摘要:
The invention concerns a novel crystalline solid UVL-1 which has an X ray diffraction diagram containing at least the following characteristic peaks: dhkl (A)2theta (°)I/I0 11.697.55mw to vs 7.5011.79vw to w 5.7615.36w to mw 3.7024.00m to s 3.5724.91s 3.3626.49vs 3.1428.48w to mw 2.5035.88vw 2.4137.30vw and with a chemical composition, expressed as the anhydrous compound, in terms of moles of oxide: (XO2):(Y2O3)m:(Z2/nO)p in which: X represents at least one tetravalent element selected from the group formed by Si, Ge; Y represents at least one trivalent element selected from Al, B, Cr, Ga; Z represents at least one cation with valency n; and in which: n is in the range 2 to 4, m is in the range 0 to 0.2, preferably in the range 0 to 0.05, and p is in the range 0 to 0.2, preferably in the range 0 to 0.05. The invention also concerns a hydrocracking/hydroconversion process and a hydrorefining process employing said solid in the catalyst composition.
摘要:
Used noble metal-containing titanium or vanadium zeolite catalysts, that have been employed in the epoxidation of olefins with hydrogen and oxygen, are regenerated by contacting the spent catalyst with water or an alcohol/water mixture at a temperature of 25° C. to 200° C.
摘要:
The invention concerns a novel crystalline solid UVL-1 which has an X ray diffraction diagram containing at least the following characteristic peaks: dhkl (A)2theta (°)I/I0 11.697.55mw to vs 7.5011.79vw to w 5.7615.36w to mw 3.7024.00m to s 3.5724.91s 3.3626.49vs 3.1428.48w to mw 2.5035.88vw 2.4137.30vw and with a chemical composition, expressed as the anhydrous compound, in terms of moles of oxide: (XO2):(Y2O3)m:(Z2/nO)p in which: X represents at least one tetravalent element selected from the group formed by Si, Ge; Y represents at least one trivalent element selected from Al, B, Cr, Ga; Z represents at least one cation with valency n; and in which: n is in the range 2 to 4, m is in the range 0 to 0.2, preferably in the range 0 to 0.05, and p is in the range 0 to 0.2, preferably in the range 0 to 0.05. The invention also concerns a hydrocracking/hydroconversion process and a hydrorefining process employing said solid in the catalyst composition.
摘要:
A method is provided for producing propylene oxide, wherein propylene is reacted with hydrogen peroxide in the presence of an organic solvent and a crystalline titanosilicate catalyst having an MWW structure containing Ti, the Ti having been incorporated during crystallization.
摘要:
A process for treating organic compounds includes providing a composition which includes a substantially mesoporous structure of silica containing at least 97% by volume of pores having a pore size ranging from about 15 Å to about 30 Å and having a micropore volume of at least about 0.01 cc/g, wherein the mesoporous structure has incorporated therewith at least about 0.02% by weight of at least one catalytically and/or chemically active heteroatom selected from the group consisting of Al, Ti, V, Cr, Zn, Fe, Sn, Mo, Ga, Ni, Co, In, Zr, Mn, Cu, Mg, Pd, Pt and W, and the catalyst has an X-ray diffraction pattern with one peak at 0.3° to about 3.5° at 2θ. The catalyst is contacted with an organic feed under reaction conditions wherein the treating process is selected from alkylation, acylation, oligomerization, selective oxidation, hydrotreating, isomerization, demetalation, catalytic dewaxing, hydroxylation, hydrogenation, ammoximation, isomerization, dehydrogenation, cracking and adsorption.
摘要翻译:一种用于处理有机化合物的方法包括提供一种组合物,其包括基本上介孔结构的二氧化硅,其含有至少97体积%的孔径范围为约至约的孔,并且具有至少约0.01的微孔体积 cc / g,其中介孔结构具有至少约0.02重量%的至少一种选自Al,Ti,V,Cr,Zn,Fe,Sn,Mo的催化和/或化学活性的杂原子 ,Ga,Ni,Co,In,Zr,Mn,Cu,Mg,Pd,Pt和W,催化剂在2θ处具有0.3°至约3.5°的一个峰的X射线衍射图。 催化剂在反应条件下与有机原料接触,其中处理过程选自烷基化,酰化,低聚,选择性氧化,加氢处理,异构化,脱金属催化脱蜡,羟基化,氢化,氨肟化,异构化,脱氢,裂化和吸附。
摘要:
There is provided a zeolite bound zeolite catalyst which does not contain significant amount of non-zeolitic binder and can be tailored to optimize its performance and a process for converting hydrocarbons utilizing the zeolite bound zeolite catalyst. The zeolite bound zeolite catalyst comprises core crystals containing first crystals of a first zeolite and optionally second crystals of a second zeolite having a composition, structure type, or both that is different from said first zeolite and binder crystals containing third crystals of a third zeolite and optionally fourth crystals of a fourth zeolite having a composition, structure type, or both that is different from said third zeolite. If the core crystals do not contain the second crystals of the second zeolite, then the binder crystals must contain the fourth crystals of the fourth zeolite. The zeolite bound zeolite finds application in hydrocarbon conversion processes, e.g., catalytic cracking, alkylation, disproportional of toluene, isomerization, and transalkylation reactions.
摘要:
Intermediate precursor compositions for use in manufacturing supported reactive catalysts having a controlled coordination structure, and methods for manufacturing such precursor compositions are disclosed. The precursor compositions include a catalyst complex formed from catalyst atoms and a control agent that is applied to a substrate. Reduction of the catalyst complex yields supported reactive catalyst in which a preponderance of the top or outer layer of atoms of the catalyst particles exhibit a controlled coordination number of 2. The supported catalysts are useful for a variety of chemical reactions, including the preparation of hydrogen peroxide with high selectivity.
摘要:
A catalytic material includes a microporous zeolite supported on a mesoporous inorganic oxide support. The microporous zeolite can include zeolite beta, zeolite Y or ZSM-5. The mesoporous inorganic oxide can be, e.g., silica or alumina, and can optionally include other metals. Methods for making and using the catalytic material are described herein.
摘要:
A method for preparing hollow nanofibers having carbon as a primary component by contacting a carbon-containing compound with a catalyst at 500 to 1200null C., wherein the catalyst is one of a zeolite exhibiting thermal resistance at 900null C. and, supported thereon, a metal; a metallosilicate zeolite containing a heteroatom except aluminum and silicon and a metal; a supporting material and fine cobalt particles exhibiting a binding energy of a cobalt 2P3/2 electron of 779.3 to 781.0 eV; a supporting material and fine cobalt particles exhibiting a cobalt atom ratio in the surface of the supporting material of 0.1 to 1.5%, as measured by the X-ray photoelectron spectroscopy at 10 kV and 18 mA; a supporting material and fine cobalt particles exhibiting a weight ratio of cobalt to a second metal component of 2.5 or more; and a zeolite having a film form and a metal.
摘要:
A unique reactor configuration especially suitable for interphase mass transfer and mixing of multiple phases, i.e. gas(es), liquid(s), and solid(s) where reaction is catalyzed by a solid catalyst comprises a draught tube reactor wherein the solid catalyst particles are maintained in an annular space between the draught tube of the reactor and an annulus-defining wall by means of filter elements positioned downstream and optionally also upstream from the catalyst bed.