Abstract: The multiple zeolite catalyst is a catalytic composition used to convert C9+ alkylaromatic hydrocarbons to BTX, particularly commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VIB and Group VIII of the Periodic Table of the Elements. The two zeolites should have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt. % molybdenum. The transalkylation reaction may be conducted in one or more reactors with a fixed bed, moving bed, or radial flow reactor at 200-540° C., a pressure of 1.0-5.0 MPa, and liquid hourly space velocity of 1.0-5.0 per hour.

Abstract: The multiple zeolite catalyst is a catalytic composition used to convert C9+ alkylaromatic hydrocarbons to BTX, particularly commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VIB and Group VIII of the Periodic Table of the Elements. The two zeolites should have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt. % molybdenum. The transalkylation reaction may be conducted in one or more reactors with a fixed bed, moving bed, or radial flow reactor at 200-540° C., a pressure of 1.0-5.0 MPa, and liquid hourly space velocity of 1.0-5.0 per hour.

Abstract: The catalyst exhibiting hydrogen spillover effect relates to the composition of a catalyst exhibiting hydrogen spillover effect and to a process for preparing the catalyst. The catalyst has a reduced transition base metal of Group VIB or Group VIIIB, such as cobalt, nickel, molybdenum or tungsten, supported on a high porous carrier, such as saponite, the base metal being ion-exchanged with at least one precious metal of Group VIIIB. The process includes the steps of loading the base metal onto the support, reducing the base metal, preferably with H2 at 600° C., and thereafter ion-exchanging the precious metal with the base metal. Preferred examples of the catalyst include a saponite support loaded with about 10-20 wt % cobalt and about 0.1-1 wt % precious metal. The catalyst is optimized for reactions that occur in commercial processes at about 360-400° C., such as in hydrocracking.

Abstract: A method is provided for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni, Ce2O3, La2O3, Pt?ZrO2, Rh and Re catalyst having dual functionalities to achieve both combustion and steam reforming.

Abstract: A method for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni—Ce2O—Pt—Rh catalyst having dual functionalities to achieve both combustion and steam reforming.

Abstract: The catalyst exhibiting hydrogen spillover effect relates to the composition of a catalyst exhibiting hydrogen spillover effect and to a process for preparing the catalyst. The catalyst has a reduced transition base metal of Group VIB or Group VIIIB, such as cobalt, nickel, molybdenum or tungsten, supported on a high porous carrier, such as saponite, the base metal being ion-exchanged with at least one precious metal of Group VIIIB. The process includes the steps of loading the base metal onto the support, reducing the base metal, preferably with H2 at 600° C., and thereafter ion-exchanging the precious metal with the base metal. Preferred examples of the catalyst include a saponite support loaded with about 10-20 wt % cobalt and about 0.1-1 wt % precious metal. The catalyst is optimized for reactions that occur in commercial processes at about 360-400° C., such as in hydrocracking.

Abstract: A method is provided for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni,Ce2O3, La2O3, Pt?ZrO2, Rh and Re catalyst having dual functionalities to achieve both combustion and steam reforming.

Abstract: A method is provided for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni, Ce2O3, La2O3, Pt?ZrO2, Rh and Re catalyst having dual functionalities to achieve both combustion and steam reforming.

Abstract: The multiple zeolite catalyst is a catalytic composition used to convert C9+ alkylaromatic hydrocarbons to BTX, particularly commercially valuable xylenes. The catalyst is formed by mixing at least two zeolites selected from mordenite, beta zeolite, ZSM-5, ZSM-11, ZSM-12, ZSM-22, ZSM-23, MFI topology zeolite, NES topology zeolite, EU-1, MAPO-36, SAPO-5, SAPO-11, SAPO-34, and SAPO-41, and adding at least one metal component selected from Group VIB and Group VIII of the Periodic Table of the Elements. The two zeolites should have different physical and chemical characteristics, such as pore size and acidity. An exemplary catalyst includes mordenite, ZSM-5, and 3 wt. % molybdenum. The transalkylation reaction may be conducted in one or more reactors with a fixed bed, moving bed, or radial flow reactor at 200-540° C., a pressure of 1.0-5.0 MPa, and liquid hourly space velocity of 1.0-5.0 per hour.

Abstract: A method is provided for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni, Ce2O3, La2O3, Pt?ZrO2, Rh and Re catalyst having dual functionalities to achieve both combustion and steam reforming.

Abstract: A method for the thermo-neutral reforming of liquid hydrocarbon fuels which employs a Ni—Ce2O—Pt—Rh catalyst having dual functionalities to achieve both combustion and steam reforming.

Abstract: A process for producing 2,6-dimethylnaphthalene by subjecting 2,7-dimethylnaphthalene to an isomerization reaction, wherein the isomerization reaction is carried out by the use of a metallosilicate catalyst that comprises a metallosilicate having a main cavity defined by a ten-oxygen-membered ring, that is in the form of aggregates of fine crystals of the metallosilicate, the external surface area of the aggregate as calculated from t-plot analysis made in the nitrogen adsorption method being 25 m2/g or more, and that has been treated to inactivate acid centers present on the external surfaces of the fine crystals until the rate constant basic value N becomes 0.5 or less.

Abstract: A process for the synthesis of chemical industrial feedstock and high-octane fuel, wherein calcium phosphate which is controlled in the molar Ca/P ratio and/or one which contains an activating metal (M) at a molar (Ca+M)/P ratio of 1 to 2 is used as the catalyst and ethanol is used as the feedstock.

Abstract: A compound oxide X.sub.1 having the oxide composition CuO-ZnO-Cr.sub.2 O.sub.3 -Al.sub.2 O.sub.3 is physically admixed with a compound oxide X.sub.2 prepared by impregnating .gamma.-Al.sub.2 O.sub.3 with La(NO.sub.3).sub.3 and firing the same, to give a CuO-ZnO-Cr.sub.2 O.sub.3 -Al.sub.2 O.sub.3 -La.sub.2 O.sub.3 -based compound oxide with an La.sub.2 O.sub.3 addition level of 4% by weight. This compound oxide is reduced and packed into a reactor and a mixed gas composed of CO.sub.2 and H.sub.2 in a mole ratio of 1:3 is fed to the reactor, whereby methanol is obtained in high yield. The total conversion of CO.sub.2 amounts to 31.0%, the conversion to methanol being 22.9% (selectivity toward methanol 73.9%). When the pressure is 80 atmospheres, the conversion of CO.sub.2 amounts to 39%, the conversion to methanol being 29%.

Abstract: A process is disclosed for the production of high purity mullites. The process involves reacting a mixture of aluminum alkoxide and silicon alkoxide with an atomic ratio (weight) of Al/Si in the range of 2-7 in an aromatic hydrocarbon solvent at a temperature of 200.degree.-350.degree. C. and calcining the resulting reaction product at a temperature above 900.degree. C. The mullite product obtained finds wide application as a high temperature service structural material such as for automotive engines and turbines as well as a support for combustion catalyst.

Abstract: An exhaust gas purifying catalyst of this invention is a catalyst for mainly removing nitrogen oxides contained in exhaust gases, comprising: crystalline copper silicate expressed by the following composition formula;M.sub.n+m (Cu.sub.n Al.sub.m Si.sub.96-n-m O.sub.192).16H.sub.2 O, where M denotes one of sodium (Na) and potassium (K), and n+m<27. An exhaust gas purifying process of this invention employs the above-mentioned crystalline copper silicate catalyst. The exhaust gas purifying catalyst and the exhaust gas purifying process employing the same purify the nitrogen oxides (NOx) by facilitating the reaction between hydrocarbons (HC) and nitrogen oxides (NOx) contained in the exhaust gases more preferentially than the reaction between hydrocarbons (HC) and oxygen (O.sub.2) contained therein, thereby purifying the nitrogen oxides (NOx) and hydrocarbons (HC) at high efficiency.

Abstract: Lower olefinic hydrocarbons are produced from methanol in a high yield and with a high selectivity by bringing methanol into contact with a metallosilicate catalyst of the formula Si/Me wherein atomic ratio of Si/Me is 25-3200 and Me is Fe, Ni or Co at a temperature of 250.degree.-400.degree. C., a space velocity of 2000-8000 hr.sup.-1 and a pressure of atmospheric pressure -50 kg/cm.sup.2.

Abstract: Liquid hydrocarbon is prepared with high efficiency from hydrocarbon gas containing C.sub.2 -C.sub.5 paraffinic hydrocarbons and/or C.sub.2 -C.sub.5 olefinic hydrocarbons by bringing the gas into contact with a metallo-silicate catalyst having the following chemical composition in mol %:Si/Me:15-3500OH.sup.- /SiO.sub.2 :0.3-1.0H.sub.2 O/SiO.sub.2 :30-100R/(R+alkali metal):0.05-0.15NaCl/H.sub.2 O:0.01-0.06where R is quaternary alkylammonium cation,alkali metal is Na or K, Me is metal ion of B, Al, Ti, V, Cr, Mn, Fe, Co, Ni, Zn, Ga, Ge, Zr, Mo, W, La or Sc,and having the following acidity per g of catalyst:total acid 0.1-4.5 milli-equivalentstrong acid 0.05-2.0 milli-equivalentweak acid 0.05-3.0 milli-equivalent.

Abstract: Low molecular paraffin hydrocarbons can be converted to aromatic hydrocarbons at high yields of 20-30% in the presence of a metallo-silicate catalyst (Si/Me) (wherein atomic ratio of Si/Me is 25-3200 and Me is Al, Ga, Ti, Zr, Ge, La, Mn, Cr, Sc, V, Fe, W, Mo or Ni) modified with 0.25-1.5% by weight of platinum or gallium or a gallium-silicate catalyst (atomic ratio of Si/Ga is 25-3200).Since said catalyst is of high activity and reaction is carried out at low temperatures, reduction of selectivity of the catalyst caused by decomposition of aromatic hydrocarbons produced can be prevented.

Abstract: The present invention relates to a new method for supporting a metal and/or a metal oxide on a crystalline aluminosilicate zeolite. The resulting products are useful as catalysts and are designated ZKU-5, ZKU-6 and ZKU-7 (Zeolite Kyoto University catalyst). These catalysts display superior catalytic activity and selectivity and have a longer life than catalysts of the prior art.One method of the invention involves crystallizing a zeolite composition in the presence of both a conditioning agent and a crystal seed supporting the metal and/or metal oxide, the latter providing a nucleus for crystallization. The conditioning agent comprises the lower analogs of a tetraalkyl ammonium cation. The resulting crystal can support one or more metals or metal oxides or a mixture thereof.The disclosure compares the catalysts of the invention with a known, prior art catalyst, namely ZSM-34.