50results about How to "Avoid agglomeration or even clogged pores" patented technology

The invention discloses a hydrogenation catalyst composition. The hydrogenation catalyst composition comprises hydrogenation active metal components, molecular sieves and amorphous silica-alumina, wherein the hydrogenation active metal components are mainly loaded on the molecular sieves; the molecular sieves are coated withamorphous silica-alumina; the hydrogenation active metal components account for 1-100% of the molecular sieves by weight in terms of oxide; the weight ratio of the molecular sieves to amorphous silica-alumina is (1:19)-(19:1). The hydrogenation catalyst composition enables the hydrogenation active metals to fully approach the acid centers of the molecular sieves, adjusts the hydrogenation and acid functions and is especially suitable for hydrogenation catalysts with relatively low requirements for acidity and relatively high requirements for hydrogenation properties.

The invention discloses a preparation method of a hydrogenation catalyst containing molecular sieves. The method comprises the following steps: adding a mixture of the molecular sieves containing hydrogenation active metal components and organic amines as well as organic alcohols and/or organic acids in the amorphous alumina gel forming process; carrying out aging after amorphous alumina gel forming is completed and then carrying out hydrothermal treatment, filtration, washing and drying; then carrying out forming, drying and roasting, thus obtaining the hydrogenation catalyst. By adopting the method, the molecular sieves and alumina can be organically combined together with good combination degree and dispersion degree, agglomeration and even blockage of the molecular sieves and amorphous alumina can be avoided, and meanwhile, the hydrogenation and cracking functions of the catalyst can be effectively adjusted and the usability of the catalyst can be improved. The catalyst prepared by the method is suitable for the shallow cracking and deep hydrogenation processes.

The invention discloses a preparation method of a catalyst carrier material containing a molecular sieve and amorphous silica-alumina. The preparation method comprises the following steps of adding a mixture of a molecular sieve and an organic amine into amorphous silica-alumina in gelling, after gelling of the amorphous silica-alumina, carrying out aging, then carrying out hydrothermal treatment and then carrying out filtration, washing and drying to obtain the catalyst carrier material. The preparation method realizes ordered arrangement and uniform deposition of silica-alumina on the surface of the molecular sieve, improves the binding strength of the molecular sieve and the silica-alumina, avoids agglomeration of the amorphous silica-alumina and the molecular sieve and channel blocking caused by the agglomeration, realizes mutual communication of channels of the silica-alumina and the molecular sieve, and fully develops synergism of the silica-alumina and the molecular sieve. The hydrothermal treatment is conducive to formation of regular mesoporouses in the amorphous silica-alumina so that catalyst use performances are improved. The catalyst carrier material can be used as an acidic component in a catalyst and is especially suitable for being used as a hydrocracking catalyst carrier.

The invention discloses a hydrogenation catalyst containing molecular sieves and amorphous silica-alumina. The hydrogenation catalyst comprises hydrogenation active metal components, the molecular sieves and amorphous silica-alumina, wherein the hydrogenation active metal components are mainly loaded on amorphous silica-alumina; the molecular sieves are coated with amorphous silica-alumina; the hydrogenation active metal components account for 3-100% of amorphous silica-alumina by weight in terms of oxide; the weight ratio of the molecular sieves to amorphous silica-alumina is (1:19)-(19:1). The hydrogenation catalyst has the beneficial effects that the hydrogenation catalyst fully isolates the hydrogenation active metals from the acid centers of the molecular sieves, adjusts the hydrogenation and acid functions and has relatively high requirements for acidity and relatively low requirements for hydrogenation properties.

The invention discloses a preparation method of a catalyst carrier material containing a molecular sieve and alumina. The preparation method comprises the following steps of adding a mixture of a molecular sieve and an organic amine, and an organic alcohol and/or an organic acid into amorphous alumina in gelling, after gelling of the amorphous alumina, carrying out aging, then carrying out hydrothermal treatment and then carrying out filtration, washing and drying to obtain the catalyst carrier material. The preparation method realizes ordered arrangement and uniform deposition of the alumina on the surface of the molecular sieve, improves the binding strength of the molecular sieve and the alumina, avoids agglomeration of the amorphous alumina and the molecular sieve and channel blocking caused by the agglomeration, realizes mutual communication of channels of the alumina and the molecular sieve, and fully develops synergism of the alumina and the molecular sieve. The hydrothermal treatment is conducive to formation of regular mesoporouses of the alumina so that catalyst use performances are improved. The catalyst carrier material can be used as an acidic component in a catalyst and is especially suitable for being used as a hydrocracking catalyst carrier.

The invention discloses a hydrogenation catalyst. The hydrogenation catalyst comprises hydrogenation active metal components, molecular sieves and amorphous alumina, wherein the hydrogenation active metal components are mainly loaded on the molecular sieves; the molecular sieves are coated withamorphous alumina; the hydrogenation active metal components account for 1-100% of the molecular sieves by weight in terms of oxide; the weight ratio of the molecular sieves to amorphous alumina is (1:19)-(19:1). The hydrogenation catalyst enables the hydrogenation active metals to fully approach the acid centers of the molecular sieves, adjusts the hydrogenation and acid functions and has relatively low requirements for acidity and relatively high requirements for hydrogenation properties.

The invention discloses a hydrogenation catalyst containing molecular sieves and amorphous silica-alumina. The hydrogenation catalyst comprises hydrogenation active metal components, the molecular sieves and amorphous silica-alumina, wherein the hydrogenation active metals are group VIII metals and group VIB metals; the group VIII metal components are mainly loaded on the molecular sieves; the group VIB metal components are mainly loaded on amorphous silica-alumina; the molecular sieves are coated with amorphous silica-alumina; the group VIII metals account for 1-12% of the molecular sieves by weight in terms of oxide; the group VIB metals account for 2-40% of amorphous silica-alumina by weight in terms of oxide; the weight ratio of the molecular sieves to amorphous silica-alumina is (1:19)-(19:1). The hydrogenation catalyst has the beneficial effects that the hydrogenation catalyst fully isolates the main hydrogenation active metals from the acid centers of the molecular sieves and adjusts the hydrogenation and acid functions; the acid cracking components of the molecular sieves give full play so that reactants carry out cracking reaction as much as possible before coming into contact with the hydrogenation active centers; the catalyst is especially suitable for the hydrocarbon hydro-upgrading process with moderate requirements for acidity and the hydrogenation function.

The invention discloses a method for preparing a hydrogenation catalyst. The method comprises the following steps: adding a mixture of molecular sieves containing hydrogenation active metal components and organic amines in the amorphous silica-alumina gel forming process; carrying out aging after amorphous silica-alumina gel forming is completed and then carrying out filtration, washing and drying; then carrying out forming, drying and roasting, thus obtaining the hydrogenation catalyst. By adopting the method, the molecular sieves and amorphous silica-alumina can be organically combined together with good combination degree and dispersion degree, agglomeration and even blockage of the molecular sieves and amorphous silica-alumina can be avoided, and meanwhile, the hydrogenation and cracking functions of the catalyst can be effectively adjusted and the usability of the catalyst can be improved. The catalyst prepared by the method is suitable for the shallow cracking and deep hydrogenation processes.

The invention discloses a preparation method of a hydrogenation catalyst containing molecular sieves and amorphous silica-alumina. The method comprises the following steps: adding a mixture of the molecular sieves containing hydrogenation active metal components and organic amines as well as organic alcohols and/or organic acids in the amorphous silica-alumina gel forming process; carrying out aging after amorphous silica-alumina gel forming is completed and then carrying out hydrothermal treatment, filtration, washing and drying; then carrying out forming, drying and roasting, thus obtaining the hydrogenation catalyst. By adopting the method, the molecular sieves and amorphous silica-alumina can be organically combined together, the catalyst with good combination degree and dispersion degree, agglomeration and even blockage of the molecular sieves and amorphous silica-alumina can be avoided, and meanwhile, the hydrogenation and cracking functions of the catalyst can be effectively adjusted and the usability of the catalyst can be improved. The catalyst prepared by the method is suitable for the shallow cracking and deep hydrogenation processes.

The invention discloses a preparation method of a catalyst carrier material containing a molecular sieve and amorphous silica-alumina. The preparation method comprises the following steps of adding a mixture of a molecular sieve and an organic amine, and an organic alcohol and/or an organic acid into amorphous silica-alumina in gelling, after gelling of the amorphous silica-alumina, carrying out aging, then carrying out hydrothermal treatment and then carrying out filtration, washing and drying to obtain the catalyst carrier material. The preparation method realizes ordered arrangement and uniform deposition of the silica-alumina on the surface of the molecular sieve, improves the binding strength of the molecular sieve and the silica-alumina, avoids agglomeration of the amorphous silica-alumina and the molecular sieve and channel blocking caused by the agglomeration, realizes mutual communication of channels of the silica-alumina and the molecular sieve, and fully develops synergism of the silica-alumina and the molecular sieve. The hydrothermal treatment is conducive to formation of regular mesoporouses in the amorphous silica-alumina so that catalyst use performances are improved. The catalyst carrier material can be used as an acidic component in a catalyst and is especially suitable for being used as a hydrocracking catalyst carrier.

The invention discloses a preparation method of a hydrogenation catalyst composition containing molecular sieves and amorphous silica-alumina. The method comprises the following steps: adding a mixture of the molecular sieves and organic amines as well as organic alcohols and/or organic acids before or in the process of preparing an amorphous silica-alumina-hydrogenation active metal oxide composite oxide by a coprecipitation method; carrying out aging after gel forming is completed and then carrying out hydrothermal treatment, filtration, washing and drying; then carrying out forming, drying and roasting, thus obtaining the hydrogenation catalyst composition. A catalyst prepared by the method can organically combine the molecular sieves and amorphous silica-alumina together with good combination degree and dispersion degree, agglomeration and even blockage of the molecular sieves and amorphous silica-alumina can be avoided, simultaneously control the distribution of hydrogenation components on various acidic components effectively and improve the usability of the catalyst. The hydrogenation catalyst composition prepared by the method is especially suitable for hydrogenation catalysts with relatively high requirements for acidity and relatively low requirements for hydrogenation properties.

The invention discloses a preparation method of catalyst carrier dry gel powder. The preparation method comprises the following steps of adding a mixture of a molecular sieve and an organic amine, and an organic alcohol and/or an organic acid into amorphous silica-alumina in gelling, after gelling of the amorphous silica-alumina, carrying out aging, and then carrying out filtration, washing and drying to obtain the catalyst carrier dry gel powder. The preparation method realizes ordered arrangement and uniform deposition of the silica-alumina on the surface of the molecular sieve, improves the binding strength of the molecular sieve and the silica-alumina, avoids agglomeration of the amorphous silica-alumina and the molecular sieve and channel blocking caused by the agglomeration, realizes mutual communication of channels of the silica-alumina and the molecular sieve, fully develops synergism of the silica-alumina and the molecular sieve, and improves catalyst use performances. The catalyst carrier dry gel powder can be used as an acidic component in a catalyst and is especially suitable for being used as a hydrocracking catalyst carrier.

The invention discloses a preparation method of a catalyst carrier material. The preparation method comprises the following steps of adding a mixture of a molecular sieve and an organic amine, and an organic alcohol and/or an organic acid into amorphous alumina in gelling, after gelling of the amorphous alumina, carrying out aging, and then carrying out filtration, washing and drying to obtain the catalyst carrier material. The preparation method realizes ordered arrangement and uniform deposition of the alumina on the surface of the molecular sieve, improves the binding strength of the molecular sieve and the alumina, avoids agglomeration of the amorphous alumina and the molecular sieve and channel blocking caused by the agglomeration, realizes mutual communication of channels of the alumina and the molecular sieve, fully develops synergism of the alumina and the molecular sieve, and improves catalyst use performances. The catalyst carrier material can be used as an acidic component in a catalyst and is especially suitable for being used as a hydrocracking catalyst carrier.