SOLID SHAPED BODY AND USE OF THE SOLID SHAPED BODY

    公开(公告)号:US20230278021A1

    公开(公告)日:2023-09-07

    申请号:US18018048

    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).

    PROCESS FOR PRODUCING ETHYLENE OXIDE BY GAS-PHASE OXIDATION OF ETHYLENE

    公开(公告)号:US20210387958A1

    公开(公告)日:2021-12-16

    申请号:US17285780

    申请日:2019-09-19

    Applicant: BASF SE

    Abstract: A process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising: directing a feed comprising gaseous ethylene and gaseous oxygen through a packing of individual shaped catalyst bodies, under conditions conducive to obtain a reaction mixture containing at least 2.7 vol.-% of ethylene oxide, wherein each shaped catalyst body comprises silver deposited on a refractory support and is characterized by a content of at least 20 wt.-% of silver, relative to the total weight of the shaped catalyst body; a BET surface area in the range of 1.6 to 3.0 m2/g; a first face side surface, a second face side surface and a circumferential surface with a plurality of passageways extending from the first face side surface to the second face side surface; and a uniform multilobed cross-section; and a longest direct diffusion pathway d, with 2d being in the range of 0.7 to 2.4 mm, wherein the longest diffusion pathway d is defined as the shortest distance from the geometric surface of the shaped catalyst body to a point inside the structure of the shaped catalyst body for which point the shortest distance is the largest among all points. The process allows for increased activity and/or stability of the catalyst while maintaining or increasing selectivity at high productivity.

    SOLID SHAPED BODY AND USE OF THE SOLID SHAPED BODY

    公开(公告)号:US20230311108A1

    公开(公告)日:2023-10-05

    申请号:US18018049

    申请日:2021-07-23

    Applicant: BASF SE

    CPC classification number: B01J35/026 B01J35/023

    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).

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