摘要:
A material especially useful for the selective oxidation of hydrocarbons and other organic compounds includes a non-crystalline, porous inorganic oxide having at least 97 volume percent mesopores based on micropores and mesopores, and at least one catalytically active metal selected from the group consisting of one or more transition metal and one or more noble metal.
摘要:
The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction additive comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve. The molecular sieve is normally a large pore size zeolite such as USY or zeolite beta or an intermediate pore size zeolite such as ZSM-5. The metal is normally a metal of Period 3 of the Periodic Table, preferably zinc or vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
摘要:
The invention relates to an ordered mesoporous or mesostructured compound comprising a mineral phase of aluminium in which at least partially crystalline particles of a cerium, titanium or zirconium compound are dispersed. The inventive compound is characterised in that the chemical consistency thereof is such that the heterogeneity domains are at most 100 nm2 The invention also relates to the aforementioned ordered mesoporous or mesostructured compound which comprises at least one element M in solid solution in said particles. Moreover, the invention relates to the methods of preparing said ordered mesoporous or mesostructured compounds. The inventive materials can be used, for example, in the field of catalysis.
摘要:
The inversion relates to an aldehyde conversion method comprising putting an aldehyde into contact with oxygenated water and with a catalyst, under oxidation conditions, wherein the catalyst is a molecular sieve with pores of a diameter of at least 0.52 nm and has an empirical formula in a calcined and dehydrated form of (SnxTiySi1−x−y−zGez) O2wherein x is a molar fraction of the tin and has a value between 0.001 and 0.1; y is a molar fraction of titanium and has a value from zero to 0.1; and z is the molar fraction molar of the germanium and has a value from zero to 0.08.
摘要翻译:反转涉及醛转化方法,其包括在氧化条件下将醛与含氧水和催化剂接触,其中催化剂是直径为至少0.52nm的孔的分子筛,并且具有经验式 煅烧和脱水形式的<?in-line-formula description =“In-line Formulas”end =“lead”?(Sn x x Ti x Si x Si α-in-line-formula description =“In-line Formulas”end =“tail”?>其中x(x,y) 是锡的摩尔分数,其值在0.001和0.1之间; y是钛的摩尔分数,其值为0至0.1; z是锗的摩尔分数摩尔,其值为零至0.08。
摘要:
Mesoporous hexagonal, cubic, lamellar, wormhole, or cellular foam aluminosilicates, gallosilicates and titanosilicates derived from protozeolitic seeds using an ionic structure directing agent are described. The silicon and aluminum, gallium or titanium centers in the structures are stable so that the framework of the structure does not collapse when heated in the presence of water or water vapor (steam). The steam stable compositions can be used as catalysts for hydrocarbon conversions, including the fluidized bed catalytic cracking and the hydrocracking of petroleum oils, and other reactions of organic compounds.
摘要:
The sulfur content of liquid cracking products, especially the cracked gasoline, of the catalytic cracking process is reduced by the use of a sulfur reduction additive comprising a porous molecular sieve which contains a metal in an oxidation state above zero within the interior of the pore structure of the sieve. The molecular sieve is normally a large pore size zeolite such as USY or zeolite beta or an intermediate pore size zeolite such as ZSM-5. The metal is normally a metal of Period 4 of the Periodic Table, preferably zinc or vanadium. The sulfur reduction catalyst may be used in the form of a separate particle additive or as a component of an integrated cracking/sulfur reduction catalyst.
摘要:
Crystalline inorganic oxide compositions having regular wormhole-like channels are described. The formation of the mesoporous composition is accomplished by hydrogen bonding between a neutral amine template in water and a water miscible organic solvent and a neutral inorganic oxide precursor, wherein there is an excess of an alkanol or water used to dissolve the template. The template can be removed and recycled.
摘要:
Solid mesoporous crystalline composition of a pyrophosphate-phosphate of a tetravalent metal, with a high surface area and narrow distribution of the mesopores, having formula (I):M(P.sub.2 O.sub.7).sub.1-z (HPO.sub.4).sub.2z (I)wherein: M is a tetravalent metal and z varies from 0.05 to 0.25.The process for its production is described together with its uses.
摘要翻译:具有式(I):M(P 2 O 7)1-z(HPO 4)2 z(I)的具有高表面积和中孔分布较窄的四价金属焦磷酸盐 - 磷酸盐的固体介孔结晶组合物其中:M为 四价金属和z在0.05至0.25之间变化。 描述其生产过程及其用途。
摘要:
This invention relates to use of synthetic layered material MCM-56 as a sorbent and as a catalyst component in catalytic conversion of organic compounds. Examples of sorbent use include rapid sorption of hydrocarbons and separating at least one hydrocarbon component from a mixture of hydrocarbon components having differential sorption characteristics with respect to MCM-56. Examples of catalytic use include acid catalyzed reactions, such as cracking, aromatic compound alkylation, and isoalkane alkylation.
摘要:
There is provided a catalyst comprising a heteropoly acid, such as phosphotungstic acid, supported on a mesoporous crystalline material, such as M41S. A particular form of this M41S support is designated as MCM-41. There is also provided a method for preparing this catalyst by impregnating the heteropoly acid on the support. There is also provided a process for using this catalyst to catalyze acid catalyzed reactions, such as the isomerization of paraffins and the alkylation of aromatics.