Abstract:
A catalyst washcoat is provided having a molecular sieve with a CHA crystal structure; about 0.5 to about 5.0 mol % phosphorus; and SiO2 and Al2O3 in a mole ratio of about 5 to about 40. The washcoat includes one or more promoters or stabilizers, and may be applied to a monolith substrate to produce a catalytically active article.
Abstract:
The invention is directed to open-framework and microporous solids well suited for use in catalysis and ion exchange. The microporous solids are constructed by using a salt template which can be readily removed without destroying the framework of the micropore. Various microporous solids can be formed having different geometric structures depending upon the templating salt used and the concentration. Examples of two compounds include Na2Cs[Mn3(P2O7)2]Cl and K2.02Cs2.90[Cu3(P2O7)2]Cl2.92. Both compounds have 3-D (Mn, Cu)—P—O frameworks.
Abstract translation:本发明涉及非常适合用于催化和离子交换的开放框架和微孔固体。 通过使用可以容易地除去的盐模板来构建微孔固体,而不会破坏微孔的骨架。 根据所使用的模板盐和浓度,可以形成具有不同几何结构的各种微孔固体。 两种化合物的实例包括Na 2 C 3 [Mn 3 N 2(N 2 O 7)2 C 1和K 2 O 2 C 2 O 2·C 2 O 2·C 3 N 2(P 2 N 2) / SUB>)2 B> sub> 2.92。 两种化合物都具有3-D(Mn,Cu)-P-O骨架。
Abstract:
The present invention discloses a phosphorus-containing zeolite having MFI type structure. The anhydrous composition (based on the mole ratios of oxides) of the above zeolite is0.01-0.3Na.sub.2 O.Al.sub.2 O.sub.3.0.2-1.5P.sub.2 O.sub.5.30-90SiO.sub.2Said zeolite possesses a X-ray diffraction pattern listed in Table 1. The pore volume ratio of 1.0-10 nm mesopore to 10-membered ring pore is no less than 0.5. The crystal particle size of said zeolite is in the range of 0.8-2.0 micron. Said zeolite exhibits superior hydrothermal stability in catalytic conversion of hydrocarbons. Especially, when said zeolite is applied in catalytic cracking of hydrocarbons, it will enhance the crackability of large molecules, improve gasoline octane value and stability, and reduce the sulfur content in the gasoline as well.
Abstract:
The invention is directed to open-framework and microporous solids well suited for use in catalysis and ion exchange. The microporous solids are constructed by using a salt template which can be readily removed without destroying the framework of the micropore. Various microporous solids can be formed having different geometric structures depending upon the templating salt used and the concentration. Examples of two compounds include Na2Cs[Mn3(P2O7)2]Cl and K2.02Cs2.90[Cu3(P2O7)2]Cl2.92. Both compounds have 3-D (Mn, Cu)-P-O frameworks.
Abstract translation:本发明涉及非常适合用于催化和离子交换的开放框架和微孔固体。 通过使用可以容易地除去的盐模板来构建微孔固体,而不会破坏微孔的骨架。 根据所使用的模板盐和浓度,可以形成具有不同几何结构的各种微孔固体。 两种化合物的实例包括Na 2 C 3 [Mn 3 N 2(N 2 O 7)2 C 1和K 2 O 2 C 2 O 2·C 2 O 2·C 3 N 2(P 2 N 2) / SUB>)2 B> sub> 2.92。 两种化合物都具有3-D(Mn,Cu)-P-O骨架。
Abstract:
The present invention is directed to open-framework and microporous solids particularly well suited for use in catalysis and ion exchange. The microporous solids are constructed by using a salt template which can be readily removed without destroying the framework of the micropore. Various microporous solids can be formed having different geometric structures depending upon the templating salt used and the concentration. Examples of two compounds include Na2Cs[Mn3(P2O7)2]Cl(1) and K2.02Cs2.90[Cu3(P2O7)2]C12.92(2). Compound 1 crystallizes in the space group C2/c with a=21.210(8), b=5.272(2), c=13.924(2)Å, beta=119.04(2), and Z=4. Compound 2 crystallizes in the space group 14/mcm with a=b=18.001(3), c=13.530(4)Å, and Z=8. Both compounds have 3-D (Mn, Cu)—P—O frameworks. For 1, two MnO4, two MnO5 polyhedra and four PO4 tetrahedra form small tunnels where Cs+ and Cl− ions reside. For 2, CuO4 and P2O7 groups form two different tunnels, one is similar to that in 1 (ca. 5.3 Å in diameter) while the other formed by eight CuO4 polyhedra and eight PO4 tetrahedra has an approximate diameter of 12 Å.
Abstract:
A method of preparing silicoaluminophosphate (SAPO) compositions from a forming mixture which comprises sources of oxides of silicon, aluminum and phosphorus and quaternary ammonium-functionalized organosiliconate directing agent wherein the oxides of silicon are provided at least in part by said directing agent, e.g., N-trimethoxysilylpropyl-N,N,N-trimethylammonium chloride.
Abstract:
A synthetic zeolite material, designated zeolite Nu-5, having a molar composition expressed by the formula; 0.5 to 1.5 R.sub.2 O: Y.sub.2 O.sub.3 : at least 10 XO.sub.2 : 0 to 2000 H.sub.2 O wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and or germanium, Y is one or more of aluminium, iron, chromium, vanadium, molybdenum, arsenic, manganese, gallium or boron, and H.sub.2 O is water of hydration additional to water notionally present when R is H, and having a defined X-ray diffraction pattern. Zeolite Nu-5 is a useful catalyst.
Abstract:
A phosphorus-containing or phosphorus-modified ZSM-5 molecular sieve is characterized in that in its 27Al MAS-NMR, the ratio of peak area for the resonance signal having a chemical shift of 39±3 ppm to peak area for the resonance signal having a chemical shift of 54 ppm±3 ppm is ≥1; or in its surface XPS elemental analysis, the value of n1/n2 is ≤0.1. n1 represents the mole number of phosphorus, n2 represents the total mole number of silicon and aluminum. A cracking auxiliary or cracking catalyst contains the phosphorus-containing/phosphorus-modified ZSM-5 molecular sieve can be made using the phosphorus-containing or phosphorus-modified ZSM-5 molecular sieve.
Abstract:
A catalyst composition is provided having a CHA crystal structure; about 0.5 to about 5.0 mol % phosphorus; and SiO2 and Al2O3 in a mole ratio of about 5 to about 40. The catalyst composition is capable of NOx conversion at elevated temperatures. A catalytically active washcoat includes such catalyst compositions and one or more promoters or stabilizers, and may be applied to a monolith substrate to produce a catalytically active article. Methods of reducing NOx employing the catalyst compositions are also provided.
Abstract translation:提供具有CHA晶体结构的催化剂组合物; 约0.5至约5.0mol%的磷; 和摩尔比为约5至约40的SiO 2和Al 2 O 3。催化剂组合物能够在升高的温度下进行NOx转化。 催化活性的修补基面涂料包括这样的催化剂组合物和一种或多种促进剂或稳定剂,并且可以应用于整料基材以产生催化活性制品。 还提供了使用催化剂组合物还原NOx的方法。
Abstract:
The catalyst for producing aromatic hydrocarbon is for producing monocyclic aromatic hydrocarbon having 6 to 8 carbon number from oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower and contains crystalline aluminosilicate and phosphorus. A molar ratio (P/Al ratio) between phosphorus contained in the crystalline aluminosilicate and aluminum of the crystalline aluminosilicate is from 0.1 to 1.0. The production method of monocyclic aromatic hydrocarbon is a method of bringing oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower into contact with the catalyst for producing monocyclic aromatic hydrocarbon.