배기 가스 정화용 촉매
    1.
    发明公开
    배기 가스 정화용 촉매 有权
    排气净化催化剂

    公开(公告)号:KR1020090092296A

    公开(公告)日:2009-08-31

    申请号:KR1020097013044

    申请日:2007-09-07

    Abstract: An exhaust gas purification catalyst that breaking the warring relationship between Hg oxidation and SO2 oxidation as a limit of conventional catalysts, realizes lowering only the SO2 oxidation ratio while maintaining the Hg oxidation ratio at a high level. There is provided an exhaust gas purification catalyst consisting of a composition comprising respective oxides of (i) titanium (Ti), (ii) molybdenum (Mo) and/or tungsten (W), (iii) vanadium (V) and (iv) phosphorus (P) wherein the atomic ratio of Ti : (Mo and/or W) : V is 85 to 97.5 : 2 to 10 : 0.5 to 10, and wherein the atomic ratio of P/(sum of Mo and/or W and V) is inthe range of 0.5 to 1.5. Further, there is provided a method of exhaust gas purification characterized in that an exhaust gas containing nitrogen oxide (NOx) and metallic mercury (Hg) is brought into contact with the above catalyst in the presence of ammonia as a reducing agent so as to carry out oxidation of metallic mercury (Hg) and reduction of NOx contained in the exhaust gas. ® KIPO & WIPO 2009

    Abstract translation: 作为常规催化剂的极限,破坏Hg氧化和SO2氧化之间的交互关系的排气净化催化剂实现仅将SO 2氧化比降低,同时将Hg氧化率保持在高水平。 提供一种由包含(i)钛(Ti),(ii)钼(Mo)和/或钨(W),(iii)钒(V)和(iv))的各自的氧化物组成的废气净化催化剂, 磷(P),其中Ti:(Mo和/或W):V的原子比为85〜97.5:2〜10:0.5〜10,其中P /(Mo和/或W和 V)在0.5至1.5的范围内。 此外,提供了一种排气净化方法,其特征在于,在氨作为还原剂的存在下,使含有氮氧化物(NOx)和金属汞(Hg)的废气与上述催化剂接触,以便携带 金属汞(Hg)的氧化和废气中所含的NOx的还原。 ®KIPO&WIPO 2009

    배기 가스 정화용 촉매 및 그의 제조방법
    5.
    发明公开
    배기 가스 정화용 촉매 및 그의 제조방법 有权
    排气净化催化剂及其生产方法

    公开(公告)号:KR1020090128395A

    公开(公告)日:2009-12-15

    申请号:KR1020097017879

    申请日:2008-01-30

    Abstract: Disclosed are: an exhaust gas purification catalyst which comprises a composition comprising oxides of titanium (Ti), molybdenum (Mo) and/or tungsten (W), vanadium (V) and bismuth (Bi), wherein the [Ti:(Mo and/or W):V] ratio is 75-98.9:1-15:0.1-10 on an atom basis and the [Bi/(Mo and/or W)] ratio is 0.1 to 0.8 on an atom basis; a method for producing the catalyst; and an exhaust gas purification method using the catalyst. The exhaust gas purification catalyst is less likely to be deteriorated when a volatile catalyst-poisoning compound such as P and As is accumulated, and enables to reduce the SOoxidation rate to a fraction of that of a conventional catalyst. Further, when used in the purification of a coal combustion gas, the exhaust gas purification catalyst can keep its activity at a high level over a long period and can keep its SOoxidation rate at a low level even if the coal becomes diversified.

    Abstract translation: 公开了一种废气净化催化剂,其包含钛(Ti),钼(Mo)和/或钨(W),钒(V)和铋(Bi)的氧化物的组合物,其中[Ti:(Mo和 /或W):V]比为75-98.9:1.15:1-10,原子为[Bi /(Mo和/或W)]比为0.1〜0.8; 催化剂的制造方法; 和使用该催化剂的排气净化方法。 当挥发性催化剂中毒化合物如P和As积聚时,废气净化催化剂不太可能劣化,并且能够将SOX化率降低到常规催化剂的一部分。 此外,当用于煤燃烧气体的净化时,废气净化催化剂可以长时间保持其高水平的活性,并且即使煤变得多样化,也可以将其氧化率保持在低水平。

    금속 수은의 산화 촉매
    6.
    发明公开
    금속 수은의 산화 촉매 有权
    用于氧化金属汞的催化剂

    公开(公告)号:KR1020090075787A

    公开(公告)日:2009-07-09

    申请号:KR1020097000777

    申请日:2007-09-21

    Abstract: Disclosed is a catalyst which is more highly capable of oxidizing mercury than a conventional catalyst without the need of being used in a large amount and without the need of increasing its SO2-oxidizing ability. Specifically disclosed is a catalyst for oxidation of metal mercury, which comprises a composite oxide of molybdenum and vanadium (e.g., MoV2O8) as the catalytically active main ingredient, wherein the composite oxide of molybdenum and vanadium is supported in the layered form only on the surface of a sheet-like or honeycomb-like porous carrier. The porous carrier comprises Ti and W and has a function of a denitrification catalyst as a whole.

    Abstract translation: 公开了一种催化剂,其比常规催化剂更能够氧化汞,而不需要大量使用,而不需要增加其SO 2氧化能力。 具体公开了一种用于氧化金属汞的催化剂,其包含钼和钒的复合氧化物(例如,MoV 2 O 8)作为催化活性主要成分,其中钼和钒的复合氧化物仅在表面上以层状形式负载 的片状或蜂窝状多孔载体。 多孔载体包括Ti和W,并且具有作为整体的脱氮催化剂的功能。

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