Abstract:
PROBLEM TO BE SOLVED: To provide an adsorbent for removing carbon monoxide from hydrocarbon stream, a method for removing an adsorbent, and a method for removing carbon monoxide.SOLUTION: The absorbent includes copper, zinc, and aluminum oxide and contains 10 to 70 mass% of copper on the basis of copper(II) oxide, 10 to 70 mass% of zinc on the basis of zinc oxide, and 0.1 to 50 mass% of aluminum on the basis of aluminum oxide, and copper is contained in form of metal copper and copper oxide and the ratio of copper in the entire copper is adjusted to be 10 to 40 mass%.
Abstract:
The present invention relates to a shell catalyst, comprising an active metal selected from the group of ruthenium, rhodium, palladium, platinum, and mixtures thereof, applied to a carrier material comprising silicon dioxide, wherein the pore volume of the carrier material is 0.6 to 1.0 ml/g, determined by Hg porosimetry, the BET surface area is 280 to 500 m2/g, and at least 90% of the pores present comprise a diameter from 6 to 12 nm, to a method for producing said shell catalyst, to a method for hydrogenating an organic compound comprising at least one hydrogenatable group using the shell catalyst, and to the use of the shell catalyst for hydrogenating an organic compound.
Abstract:
The present invention relates to a catalyst for the conversion of oxygenates to olefins, the catalyst containing one or more zeolites of an MFI-, MEL- and/or MWW-type structure and particles of one or more metal oxides, wherein the one or more zeolites of the MFI-, MEL- and/or MWW-type structure contain one or more alkaline earth metals, and the particles of the one or more metal oxides contain phosphorus, the phosphorus being at least partially present as an oxide, and the one or more alkaline earth metals being selected from the group consisting of Mg, Ca, Sr, Ba and combinations of two or more of these elements. The invention also relates to the production and use of said catalyst and to a method for the conversion of oxygenates to olefins using the catalyst.
Abstract:
The invention relates to a method for producing aromatic amines by the catalytic hydrogenation of the corresponding aromatic nitro compound, characterized by using a copper-containing catalyst with a SiO2-containing carrier, the SiO2 being produced by wet grinding and subsequent spray drying.
Abstract:
The present invention relates to a process for isomerizing linear alpha-olefins having from 4 to 8 carbon atoms over a heterogeneous catalyst, wherein the catalyst comprises a hydrogenation metal and a selectivity promoter selected from among selenium and tellurium on a support, and also a process for preparing 1-olefins by a metathesis reaction of 2-olefins with ethene, wherein the 2-olefins are prepared by the above mentioned isomerization process.
Abstract:
The present invention relates to A process for the production of a molding, comprising (I) providing a zeolitic material; (II) mixing the zeolitic material provided in step (I) with one or more binders; (III) kneading of the mixture obtained in step (II); (IV) molding of the kneaded mixture obtained in step (III) to obtain one or more moldings; (V) drying of the one or more moldings obtained in step (IV); and (VI) calcining of the dried molding obtained in step (V); wherein the zeolitic material provided in step (I) displays a water adsorption ranging from 1 to 15 wt.-% when exposed to a relative humidity of 85%, as well as to a molding obtainable or obtained according to the inventive process in addition to a molding per se and to their respective use.
Abstract:
Procedimiento para la fabricación de un material estructural metalorgánico poroso que comprende la etapa de reacción de una mezcla de reacción en la fase líquida de por lo menos un compuesto de cobre con por lo menos un compuesto orgánico por lo menos bidentado que puede unirse de manera coordinada al cobre, en presencia de un disolvente no acuoso, en el que el por lo menos un compuesto orgánico por lo menos bidentado es un ácido trio tetracarboxílico, produciéndose la reacción bajo presión atmosférica en un intervalo de 90 °C a 150 °C, el compuesto de cobre es uno diferente a nitrato de cobre (II) y seleccionándose el disolvente no acuoso de entre el grupo consistente en alcanol C4-10, dimetilsulfóxido (DMSO), N,N-dimetilformamida (DMF), N,N-dietilformamida (DEF), N,N-dimetilacetamida (DMAc), acetonitrilo, tolueno, dioxano, clorobenceno, metiletilcetona (MEK), piridina, alcano C7-200 dado el caso halogenado, sulfolano, alquilenpolioles, como etilenglicol, polialquilenpolioles, como polietilenglicol, glicerina, N-metilpirrolidona (NMP), gamma-butirolactona, alcoholes alicíclicos como ciclohexanol, cetonas, como acetona o acetilacetona, ciclocetonas, como ciclohexanona, sulfoles o mezclas de ellos .
Abstract:
Unsaturated hydrocarbons are hydrogenated over catalysts which comprise copper and zinc and whose active composition, in unreduced form, consists essentially of from 10 to 95% by weight of copper oxide, calculated as copper(II) oxide (CuO), from 5 to 90% by weight of zinc oxide (ZnO), optionally from 0.1 to 50% by weight of zirconium dioxide (ZrO2) and optionally from 0.1% by weight to 50% by weight of Al2O3, the proportions by weight adding up to 100% by weight.
Abstract:
The present invention relates to a process for isomerizing linear alpha-olefins having from 4 to 8 carbon atoms over a heterogeneous catalyst, wherein the catalyst comprises a hydrogenation metal and a selectivity promoter selected from among selenium and tellurium on a support, and also a process for preparing 1-olefins by a metathesis reaction of 2-olefins with ethene, wherein the 2-olefins are prepared by the above mentioned isomerization process.
Abstract:
The invention relates to a process for preparing a catalyst support, in which zirconium dioxide powder is mixed with a binder, if desired a pore former, if desired an acid, water and, if desired, further additives to give a kneadable composition and the composition is homogenized, shaped to produce shaped bodies, dried and calcined, wherein the binder is a monomeric, oligomeric or polymeric organosilicon compound. Suitable binders are monomeric, oligomeric or polymeric silanes, alkoxysilanes, aryloxysilanes, acryloxysilanes, oximinosilanes, halosilanes, aminoxysilanes, aminosilanes, amidosilanes, silazanes or silicones. The invention also provides the catalyst support which has been prepared in this way, a catalyst comprising the support and its use as dehydrogenation catalyst.