摘要:
The present invention refers to a microporous crystalline material of zeolitic nature (ITQ-22) which, in the calcined state, has the empirical formula wherein M is H+ or at least one inorganic cation of charge +n;
X is at least one chemical element of oxidation state +3, preferably selected from the group consisting of Al, Ga, B, Fe and Cr; Y is at least one chemical element with oxidation state +4 other than Si and Ge, preferably selected from the group consisting of Ti, Sn and V; x has a value less than 0.2, preferably less than 0.1 and can take the value zero, y has a value less than 0.1, preferably less than 0.05 and can take the value zero, z has a value less than 0.8, preferably between 0.005 and 0.5 and can take the value zero, with a characteristic X-ray diffraction pattern, to the method of preparation and to the use of the material in separation and transformation processes of organic compounds.
摘要:
This invention relates to a new synthetic porous crystalline material, designated MCM-68, a method and novel polycyclic organic cation for its preparation and its use in catalytic conversion of organic compounds. The new crystalline material exhibits a distinctive X-ray diffraction pattern and has a unique crystal structure which contains at least one channel system, in which each channel is defined by a 12-membered ring of tetrahedrally coordinated atoms, and at least two further, independent channel systems, in each of which each channel is defined by a 10-membered ring of tetrahedrally coordinated atoms, wherein the number of unique 10-membered ring channels is twice the number of 12-membered ring channels.
摘要:
A process for catalytic cracking of a hydrocarbon feedstock feeds to produce an enhanced yield butylenes and isobutane comprises contacting the feedstock with a catalyst composition comprising MCM-68. The MCM-68 may be used as the primary cracking catalyst or may be used as an additive component in conjunction with a conventional cracking catalyst, such as a large pore molecular sieve having a pore size greater than 7 Angstrom.
摘要:
A method is disclosed for producing branched aliphatic ketones in hydrocarbon mixtures from isoalkanes by a superacid catalyzed formylation-rearrangement reaction. The method can be used to simultaneously isomerize, if necessary, and formylate hydrocarbons in complex hydrocarbon mixtures such as refinery streams, alkylate mixtures, and natural gas liquids. Natural gas liquids of low octane number are upgraded and oxygenated by adding to the natural gas liquids or reactively producing in the liquids branched aliphatic ketones.
摘要:
L'invention concerne la zéolithe NU-88 caractérisée par:
i) une composition chimique exprimée sur une base anhydre, en termes de rapports molaires d'oxydes, par la formule :
100 XO 2 , m Y 2 O 3 , p R 2/n O,
où m est égal ou inférieur à 10, p est égal ou inférieur à 20, R représente un ou plusieurs cations de valence n, X représente du silicium et/ou du germanium, Y représente un ou plusieurs des éléments suivants : l'aluminium, le fer, le gallium, le bore, le titane, le vanadium, le zirconium, le molybdène, l'arsenic, l'antimoine, le chrome et le manganèse, et
ii) le fait qu'elle présente, sous forme brute de synthèse, un diagramme de diffraction X comportant les résultats présentés dans le tableau 1 de la description
L'invention concerne aussi la préparation de ladite zéolithe, tout catalyseur comprenant ladite zéolithe ainsi que tout procédé catalytique utilisant un tel catalyseur.
摘要翻译:该沸石在无水基础上具有以下结构式:100XO2,mY2O3,pR2 / nO-m≤10的摩尔氧化物比例的组合物; p≤10; R =一价或多价n价阳离子; X = Si和/或Ge(优选Si); Y = Al,Fe,Ga,B,Ti,V,Zr,Mo,As,Sb,Cr和Mn。 还要求的是沸石的制备和含有该沸石的任何催化剂和涉及使用这种催化剂的方法。
摘要:
Titanium-aluminum-silicon-oxide molecular sieves having use as molecular sieves and as catalyst compositions in hydrocarbon conversion and other processes. The molecular sieves have a unit empirical formula on an anhydrous basis of mR: (TixAlySiz)O2 wherein "R" represents at least one organic + emplating agent: "m" represents the moles of "R" present per mole of (TixAlySiz)O2: and "x", "y" and "z" represent the mole fractions of titanium, aluminum and silicon, respectively present as tetrahedal oxides.