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公开(公告)号:KR1020090092296A
公开(公告)日:2009-08-31
申请号:KR1020097013044
申请日:2007-09-07
Applicant: 바브콕-히다찌 가부시끼가이샤
IPC: B01J27/199 , B01J21/06 , B01D53/86 , F01N3/10
CPC classification number: B01J27/199 , B01D53/8665 , B01D53/9418 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01D2255/9207 , B01D2257/404 , B01D2257/602 , B01J21/063 , B01J21/12 , B01J23/22 , B01J23/28 , B01J35/06 , B01J37/0201 , B01J37/0225
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
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公开(公告)号:KR101088995B1
公开(公告)日:2011-12-01
申请号:KR1020097013044
申请日:2007-09-07
Applicant: 바브콕-히다찌 가부시끼가이샤
IPC: B01J27/199 , B01J21/06 , B01D53/86 , F01N3/10
CPC classification number: B01J27/199 , B01D53/8665 , B01D53/9418 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01D2255/9207 , B01D2257/404 , B01D2257/602 , B01J21/063 , B01J21/12 , B01J23/22 , B01J23/28 , B01J35/06 , B01J37/0201 , B01J37/0225
Abstract: 종래 촉매의 문제점인 Hg 산화와 SO
2 산화간의 이율배반적인 관계를 극복한 배기 가스 정화용 촉매는 SO
2 산화율을 특히 감소시키는 동시에 Hg 산화율을 높은 수준으로 유지시킨다. 본 발명에서는 (i) 티탄(Ti), (ii) 몰리브덴(Mo) 및/또는 텅스텐(W), (iii) 바나듐(V) 및 (iv) 인(P)의 각 산화물로 이루어진 조성물에 있어서, Ti:(Mo 및/또는 W): V의 원자비가 85 내지 97.5:2 내지 10:0.5 내지 10이며, P/(Mo 및/또는 W와 V의 총합) 원자비가 0.5 내지 1.5인 것을 특징으로 하는 배기 가스 정화용 촉매가 제공된다. 또한, 질소 산화물(NO
x ) 및 금속 수은(Hg)을 포함하는 배기 가스를 환원제인 암모니아의 존재하에 상기 촉매와 접촉시켜서, 배기 가스중의 NO
x 의 환원 및 금속 수은(Hg)의 산화를 실시하는 것을 특징으로 하는 배기 가스 정화 방법이 제공된다.-
公开(公告)号:KR101450360B1
公开(公告)日:2014-10-14
申请号:KR1020097017879
申请日:2008-01-30
Applicant: 바브콕-히다찌 가부시끼가이샤
IPC: B01J23/31 , B01J27/199 , B01J37/04 , B01D53/86
CPC classification number: B01J23/31 , B01D53/8665 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01D2257/404 , B01D2257/602 , B01J23/002 , B01J23/28 , B01J23/30 , B01J27/199 , B01J35/06 , B01J37/28 , B01J2523/00 , B01J2523/47 , B01J2523/54 , B01J2523/55 , B01J2523/69 , B01J2523/68
Abstract: 티탄(Ti), 몰리브덴(Mo) 및/또는 텅스텐(W), 바나듐(V) 및 비스무트(Bi)의 산화물로 이루어진 조성물에 있어서, Ti:(Mo 및/또는 W):V의 원자비가 75 내지 98.9:1 내지 15:0.1 내지 10이고, Bi/(Mo 및/또는 W)의 원자비가 0.1 내지 0.8인 것을 특징으로 하는 배기 가스 정화용 촉매, 그의 제조방법 및 상기 촉매를 이용한 배기 가스 정화 방법이 제공된다. 상기 배기 가스 정화용 촉매는 P, As 등의 휘발성 촉매독 화합물이 축적되어도 열화가 적고, SO
2 산화율은 종래 기술의 촉매의 몇분의 1인 낮은 수치로 될 수 있으며, 다양화되는 어느 석탄에서도 석탄 배기 가스 정화에 대하여 장기간 높은 활성과 낮은 SO
2 산화율을 유지할 수 있다.-
公开(公告)号:KR101153533B1
公开(公告)日:2012-06-11
申请号:KR1020097000777
申请日:2007-09-21
Applicant: 바브콕-히다찌 가부시끼가이샤
CPC classification number: B01J23/28 , B01D53/8665 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01J23/002 , B01J23/30 , B01J35/002 , B01J37/0225 , B01J37/0244 , B01J2523/00 , B01J2523/55 , B01J2523/68
Abstract: The invention is directed to providing a catalyst having higher mercury oxidation performance than a conventional catalyst without increasing catalyst quantity or enhancing SO 2 oxidation performance and constitutes an oxidation catalyst for metal mercury, which contains a molybdenum and vanadium complex oxide, for example, MoV 2 O 8 , as a main component having a catalytic activity and which is formed by placing the molybdenum and vanadium complex oxide in layers only on the surface of a plate-like or honeycomb-like porous carrier. The porous carrier contains Ti and W and has a function of an NOx removal catalyst as a whole.
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公开(公告)号:KR1020090128395A
公开(公告)日:2009-12-15
申请号:KR1020097017879
申请日:2008-01-30
Applicant: 바브콕-히다찌 가부시끼가이샤
IPC: B01J23/31 , B01J27/199 , B01J37/04 , B01D53/86
CPC classification number: B01J23/31 , B01D53/8665 , B01D2251/2062 , B01D2255/20707 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01D2257/404 , B01D2257/602 , B01J23/002 , B01J23/28 , B01J23/30 , B01J27/199 , B01J35/06 , B01J37/28 , B01J2523/00 , B01J2523/47 , B01J2523/54 , B01J2523/55 , B01J2523/69 , B01J2523/68
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。
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公开(公告)号:KR1020090075787A
公开(公告)日:2009-07-09
申请号:KR1020097000777
申请日:2007-09-21
Applicant: 바브콕-히다찌 가부시끼가이샤
CPC classification number: B01J23/28 , B01D53/8665 , B01D2255/20723 , B01D2255/20769 , B01D2255/20776 , B01J23/002 , B01J23/30 , B01J35/002 , B01J37/0225 , B01J37/0244 , B01J2523/00 , B01J2523/55 , B01J2523/68
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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