particular a carbon monoxide-containing nitrogen oxide flue gas, before a catalytic flue gas denitrification is performed, wherein an exhaust gas or flue gas duct is in communication with at least one hot gas duct designed as a combustion chamber which hot gas duct is assigned with a combustion device, so that the oxidizable share, in particular the carbon monoxide share, of the exhaust gas or flue gas conducted through the hot gas duct is oxidized at least partially in particular to carbon dioxide.

    摘要翻译: 一种在进行催化烟气脱氮之前,用可氧化份额,特别是含一氧化碳的氮氧化物烟道气来提高废气或处理气体的温度的方法和装置,其中排气或废气管道 与设置为燃烧室的至少一个热气管道连通,该热气管道被分配有燃烧装置,使得通过热的导管的排气或烟道气的可氧化份额,特别是一氧化碳份额 气体管道至少部分地氧化成二氧化碳。

    Apparatus for removing of trace of toxic substance from exhaust gas and method of operating the same
    43.
    发明授权
    Apparatus for removing of trace of toxic substance from exhaust gas and method of operating the same 有权
    从废气中除去有毒物质痕迹的设备及其操作方法

    公开(公告)号:US08202482B2

    公开(公告)日:2012-06-19

    申请号:US12373817

    申请日:2006-07-26

    IPC分类号: B01D46/02

    摘要: An apparatus for removing of traces of toxic substances from exhaust gas, comprising, disposed in sequence from the upstream side in a flow channel of exhaust gas emitted from combustion equipment, a denitration unit including a denitration catalyst layer capable of removing nitrogen oxides from the exhaust gas and capable of oxidizing metallic mercury; an air preheater adapted for heat exchange between air for combustion in the combustion equipment and the exhaust gas; a dust removal unit having a bag filter containing a catalyst for metallic mercury oxidation; and a desulfurization unit for removing sulfur oxide from the exhaust gas. The bag filter may be disposed in advance of the desulfurization unit. Thus, there can be provided an apparatus for removing of traces of toxic substances from exhaust gas that is stable over a prolonged period of time and is highly reliable; and provided a method of operating the same.

    摘要翻译: 一种用于从废气中除去有毒物质痕迹的装置,包括从燃烧设备排出的排气流动通道中的上游侧依次设置的脱硝单元,该脱硝单元包括能够从排气中除去氮氧化物的脱硝催化剂层 气体和能够氧化金属汞; 空气预热器,其适于在燃烧设备中的燃烧空气和废气之间进行热交换; 除尘单元,其具有包含用于金属汞氧化的催化剂的袋式过滤器; 以及用于从废气中除去硫氧化物的脱硫单元。 袋式过滤器可以在脱硫单元之前设置。 因此,可以提供一种用于从长时间内稳定的排气中除去痕量有毒物质并且高可靠性的装置; 并提供了一种操作该方法的方法。

    Combined waste gas treatment of waste gas streams containing ammonia and nitrogen oxides in industrial plants
    46.
    发明授权
    Combined waste gas treatment of waste gas streams containing ammonia and nitrogen oxides in industrial plants 有权
    对工业厂房内含有氨和氮氧化物的废气流的综合废气处理

    公开(公告)号:US08147784B2

    公开(公告)日:2012-04-03

    申请号:US13257452

    申请日:2010-03-12

    IPC分类号: B01D53/56 B01D53/58

    摘要: Combined removal of both ammonia from an ammonia-containing waste gas and nitrogen oxides from a nitrogen oxide-containing waste gas in a combined ammonia/urea synthesis plant is accomplished by mixing the gases and employing one or both of selective non-catalytic reduction at a temperature of 850° C. to 1100° C. or selective catalytic reduction at a temperature of 150° C. to 550° C., in which the ammonia and the nitrogen oxides react with one another to give nitrogen and water, the ammonia-containing waste gas derived from a low-pressure and/or atmospheric absorber of the urea synthesis plant, and the nitrogen oxide-containing waste gas derived from a flue gas duct of a primary reformer of the ammonia synthesis plant, both the ammonia and the nitrogen oxides of the mixed waste gas flows being depleted simultaneously during the same process step.

    摘要翻译: 通过混合气体并采用一种或两种选择性催化还原方法,在氨合成装置中合并氨合成氨和氨氮废气中的氮氧化物, 温度为850℃至1100℃,或在150℃至550℃的温度下进行选择性催化还原,其中氨和氮氧化物彼此反应以产生氮和水, 来自尿素合成装置的低压和/或大气吸收剂的废气和来自氨合成装置的一次重整器的烟气管道的含氮氧化物的废气都是氨和氮 混合废气流的氧化物在同一工艺步骤中同时耗尽。

    MODEL BASED TEMPERING AIR CONTROL AND ENHANCEMENT OF EXHAUST FOR SELECT CATALYTIC REDUCTION
    48.
    发明申请
    MODEL BASED TEMPERING AIR CONTROL AND ENHANCEMENT OF EXHAUST FOR SELECT CATALYTIC REDUCTION 有权
    基于模型的温度空气控制和增强选择催化还原的排气

    公开(公告)号:US20120058013A1

    公开(公告)日:2012-03-08

    申请号:US12874333

    申请日:2010-09-02

    IPC分类号: B01D53/94 F02C7/14

    摘要: A method and system for controlling a temperature of an exhaust gas being introduced to a catalyst is provided. Using an adjustable flow controller, an adjustable amount of tempering fluid is provided to the exhaust gas prior to the exhaust gas proceeding to the catalyst. A sensor senses a parameter indicative of a temperature of the exhaust gas being introduced to the catalyst. A computer processor uses a relationship to relate the parameter to an adjustment of the adjustable flow controller that will adjust the amount of tempering fluid provided to the exhaust gas and change the temperature of the exhaust gas being introduced to the catalyst toward a target temperature. Adjustment of the adjustable flow controller is initiated by the computer processor to change the flow of the tempering fluid, and the relationship between the parameter and the adjustment of the adjustable flow controller is updated.

    摘要翻译: 提供了一种用于控制引入催化剂的排气温度的方法和系统。 使用可调流量控制器,在排气进入催化剂之前,将可调量的回火流体提供给废气。 传感器感测指示引入催化剂的废气的温度的参数。 计算机处理器使用一种关系来将参数与可调节流量控制器的调节相关联,该调节流量控制器将调节提供给废气的回火流体的量并将引入催化剂的废气的温度改变为目标温度。 可调节流量控制器的调整由计算机处理器启动,以改变回火流体的流量,并且更新可调节流量控制器的参数与调整之间的关系。

    Mercury reduction system
    50.
    发明授权
    Mercury reduction system 有权
    减汞系统

    公开(公告)号:US08071036B2

    公开(公告)日:2011-12-06

    申请号:US12640599

    申请日:2009-12-17

    IPC分类号: B01D53/64

    摘要: A mercury reduction system includes an NH4Cl supplying unit that sprays an NH4Cl solution into a flue of the boiler, a reduction denitration apparatus that includes a denitration catalyst for reducing NOx in the flue gas with NH3 and oxidizing Hg in the presence of HCl, and a wet desulfurization apparatus for reducing Hg oxidized in the reduction denitration apparatus with limestone-gypsum slurry. The NH4Cl supplying unit includes an NH4Cl solution feed pipe that supplies the NH4Cl solution into the flue in a liquid state, a blow pipe that is inserted into the flue so as to surround the NH4Cl solution feed pipe and through which air is injected into the flue, and a two-fluid nozzle that is fitted to an end of the NH4Cl solution feed pipe and through which the NH4Cl solution is injected. Through the two-fluid nozzle, the NH4Cl solution is injected and sprayed in fine liquid droplets. NH3 is supplied by an ammonia supplying unit and HCl is supplied by a hydrogen chloride supplying unit wherein both units are located between the NH4Cl agent supplying unit and the reduction denitration apparatus.

    摘要翻译: 一种汞还原系统包括将NH 4 Cl溶液喷射到锅炉烟道中的NH4Cl供应单元,还原脱硝装置包括用于在HCl存在下用NH 3还原NOx和氧化Hg的脱硝催化剂,以及 湿法脱硫装置,用于在还原脱硝装置中用石灰石 - 石膏浆料还原Hg。 NH4Cl供给单元包括以液态将NH 4 Cl溶液供给到烟道中的NH4Cl溶液进料管,吹入管,其插入到烟道中,以便包围NH 4 Cl溶液进料管并将空气注入到烟道中 ,以及安装在NH 4 Cl溶液进料管的端部并通过其注入NH 4 Cl溶液的双流体喷嘴。 通过双流体喷嘴,将NH 4 Cl溶液注入并喷射成细液滴。 NH 3由氨供应单元供应,HCl由氯化氢供应单元供应,其中两个单元位于NH 4 Cl剂供应单元和还原脱硝设备之间。