Abstract:
본 발명은 2차원 판상소재에서 발생하는 문제 즉, 2차원 판상소재가 겹쳐짐에 따라 발생하는 단차 문제, 결함문제, 퍼짐문제 등을 해결할 수 있는 2차원 하이브리드 복합체 제조 방법에 관한 것이다. 본 발명은 「(a) 제1판상소재를 고상 또는 액상으로 준비하는 단계; (b) 상기 제1판상소재 보다 두께가 얇고 유연성이 있는 제2판상소재를 상기 제1판상소재와 혼합시키는 단계; (c) 고상 또는 액상의 결합재를 상기 제1·2판상소재와 혼합시켜 상기 제1·2판상소재가 일부 접촉하거나 상호 이격되도록 하는 단계; 및 (d) 상기 (a)단계 내지 (c)단계를 거쳐 형성된 복합체를 고상화시키는 단계; 를 포함하는 2차원 하이브리드 복합체 제조 방법」을 제공한다.
Abstract:
L 'invention porte sur un catalyseur comprenant un composant actif à base de molybdène et de potassium et un support à base d' hydroxyapatite, ainsi que sur un procédé de préparation dudit catalyseur et un procédé de production de méthyl mercaptan dans un procédé catalytique par réaction d' oxyde de carbone, de soufre et/ou de sulfure d'hydrogène et d 'hydrogène, comprenant l 'utilisation dudit catalyseur.
Abstract:
La presente invención pertenece al campo de preparación de catalizadores utilizados para la hidrodesulfuración de combustibles fósiles y proporciona una método para preparar catalizadores térmicamente estables y de bajo costo para la hidrodesulfuración de gasolina y diesel, con base en CoMo y NiMo altamente activos. El catalizador para hidrotratamiento de gasóleo o gasolina de la presente invención comprende un precursor que consiste de compuestos químicos obtenidos a partir de ácidos orgánicos y sales metálicas, y un soporte que contiene una zeolita tipo-Y ultraestable, útil en el hidrotratamiento del gasóleo pesado y/o de gasóleo cíclico ligero con altas conversiones.
Abstract:
Methods and systems for hydro processing heavy oil feed stocks to form an upgraded material involve the use of a well-dispersed metal sulfide catalyst (e.g., colloidal or molecular catalyst) dispersed within a heavy oil feedstock, a pre-coking hydro cracking reactor, a separator, and a coking reactor. The metal sulfide catalyst promotes upgrading reactions that reduce the quantity of asphaltenes or other coke forming precursors in the feedstock, increase hydrogen to carbon ratio in the upgraded material, and decrease boiling points of hydrocarbons in the upgraded material. The methods and systems can be used to upgrade vacuum tower bottoms and other low grade heavy oil feed stocks. The result is one or more of increased conversion level and yield, improved quality of upgraded hydrocarbons, reduced coke formation, reduced equipment fouling, processing of a wider range of lower quality feed stocks, and more efficient use of supported catalyst if used in combination with the metal sulfide catalyst, as compared to a conventional hydro cracking process or a conventional thermal coking process.
Abstract:
L'invention concerne une composition comprenant un mélange de sulfure de zinc (ZnS) et de sulfure de molybdène (MoS x ) dans lequel le ratio molaire Mo/Zn est compris entre 0,01 et 1,9. L'invention porte également sur son procédé de préparation ainsi que sur son application en photocatalyse et plus particulièrement sur son application en photocatalyse pour la production de dihydrogène à partir d'eau (H 2 O) et/ou de sulfure d'hydrogène (H 2 S) et/ou toute autre source de protons en présence d'une source émettant dans le spectre ultra-violet et/ou visible.
Abstract:
A process is provided in which a first hydrocarbon-containing composition is provided. The first hydrocarbon-containing composition contains hydrocarbons having a boiling range of from 25 °C to 538 °C and contains from 0.1 wt.% to 5 wt.% sulfur on an atomic basis. At least 40 wt.% of the sulfur, on an atomic sulfur basis, is contained in hydrocarbon compounds having a boiling point of less than 343°C, and at least 40 wt. % of the sulfur contained in hydrocarbon compounds having a boiling point of less than 343 °C in the first hydrocarbon-containing composition is contained in benzothiophenic compounds. The first hydrocarbon-containing composition is contacted with hydrogen and a catalyst containing a Column 6 metal at a temperature of 260 °C-425 °C to produce a second hydrocarbon-containing composition. The second hydrocarbon-containing composition is separated into fractions, one of the fractions being a heavy hydrocarbon fraction comprised of hydrocarbons having a boiling point of at least 343 °C. The heavy hydrocarbon fraction is contacted with a fluidizable cracking catalyst at a temperature of at least 500 °C.
Abstract:
A catalytic system characterized in that it comprises: a first catalyst, having a hydrogenating function, consisting of solid particles of which at least 95% by volume having an equivalent diameter smaller than 20 μm, containing one or more sulfides of metals of group VI and/or VIII B, possibly prepared starting from an oil- soluble precursor of the same; and a second catalyst, having a cracking function, consisting of solid particles of which at least 90% by volume having an equivalent diameter larger than 5 μm and smaller than 5 mm, containing an amorphous silico- aluminate and/or a crystalline silico-aluminate and/or an alumina, the equivalent average diameter of the solid particles of the second catalyst being greater than the equivalent average diameter of the solid particles of the first catalyst. Said catalytic system can be used in a process for the hydroconversion of heavy oils which comprises sending the heavy oil to a hydroprocessing step carried out in one or more slurry reactors, in the presence of hydrogen or a mixture of hydrogen and H 2 S, obtaining a stream of products in vapour or liquid-vapour phase, and extracting at the bottom, in continuous or discontinuous, a liquid stream containing non-converted products together with the two catalysts of said catalytic system, said liquid stream extracted then being separated into a clarified primary stream containing the first catalyst, which is at least partially recycled to the hydroprocessing step, and a stream rich in the second catalyst, which is regenerated in a regeneration step and at least partially recycled to the hydroprocessing step.
Abstract:
A process for treating a hydrocarbon-containing feed is provided in which a hydrocarbon-containing feed comprising at least 20 wt.% of heavy hydrocarbons is mixed with hydrogen and a catalyst to produce a hydrocarbon-containing product. The catalyst is prepared by mixing a first salt and a second salt in an aqueous mixture under anaerobic conditions at a temperature of from 15°C to 150°C, where the first salt comprises a cationic component in any non-zero oxidation state selected from the group consisting of Cu, Fe, Ag, Co, Mn, Ru, La, Ce, Pr, Sm, Eu, Yb, Lu, Dy, Ni, Zn, Bi, Sn, Pb, and Sb, and where the second salt comprises an anionic component selected from the group consisting of MoS 4 2- , WS 4 2- , SnS 4 4- , and SbS 4 3 .
Abstract:
The present invention provides methods of intercalating a catalyst promoter to form a catalyst composition suitable for converting syngas into alcohols, such as ethanol. Effective conditions for promoter intercalation are provided herein. This invention also provides novel compositions that can be characterized by interplanar spacings of the promoter within the catalyst composition.