Abstract:
A catalyst which is based upon an iron oxide and a compound of a lanthanide, of which iron oxide at least a portion is made by a process which involves heat decomposition of an iron halide, the lanthanide being in a quantity in the range of from 0.07 to 0.15 mole per mole iron oxide present in the catalyst, calculated as Fe2O3; a process for the preparation of the catalyst; a process for the dehydrogenation of an alkylaromatic compound which process involves contacting a feed containing the alkylaromatic compound with the catalyst; and a method of using an alkenylaromatic compound for making polymers or copolymers, in which method the alkenylaromatic compound has been prepared by the dehydrogenation process.
Abstract translation:一种催化剂,其基于氧化铁和镧系化合物,其中氧化铁至少一部分通过涉及卤化铁的热分解的方法制备,所述镧系元素的量为0.07 至0.15摩尔/摩尔氧化铁存在于催化剂中,以Fe 2 O 3计算; 催化剂的制备方法; 烷基芳族化合物脱氢的方法,该方法包括使含有烷基芳族化合物的进料与催化剂接触; 以及使用链烯基芳族化合物制造聚合物或共聚物的方法,其中通过脱氢方法制备了链烯基芳族化合物。
Abstract:
A process for the production of an olefin from a hydrocarbon, which process comprises: partially combusting the hydrocarbon and an oxygen-containing gas in the presence of a catalyst, characterised in that the catalyst comprises platinum and at least one further metal, said further metal being a Group IIIA, Group IVA, VA or a transition metal; wherein said catalyst is: a) not a platinum catalyst consisting essentially of platinum modified with Sn, Cu or mixtures thereof, and b) not a platinum catalyst consisting essentially of platinum modified with Sb or a mixture of Sb and Sn.
Abstract:
A process for preparing light olefins from corresponding paraffins consists of reacting said paraffins in a reactor, operating at a temperature of between 450 and 800null C., a pressure of between 0.1 and 3 atm absolute and a GHSV of between 100 and 10000 hnull1, with a catalytic system containing gallium, platinum, possibly one or more alkaline or alkaline-earth metals, and a support consisting of alumina in delta or theta phase or in deltanulltheta or thetanullalpha or deltanullthetanullalpha mixed phase, modified with silica, the gallium, expressed as Ga2O3, being in a quantity of between 0.1 and 33.6 wt %, the platinum being in a quantity of between 1 and 99 ppm, the alkaline or alkaline-earth metals, expressed as oxide, being in a quantity of between 0 and 5 wt %, and the silica being in a quantity of between 0.08 and 3 wt %, the rest to 100% being alumina, and regenerating said catalytic system in a regenerator by burning off the coke which has deposited on its surface, without subsequently reducing it.
Abstract translation:从相应的链烷烃制备轻质烯烃的方法包括在反应器中使所述链烷烃反应,在450-800℃的温度下操作,绝对压力为0.1至3atm,GHSV为100至10000h- 1,含有镓,铂,可能一种或多种碱金属或碱土金属的催化体系,以及由δ或θ相中的氧化铝或δ+θ或θ+α或δ+θ+α混合相组成的载体 ,用二氧化硅改性,以Ga 2 O 3表示的镓的量为0.1至33.6重量%,铂的量为1至99ppm,碱或碱土金属以氧化物表示,为 其量为0至5重量%,二氧化硅的量为0.08至3重量%,其余为100重量%的氧化铝,并通过烧掉已沉积的焦炭在再生器中再生所述催化体系 在其表面,没有随后减少 把它。
Abstract:
A process in which a hydrocarbon feedstock containing n-butane is selectively dehydrogenated to a product containing butenes. A catalyst suitable for the selective dehydrogenation of a feedstock containing n-butane to provide a product containing butenes. A method for producing a catalyst suitable for the selective dehydrogenation of a feedstock containing n-butane to provide a product containing butenes.
Abstract:
Process for the catalytic dehydrogenation of a C2 or C3 alkyl aromatic in which a feedstock containing the alkyl aromatic and steam is supplied into the inlet of a tubular reactor containing a dehydrogenation catalyst. Within the reactor, the feedstock flows through at least a portion of the reactor along a spiral flow path extending longitudinally of the reactor. The resulting vinyl aromatic product is then recovered from a downstream or outlet section of the reactor. The spiral flow path through which the feedstock is passed is located at least adjacent the inlet side of the reactor and at least a portion of the spiral flow path contains a particulate dehydrogenation catalyst. The spiral flow path may extend throughout a major portion of the elongated tubular reactor and may contain a particulate dehydrogenation catalyst in a substantial portion there. The feedstock containing the alkyl aromatic and steam is supplied into a plurality of tubular reactors located within the interior of a dehydrogenation reactor vessel and is arranged in a parallel relationship in which the tubular reactors are spaced laterally from one another and from the interior wall of the reaction vessel.
Abstract:
Lower alkenes of from 2 to 5 carbon atoms, such as propene, are produced by the vapor phase catalytic oxidative dehyrogenation of lower alkane, such as propane, using a mixed metal oxide catalyst of formula (1) as decribed, containing manganese and at least one additional metal as essential elements, e.g., Mn1Sb0.15Ox, Mn1P0.2Ox, Mn1SO0.15W0.05Cr0.1Ox. The lower alkene may be further oxidatively dehydrogenated using a mixed metal oxide catalyst of formula (1), especially formula (2), as described, to produce a mixture of unsaturated aldehyde and unsaturated acid. The unsaturated aldehyde may be further oxidatively dehydrogenated in the vapor phase in the presence of mixed metal oxide catalyst of formula (1), especially formula (3).
Abstract:
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 null to about 30 null 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 0.3null to about 3.5null at 2null. 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.
Abstract translation: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。
Abstract:
Olefinically unsaturated hydrocarbons are prepared from corresponding paraffinic hydrocarbons, in particular propylene is prepared from propane, by dehydrogenation over a catalyst comprising an oxide of a transition metal of group IV B of the Periodic Table, eg. TiO2 or ZrO2, and possibly at least one element selected from among elements of transition group VIII, eg. palladium, platinum or rhodium, and/or an element of transition group VI, eg. chromium, molybdenum or tungsten, and/or rhenium and/or tin and possibly a compound of an alkali metal or alkaline earth metal, a compound of main group III or transition group III or zinc.
Abstract translation:由相应的链烷烃制备烯属不饱和烃,特别是丙烯由丙烷制备,通过在包含元素周期表IVB族过渡金属的氧化物的催化剂上脱氢制备。 TiO 2或ZrO 2,以及可能的至少一种选自过渡族VIII的元素的元素,例如, 钯,铂或铑,和/或过渡族VI的元素,例如。 铬,钼或钨,和/或铼和/或锡以及可能的碱金属或碱土金属的化合物,主要III族或过渡族III的化合物或锌。
Abstract:
A catalyst bed is made of a monolith having a plurality of pores extending through the monolith, the pores forming tortuous flow paths through the monolith. The tortuous flow paths are obtained by modifying the monolith channels with turbulence-inducing objects or means. Catalyst is disposed on the wall surfaces formed by the pores. Reactants are passed through the tortuous flow paths creating turbulent flow thereby increasing the contact of the reactants with the catalyst on the wall surfaces and the mixing across the reactant stream.
Abstract:
A radial reactor for utilization for catalytic reactions of gaseous or liquid feed streams including a vertical, annular catalyst bed, wherein the material contained within the catalyst bed includes an active catalyst material, contained within an outer ring-shaped, vertical layer of the catalyst bed, and an inert material, contained within an inner ring-shaped, vertical layer of the catalyst bed.