CN103249468A - 用于氧化亚氮分解的催化剂 - Google Patents
用于氧化亚氮分解的催化剂 Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims abstract description 46
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical group [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000000354 decomposition reaction Methods 0.000 title description 3
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims abstract description 9
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011572 manganese Substances 0.000 claims abstract description 6
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 5
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract 3
- 229910000314 transition metal oxide Inorganic materials 0.000 claims abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 22
- 239000001272 nitrous oxide Substances 0.000 claims description 15
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 14
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 239000001361 adipic acid Substances 0.000 claims description 7
- 235000011037 adipic acid Nutrition 0.000 claims description 7
- 238000001354 calcination Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000006424 Flood reaction Methods 0.000 claims description 2
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 2
- 238000005470 impregnation Methods 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000004005 microsphere Substances 0.000 claims description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 150000002696 manganese Chemical class 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000010949 copper Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 229960001545 hydrotalcite Drugs 0.000 description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N zinc oxide Inorganic materials [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000005437 stratosphere Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- B01J23/8892—Manganese
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
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- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
一种用于从含有氧化亚氮的气体混合物中去除氧化亚氮的催化剂，该催化剂包括钴、锰和稀土金属的混合的氧化物，该混合的氧化物具有如下以呈最低价态的CoO、MnO和过渡金属氧化物的重量百分比表示的组成：MnO 38-56％、CoO 22-30％、稀土金属氧化物22-32％。
Description
技术领域
本发明涉及用于将氧化亚氮(N2O)催化分解成氮和氧的催化剂，并且涉及其用于从含有所述氧化亚物的气体混合物中去除所述氧化亚物的用途，尤其是用于去除硝酸和己二酸工厂的排放物。
背景技术
氧化亚氮是比二氧化碳更强烈得多的有害的温室气体；而且，在平流层中其参与导致臭氧层破坏的反应。
形成氧化亚氮的主要工业源是用于生产硝酸和己二酸(在制备尼龙6，6和尼龙6，12中所使用的单体)的工厂。
氧化亚氮以相当大的量存在于己二酸工厂的排放物中：通常组成包括以体积百分比的：30％N2O、2％CO2、2.5％H2O、8-12％O2、50-150ppmNOx、其余部分N2。
硝酸工厂的排放物一般含有300-1700ppm的N2O、100-2000ppm的NOx、1-4％O2和作为其余部分的氮。
来自硝酸和己二酸工厂的N2O排放物被期望为在2005-2020时期增长大约16％。
已知用于N2O分解的一些催化剂。主要的一些催化剂由负载在不同种类的金属氧化物上的贵金属、过渡金属离子取代的沸石或金属氧化物和阴离子粘土负载在其上的沸石构成，例如由具有与层状构造混合的氢氧化物构成的水滑石，其中不同种类的阴离子(可交换或不可交换)和水分子嵌入两个层之间。
所有这些催化剂具有其热不稳的缺陷：负载在金属氧化物上的贵金属因为在高温下金属颗粒趋于烧结，因而导致催化剂钝化；粘土和沸石因为其结构而趋于坍塌，且因此失去初始的催化性能。
下述催化剂是已知的(US5,705,136)，其由氧化物构成，例如负载在MgO、CaO、ZnO、TiO2、Al2O3-ZnO、Al2O3-TiO2和类似物上的MnO、CuO、NiO和CoO。优选地，催化剂包括负载在MgO上的CoO。
N2O转化是高的。
US 2004/0179986 A1提到一种分解N2O的催化剂，其在250℃和450℃之间的温度下是活性的，但在较高的温度下是非活性的，且由重量上等份的Co3O4尖晶石和分子式Lal-xCuXCoO3-d(x≤0.5)的阴离子缺陷钙钛矿(anion defect perovskite)的混合物构成。
所述美国申请强调，类钙钛矿的催化剂如果被负载在氧化铝上，则在高温(700℃-1000℃)下使用时遭受由氧化铝与活性催化剂相的钝化反应引起的钝化。
也可使用水滑石类型的结构，例如Cu3Mg5Al2(OH)20CO33H2O、Mn3Mg5Al2(OH)20CO3H2O。
发明内容
现已意外地发现，在下文所指定的催化剂在将N2O分解成氮和氧时具有高的催化活性、高达900℃的令人满意的热稳定性以及长期地保持其活性不变的能力。在高温下的稳定性尤其通过催化剂被负载在氧化铝上时来提供，这是根据所述美国申请所推知的反向的教导的完全意外的结果。而且，在下文所指定的催化剂具有其不包含铜的特性，铜是一种在高温下进行反应的情况下可能具有挥发性问题的元素，例如直接地在用于将氨氧化成一氧化二氮的反应器中使N2O副产品减少的操作条件下。
该催化剂包括以下述组成存在的混合的钴氧化物、锰氧化物和稀土金属氧化物，所述组成以其中金属处于最低价态的CoO、MnO和稀土金属氧化物的重量百分比的形式表示为：MnO38-56％、CoO22-30％、稀土金属氧化物22-32％。
实施本发明的方式
优选的稀土金属氧化物是氧化镧和氧化铈及其混合物。
优选的组成包含以La2O3表示的重量上为25-30％量的氧化镧。
构成催化剂的活性组分的混合的氧化物具有p型半导体的特性，其中，根据如阿伦尼乌斯定律(Arrhenius-like law)，传导性随着温度升高而按指数规律地增大，且其中，电荷矢量(charge vector)由电子空位构成。在这些氧化物中，晶格氧参与氧化反应。
混合的氧化物用在多孔无机载体上，优选多孔氧化物例如氧化铝、氧化硅-氧化铝、二氧化钛、氧化镁。以具有30-80μm直径的微球颗粒形式的、优选地呈γ形式的氧化铝对于尤其是在流化床中所进行的反应来说是优选的载体。负载在γ氧化铝中的催化剂的表面积(BET)通常包括在90m2/g和170m2/g之间。氧化物优选地以重量上为10-30％的量存在于载体中。
在用于从硝酸和己二酸工厂的排放物中去除氧化亚氮的固定床反应中，优选使用具有平行于颗粒的轴线的通孔的载体，所述载体具有确定的几何形状，例如具有一个或多个洞的、优选地具有三个凸起部(lobe)的圆柱形的颗粒。颗粒尺寸在高度上为3-10mm，且周长包括在3mm和10mm之间。
为制备负载型催化剂，优选的方法在于：以镧或铈或其它稀土金属的盐或其混合物的水溶液来浸渍载体，之后干燥载体并接着在优选地450℃和600℃之间的温度下锻烧。如此处理的载体接着用钴和锰的盐溶液浸渍，随后被干燥并在500℃和750℃之间的温度下锻烧。
可以使用可溶解在水中的任何以上所引述的金属的盐；硝酸盐、甲酸盐和醋酸盐是优选的。
优选的浸渍方法被干燥执行，即通过使用等于或低于载体的孔的体积的一定体积的盐溶液。
在400℃和900℃之间的温度下进行N2O的分解。当N2O含量增加时，使用较高的温度。在来自硝酸工厂的排放物的情况下，优选的温度是在700℃和900℃之间。
空速包括在3,000h-1和100,000h-1之间。混合物中N2O含量从ppm变化到多于20％的体积百分比。通过在以上所表明的条件下工作，任何存在的NOx氧化物保持不变。
以对本发明非限制性阐明的方式给出以下实施例。
实施例
在实施例中所使用催化剂具有以重量百分比表示的以下组成：
La2O3＝27.4
MnO＝46.3
CoO＝26.3
通过使用硝酸镧La(NO3)3水溶液来浸渍γ氧化铝来执行制备。
然后在110℃下干燥载体，且接着在450℃下锻烧。用硝酸锰(Mn(NO3)2)和硝酸钴(Co(NO3)2)的水溶液来浸渍锻烧的载体，且然后在120-200℃下干燥并在700℃下锻烧。
等于氧化铝的孔的体积的100％的体积的溶液用于浸渍。
催化剂的表面积(BET)为160m2/g，且孔隙率为0.40m2/g。
在测试之前，将催化剂磨碎和适当地筛分。
选择催化剂的起燃活性(light-off activity)和氧化亚物的总分解温度作为用于评价所考察的催化剂的性能的主要标准，所述催化剂的起燃活性即为催化剂将50％的存在的氧化亚氮分解时所处的气体流的温度。
结果列在表中，且该结果涉及在不同N2O浓度下对新鲜的催化剂和对在空气中、900℃下老化了3天的催化剂两者进行的测试，以模拟出反应条件的恶化。
表
在本申请要求优先权的意大利专利申请第MI2010A001659号中的公开内容在此通过引用并入。
Claims (12)
1.用于从含有氧化亚氮的气体混合物中去除氧化亚氮的催化剂，所述催化剂包括钴、锰和稀土金属的混合的氧化物，该混合的氧化物具有如下以呈最低价态的CoO、MnO和过渡金属氧化物的重量百分比表示的组成：MnO 38-56％、CoO 22-30％、稀土金属氧化物22-32％。
2.根据权利要求1所述的催化剂，其用于将存在于用于生产硝酸和己二酸的工厂的排放物中的氧化亚氮去除。
3.根据权利要求1所述的催化剂，其中含有氧化亚氮的所述气体混合物在400℃和900℃之间的温度下与所述催化剂接触。
4.根据权利要求2所述的催化剂，其中使工厂排出的所述排放物横穿被保持在600℃和900℃之间的温度下的固定床。
5.根据权利要求1-4中任一项所述的催化剂，其中所述催化剂包括氧化镧。
6.根据权利要求1-5中任一项所述的催化剂，其中所述催化剂被负载在无机多孔氧化物上。
7.根据权利要求6所述的催化剂，其中所述催化剂被负载在微球氧化铝上。
8.根据权利要求7所述的催化剂，其中所述催化剂被负载在颗粒上，所述颗粒具有筛孔筒的形状或带有一个或多个凸起部，所述一个或多个凸起部具有平行于所述颗粒的轴线的通孔。
9.用于制备根据权利要求6-8所述的催化剂的方法，其中载体首先以镧或其它稀土金属的盐的水溶液来浸渍，干燥并接着在450℃和600℃之间的温度下锻烧，且随后用钴和锰盐的溶液浸渍，且接着在干燥之后，在500℃和750℃之间的温度下锻烧。
10.下述的催化剂用于从含有氧化亚氮的气体混合物中去除氧化亚氮的用途，所述催化剂包括以下述比例存在的钴、锰和稀土金属的混合的氧化物，所述比例以其中金属处于最低价态的CoO、MnO和稀土金属氧化物的重量百分比的形式表示为：CoO 22-30％、MnO 38-56％以及稀土金属氧化物22-32％。
11.根据权利要求10所述的用途，其中所述稀土金属氧化物是氧化镧和/或氧化铈。
12.根据权利要求10和权利要求11所述的用途，用于从硝酸和己二酸的工厂的排放物中去除氧化亚氮。
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| ITMI2010A001659A IT1401698B1 (it) | 2010-09-13 | 2010-09-13 | Catalizzatore per la decomposizione di protossido d'azoto. |
| ITMI2010A001659 | 2010-09-13 | ||
| PCT/EP2011/065393 WO2012034902A1 (en) | 2010-09-13 | 2011-09-06 | Catalyst for the decomposition of nitrogen protoxide |
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| CN103586040A (zh) * | 2013-11-13 | 2014-02-19 | 刘崇莲 | 一种处理n2o的催化剂及其制备工艺 |
| CN104437499A (zh) * | 2014-10-31 | 2015-03-25 | 兰州天越环保科技有限公司 | 一种用于分解氧化亚氮的催化剂及其制备方法 |
| CN106944048A (zh) * | 2017-03-08 | 2017-07-14 | 昆明南铂环保科技有限公司 | 氧化亚氮转化催化剂 |
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| EP2202201B1 (en) * | 2008-12-23 | 2016-04-20 | Clariant Prodotti (Italia) SpA | Ammonia oxidation catalysts |
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| US5705136A (en) * | 1995-11-13 | 1998-01-06 | University Of Florida Research Foundation, Inc. | Catalyzed decomposition of nitrogen oxides on metal oxide supports |
| US20040179986A1 (en) * | 1998-09-09 | 2004-09-16 | Porzellanwerk Kloster Veilsdorf Gmbh | Ceramic catalyst for the selective decomposition of N2O and method for making same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103586040A (zh) * | 2013-11-13 | 2014-02-19 | 刘崇莲 | 一种处理n2o的催化剂及其制备工艺 |
| CN103586040B (zh) * | 2013-11-13 | 2017-02-08 | 刘崇莲 | 一种处理n2o的催化剂及其制备工艺 |
| CN104437499A (zh) * | 2014-10-31 | 2015-03-25 | 兰州天越环保科技有限公司 | 一种用于分解氧化亚氮的催化剂及其制备方法 |
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| NO2616165T3 (zh) | 2018-06-16 |
| US8809224B2 (en) | 2014-08-19 |
| US20130172178A1 (en) | 2013-07-04 |
| ES2666214T3 (es) | 2018-05-03 |
| RU2573000C2 (ru) | 2016-01-20 |
| HUE036900T2 (hu) | 2018-08-28 |
| CA2812142A1 (en) | 2012-03-22 |
| EP2616165B1 (en) | 2018-01-17 |
| PT2616165T (pt) | 2018-04-20 |
| ITMI20101659A1 (it) | 2012-03-14 |
| EP2616165A1 (en) | 2013-07-24 |
| RU2013116992A (ru) | 2014-10-20 |
| CN103249468B (zh) | 2015-06-03 |
| CA2812142C (en) | 2018-08-21 |
| KR20130114657A (ko) | 2013-10-17 |
| PL2616165T3 (pl) | 2018-07-31 |
| WO2012034902A1 (en) | 2012-03-22 |
| IT1401698B1 (it) | 2013-08-02 |
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