Method of operating a combustion unit of a coal-fired power plant with a
slag tap furnace and combustion plant operating according to the method
    21.
    发明授权
    Method of operating a combustion unit of a coal-fired power plant with a slag tap furnace and combustion plant operating according to the method 失效
    根据该方法操作燃煤发电厂的燃烧单元的方法,该燃烧单元具有炉渣自来炉和燃烧设备

    公开(公告)号:US06067914A

    公开(公告)日:2000-05-30

    申请号:US40970

    申请日:1998-03-18

    摘要: A method of operating a combustion unit of a coal-fired power plant operating according to a slag tap furnace firing method, which includes supplying a titanium-containing material in addition to coal to a melting chamber for accelerating coal burn-up, burning the titanium-containing material together with the coal in the melting chamber at a temperature above 1500.degree. C., and generating fly ash and molten ash as a result of combustion in the melting chamber. Additionally, a combustion unit for a coal-fired power plant, including a melting chamber that has a combustion zone for receiving coal. The combustion zone produces fly ash. The combustion unit also includes a separate feed line for supplying a titanium-containing material to the combustion zone for accelerating burn-up of the coal and a second separate feed line first to supply a titanium-containing material to the fly ash and then supply the titanium-containing material and fly ash combination to the combustion zone for accelerating burn-up of the coal and fly ash.

    摘要翻译: 一种操作燃煤发电厂的燃烧单元的方法,该燃煤发电厂根据炉渣自熔炉的燃烧方法操作,该方法包括将除了煤之外的含钛材料供应到用于加速燃煤的熔化室,燃烧钛 所述材料与所述熔融室中的煤一起在高于1500℃的温度下,并且由于在所述熔化室中的燃烧而产生飞灰和熔融灰。 另外,一种用于燃煤发电厂的燃烧单元,包括具有用于接收煤的燃烧区的熔化室。 燃烧区产生飞灰。 燃烧单元还包括单独的进料管线,用于将含钛材料供应到燃烧区域以加速煤的燃尽,并且第二分离的进料管线首先将含钛材料供应给飞灰,然后将 含钛材料和飞灰组合到燃烧区,用于加速燃煤和飞灰的燃烧。

    Process for producing a catalyst
    22.
    发明授权
    Process for producing a catalyst 失效
    催化剂生产方法

    公开(公告)号:US5866499A

    公开(公告)日:1999-02-02

    申请号:US554599

    申请日:1995-11-06

    摘要: In the production of a catalyst containing a catalytically active Mo--V--O phase, the problem exists of keeping the Mo--V--O phase and/or an Mo--V--Ti--O phase substantially free of other catalytically active impurities in order not to catalyze competing reactions at the same time. For this purpose, the invention provides that vanadium oxide and molybdenum oxide are mixed in a ratio of 0.7 to 1% by weight based on V.sub.2 O.sub.5 and MoO.sub.3, the mixture is heated to a temperature above 500.degree. C., the Mo--V--O phase is cooled, ground and then subjected to a reducing treatment, and dispersed on a heated oxidic support, the dispersed material is then ground, and then applied to a suitable macroscopic support, optionally with further additives, and calcined. Alternatively, the material dispersed on the oxidic support can be kneaded with additives to form an extrudable compound, and the compound can be extruded and then calcined so that the honeycomb bodies produced from the compound have crosspiece widths in a range of from 0.1 to 0.6 mm and cell densities of 50 to 1200 cells per square inch.

    摘要翻译: 在含有催化活性Mo-VO相的催化剂的生产中,存在保持Mo-VO相和/或Mo-V-Ti-O相基​​本上不含其它催化活性杂质的问题,以便不催化竞争 反应同时。 为此,本发明提供氧化钒和氧化钼以基于V 2 O 5和MoO 3的0.7〜1重量%的比例混合,将混合物加热至500℃以上,Mo-VO相为 冷却,研磨,然后进行还原处理,并分散在加热的氧化剂载体上,然后将分散的材料研磨,然后施加到合适的宏观载体上,任选地与其它添加剂一起煅烧。 或者,分散在氧化载体上的材料可以与添加剂混合以形成可挤出的化合物,并且可以将化合物挤出然后煅烧,使得由化合物制备的蜂窝体具有在0.1至0.6mm的范围内的横档宽度 细胞密度为每平方英寸50至1200个细胞。

    Method for reducing nitrogen oxides in flue gases with an arsenic
resistant catalyst
    23.
    发明授权
    Method for reducing nitrogen oxides in flue gases with an arsenic resistant catalyst 失效
    用耐砷催化剂还原烟道气中的氮氧化物的方法

    公开(公告)号:US5433935A

    公开(公告)日:1995-07-18

    申请号:US125538

    申请日:1993-09-22

    申请人: Erich Hums

    发明人: Erich Hums

    IPC分类号: B01D53/86 B01J23/28 C01B21/04

    CPC分类号: B01J23/28 B01D53/8628

    摘要: An arsenic-resistant composite oxide catalyst containing oxides of at least the metals vanadium and molybdenum, in particular for reducing nitrogen oxides in flue gases in the presence of a reducing agent, such as ammonia or carbon monoxide, includes at least one composite oxide phase with a general formula V.sub.x Mo.sub.y O.sub.32, where x+y.ltoreq.12 and where x.gtoreq.1 and y.gtoreq.1, and optionally a MoO.sub.3 phase. A method for producing an arsenic-resistant composite oxide catalyst includes mixing vanadium oxide and molybdenum oxide or a precursor thereof with one another to form a mixture, heating the mixture to a temperature at which a mixture of oxides is present, preferably in completely molten form, then cooling down the mixture to form at least one composite oxide phase with a general formula V.sub.x Mo.sub.y O.sub.32, and then subjecting the composite oxide phase to a reducing treatment to prepare a lower-oxygen composite oxide phase with the same structure.

    摘要翻译: 含有至少金属钒和钼的氧化物的耐砷复合氧化物催化剂,特别是用于在还原剂如氨或一氧化碳存在下还原烟道气中的氮氧化物,包括至少一种复合氧化物相,其具有 通用公式VxMoyO32,其中x + y <12,其中x> / = 1和y> / = 1,以及可选的MoO 3相。 制备耐砷复合氧化物催化剂的方法包括将氧化钒和氧化钼或其前体彼此混合以形成混合物,将混合物加热到存在氧化物混合物的温度,优选完全熔融形式 然后冷却混合物以形成具有通式VxMoyO32的至少一种复合氧化物相,然后对复合氧化物相进行还原处理以制备具有相同结构的低氧复合氧化物相。

    Catalyst material for reducing nitrogen oxides in flue gases and method
for producing the same
    24.
    发明授权
    Catalyst material for reducing nitrogen oxides in flue gases and method for producing the same 失效
    用于还原烟道气中的氮氧化物的催化剂材料及其制造方法

    公开(公告)号:US4851381A

    公开(公告)日:1989-07-25

    申请号:US106565

    申请日:1987-10-08

    申请人: Erich Hums

    发明人: Erich Hums

    CPC分类号: B01J37/0009 B01D53/8628

    摘要: A catalyst material for nitrogen oxide reduction in flue gases in the presence of ammonia and a method for producing the same, includes adding vanadium oxide and at least one oxide of the elements from the group consisting of tungsten, phosphorous, sulfur, chromium, zirconium, magnesium, copper, cobalt, iron, and uranium to hydrothermal titanium oxide forming a mixture. The mixture is activated by grinding. A molybdenum component is admixed to the mixture. The mixture is subsequently temperature treated.

    摘要翻译: 在氨的存在下,用于烟道气中氮氧化物还原的催化剂材料及其制备方法包括从钨,磷,硫,铬,锆等中加入钒氧化物和至少一种元素氧化物, 镁,铜,钴,铁和铀与水热氧化钛形成混合物。 混合物通过研磨活化。 将钼组分与混合物混合。 随后对该混合物进行温度处理。