HYDROGENATING CATALYST, HYDROGENATING METHOD AND HYDROTREATMENT OF LIGHT OIL

    公开(公告)号:JP2001029792A

    公开(公告)日:2001-02-06

    申请号:JP32706999

    申请日:1999-11-17

    Abstract: PROBLEM TO BE SOLVED: To obtain a hydrogenating catalyst having high hydrogenating function for an aromatic or heterocyclic ring, resistance against a sulfur compd. and a nitrogen compd. and long life by supporting palladium and platinum on an ultra-stabilized Y-type zeolite carrier modified by heavy rare earth elements. SOLUTION: As a carrier for supporting Pd and Pt components, an ultra- stabilized Y-type zeolite (carrier zeolite) modified by heavy rare earth elements is used. The SiO2/Al2O3 molar ratio of this carrier zeolite is about 5.0-1,000, pref., about 10-20 and, as the heavy rare earth elements, there are four elements, that is, ytterbium(Yb), gadolinium(Gd), terbium(Tb) and dysprosium(Dy). In order to modify the ultra-stabilized Y-type zeolite, at least one element selected from these heavy rare earth elements is used. Only one of palladium and platinum may be supported on the carrier zeolite but both of them are pref. supported thereon.

    COMPOSITION-CHANGED ALLOPHANE BACTERICIDAL AGENT AND BACTERICIDAL TREATMENT

    公开(公告)号:JPH10130111A

    公开(公告)日:1998-05-19

    申请号:JP30097496

    申请日:1996-10-25

    Abstract: PROBLEM TO BE SOLVED: To obtain a bactericidal agent which can simply and safely killing bacteria in water by using a specific allophane as an active ingredient. SOLUTION: This bactericide contains, as an active ingredient, a silver- containing allophane prepared by substituting the H atom in the OH group in allophane represented by the formula ((a), (b) and (c) are each mole number, H binds to the oxygen in the structure to form OH, a/b=1-2; c/b=2.5-3). In addition, a part of OH on the surface of allophane particles may be substituted with a phosphoric acid group and a part of H of the OH may be substituted with silver ion, namely may contain a phosphorus and silver-containing allophane. This composition-modified allophane bactericide is brought into contact with water or a moisture-containing gas to be treated whereby the water or moisture-containing gas is disinfected by the surface of the bactericide.

    PREPARATION OF HYDROTREATING CATALYST FOR HYDROCARBON OIL

    公开(公告)号:JPH04114746A

    公开(公告)日:1992-04-15

    申请号:JP23059790

    申请日:1990-09-03

    Abstract: PURPOSE:To obtain a catalyst capable of keeping stable activity over a long period of time by using zeolite having one or more metal atom in its cage and allyl mercaptan or thioglycolic acid being a sulfiding agent. CONSTITUTION:Zeolite containing one or more metal atom of the Group V1a of the Periodic Table in its cage and alumina are kneaded and molded. Subsequently, the molded one is dried to be baked and impregnated with allyl mercaptan or thioglycolic acid in an amount necessary for converting said metal atom to oxide and dried to obtain in a hydrogenating catalyst for hydrocarbon oil. As the alumina source, there are gamma-alumina or alumina hydrate. As a metal of the Group V1a of the Periodic Table, there are molybdenum or tungsten but molybdenum is proper from the aspect of catalytic activity or cost. When molybdenum is introduced into the cage of zeolite to form molybdenum disulfide or a precursor thereof in the cage, the flocculation of molybdenum disulfide during the hydrotreatment of hydrocarbon oil can be prevented and activity stable over a long period of time can be kept.

    CATALYST COMPOSITION FOR HYDROGENATING AROMATIC HYDROCARBON

    公开(公告)号:JPH11309372A

    公开(公告)日:1999-11-09

    申请号:JP13468098

    申请日:1998-04-28

    Abstract: PROBLEM TO BE SOLVED: To have resistance to sulfur compounds and to reduce the deterioration of activity by supporting a noble metal selected from the group VIII noble metals in the periodic table on an almina-boric carrier. SOLUTION: The component of a noble metal such as ruthenium, rhodium, palladium, osmium, and platinum selected from the group III noble metals in the periodic table is supported on an alumina-boria carrier produced by a method in which alumina or an alumina precursor is mixed with boric acid ammonium borate, or the like as boron compounds, and the mixture is molded, dried, and burned. In this way, its use in the hydrogenation of hydrocarbons contained in catalytic cracking oil, thermal cracking oil, direct distillation light oil, coker gas oil, hydrogenated light oil, desulfurized light oil, and or the like is made possible, resistance to sulfur compounds is exhibited, the activity deterioration is reduced, and the life is extended.

Patent Agency Ranking