SOLID SHAPED BODY AND USE OF THE SOLID SHAPED BODY

    公开(公告)号:WO2022023193A1

    公开(公告)日:2022-02-03

    申请号:PCT/EP2021/070653

    申请日:2021-07-23

    Applicant: BASF SE

    Abstract: The invention relates to a solid shaped body (1) having a cylindrical form with a first base area (3), a second base area (5) and a lateral area (7), wherein the solid shaped body (1) comprises a first number of flutes (9) with at least one flute radius (13) in the lateral area (7), each extending from the first base area (3) to the second base area (5), and a second number of openings (11), each extending from the first base area (3) to the second base area (5), wherein the solid shaped body (1) has a cross-sectional area in form of a rholoid (2). The invention further relates to a use of the solid shaped body (1).

    OPTIMIZATION OF GEOMETRY OF SHAPED BODY AND MANUFACTURING TOOLS

    公开(公告)号:WO2021105277A1

    公开(公告)日:2021-06-03

    申请号:PCT/EP2020/083493

    申请日:2020-11-26

    Applicant: BASF SE

    Abstract: A computer-implemented method (110) for designing at least one shaped body (112), a computer-implemented method (138) for designing a manufacturing process for manufacturing at least one shaped body (112), a designing system (152) for designing at least one shaped body (112) and a manufacture-designing system for designing a manufacturing process for manufacturing at least one shaped body (112). The computer-implemented method (110) for designing at least one shaped body (112) comprises: a) retrieving, by using at least one interface (154), at least one set of target criteria for the shaped body (112); b) defining, by using at least one geometry defining unit (156), at least one seed geometry for the shaped body (112); c) generating, by using at least one parameter generating unit (158), a set of parameters comprising at least one geometry parameter of the seed geometry; d) simulating, by using at least one simulation unit (160), the shaped body by varying values of the set of parameters and by corn-paring simulated criteria for these values with the set of target criteria, thereby generating at least one adapted set of parameters for which the target criteria are fulfilled at least within predetermined tolerances; and e) determining, by using at least one lead candidate geometry defining unit (162), at least one lead candidate geometry of the at least one shaped body (112) from the adapted set of parameters.

    OPTIMIZATION OF GEOMETRY OF SHAPED BODY AND MANUFACTURING TOOLS

    公开(公告)号:WO2021105270A1

    公开(公告)日:2021-06-03

    申请号:PCT/EP2020/083483

    申请日:2020-11-26

    Applicant: BASF SE

    Abstract: A computer-implemented method (124) for designing at least one shaping tool (126), a computer-implemented method (138) for designing a manufacturing process for manufacturing at least one shaped body (112), a shaping tool designing system (170) for designing at least one shaped body (112) and a manufacture-designing system for designing a manufacturing process for manufacturing at least one shaped body (112). The computer-implemented method (124) for designing at least one shaped body (112) comprises: i) retrieving, by using at least one interface (172), at least one set of shaping target criteria for the shaping tool (126); ii) defining, by using at least one geometry defining unit (174), at least one starting geometry for the shaping tool (126); ill) generating, by using at least one shaping parameter generating unit (176), a set of shaping parameters comprising at least one shape geometry parameter of the starting geometry; iv) simulating, by using at least one simulation unit (178), a shaping process using the shaping tool (126) by varying values of the set of shaping parameters and by comparing simu- lated shaping properties for these values with the set of shaping target criteria, thereby generating at least one shaping geometry with an adapted set of shaping parameters for which the shaping target criteria are fulfilled at least within predetermined tolerances; and v) determining, by using at least one shaping tool geometry defining unit (180), at least one geometry of the at least one shaping tool (126) from the adapted set of shaping parameters.

    CATALYST FOR PRODUCING ETHYLENE OXIDE BY GAS-PHASE OXIDATION

    公开(公告)号:WO2020078657A1

    公开(公告)日:2020-04-23

    申请号:PCT/EP2019/075187

    申请日:2019-09-19

    Applicant: BASF SE

    Abstract: A shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene, comprising silver deposited on a porous refractory support, the shaped catalyst body having a first face side surface, a second face side surface and a circumferential surface, characterized by a content of at least 20 wt.-% of silver, relative to the total weight of the shaped catalyst body; a multilobe structure; a plurality of passageways extending from the first face side surface to the second face side surface, outer passageways being arranged around a central passageway with one outer passageway being assigned to each lobe, wherein neighboring outer passageways are arranged essentially equidistantly to each other and the outer passageways are arranged essentially equidistantly to the central passageway; a minimum wall thickness A between two neighboring passageways in the range of 0.6 to 1.3 mm; a minimum wall thickness B between each outer passageway and the circumferential surface in the range of 1.1 to 1.8 mm; and a BET surface area in the range of 1.6 to 3.0 m 2 /g. The shaped catalyst bodies allow for a favorable balance between mechanical stability, pressure drop and selectivity. The invention also relates to a process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising reacting ethylene and oxygen in the presence of a shaped catalyst body as defined above. The invention further relates to a process for preparing a shaped catalyst body as above, comprising i) impregnating a refractory support having a BET surface area in the range of 1.4 to 2.5 m 2 /g with a silver impregnation solution; and ii) subjecting the impregnated refractory support to a calcination process; wherein steps i) and ii) are optionally repeated.

    SOLID SHAPED BODY AND USE OF THE SOLID SHAPED BODY

    公开(公告)号:WO2022023194A1

    公开(公告)日:2022-02-03

    申请号:PCT/EP2021/070655

    申请日:2021-07-23

    Applicant: BASF SE

    Abstract: The invention relates to a solid shaped body (1) having a cylindrical form with a first base area (3), a second base area (5) and a lateral area (7), wherein the solid shaped body (1) comprises a first number of flutes (9) in the lateral area (7), each extending from the first base area (3) to the second base area (5), and a second number of openings (11), each extending from the first base area (3) to the second base area (5), and wherein the second number of openings (11) is in a range from 2 to 8, the second number of openings (11) is larger than the first number of flutes (9) and wherein a ratio between a first radius (13) of at least one flute (9) and a second radius (15) of at least one opening (11) is at least 1.15. The invention further relates to a use of the solid shaped body (1).

    CATALYST FOR PRODUCING ETHYLENE OXIDE BY GAS-PHASE OXIDATION

    公开(公告)号:WO2020108872A1

    公开(公告)日:2020-06-04

    申请号:PCT/EP2019/078696

    申请日:2019-10-22

    Applicant: BASF SE

    Abstract: A shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene, comprising silver deposited on a porous refractory support, the shaped catalyst body having a first face side surface, a second face side surface and a circumferential surface, characterized by a content of at least 20 wt.-% of silver, relative to the total weight of the shaped catalyst body; a cylinder structure with n void spaces running in the cylinder periphery along the cylinder height to form an n-lobed structure, wherein n is 2, 3, 4, 5 or 6; n passageways extending from the first face side surface to the second face side surface, each passageway being assigned to one lobe, wherein neighboring passageways are arranged essentially equidistantly to each other; an n-fold rotational symmetry; a shortest distance A between two neighboring passageways in the range of 1.0 to 2.0 mm; a shortest distance B between each passageway and the circumferential surface in the range of 1.1 to 2.0 mm; and a BET surface area in the range of 1.6 to 3.0 m 2 /g. The shaped catalyst bodies allow for a favorable balance between mechanical stability, pressure drop and selectivity. The invention further relates to a reactor tube packed with a plurality of shaped catalyst bodies as defined above, wherein the ratio of the diameter of the circumscribed circle d cc of the shaped catalyst bodies to the inner diameter of the reactor tube is in the range of 0.15 to 0.35. The invention also relates to a process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising reacting ethylene and oxygen in the presence of a shaped catalyst body as defined above. The invention further relates to a process for preparing a shaped catalyst body as defined above, comprising i) impregnating a refractory support having a BET surface area in the range of 1.4 to 2.5 m 2 /g with a silver impregnation solution; and ii) subjecting the impregnated refractory support to a calcination process; wherein steps i) and ii) are optionally repeated.

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