51.
    发明专利
    未知

    公开(公告)号:ID24080A

    公开(公告)日:2000-07-06

    申请号:ID991538

    申请日:1998-06-05

    Applicant: BASF AG

    Abstract: A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.

    METHOD FOR REGENERATING A ZEOLITIC CATALYST

    公开(公告)号:CA2293351A1

    公开(公告)日:1998-12-10

    申请号:CA2293351

    申请日:1998-06-05

    Applicant: BASF AG

    Abstract: The invention relates to a method for regenerating a zeolitic catalyst, comprising the following steps: (I) at least one partially deactivated catalyst is heated to a temperature ranging from 250 to 600 ~C in an atmosphere containing less than 2 vol. % oxygen; (II) the catalyst is impinged upon by a gas flow at a temperature ranging from 250 to 800 ~C, preferably 350 to 600 ~C, said gas flow having an oxygen-delivering substance content or an oxygen content or a mixture of two or more thereof ranging from 0.1 to 4 vol. % and (III) the catalyst is impinged upon by a gas flow at a temperature ranging from 250 to 800 ~C, preferably 350 to 600 ~C, said gas flow having an oxygen-delivering substance content or an oxygen content or a mixture of two or more thereof ranging from over 4 to 100 vol. %.

    59.
    发明专利
    未知

    公开(公告)号:AT257408T

    公开(公告)日:2004-01-15

    申请号:AT98932130

    申请日:1998-06-05

    Applicant: BASF AG

    Abstract: A process for regenerating a zeolite catalyst comprises the following stages: (I) Heating a partially or completely deactivated catalyst to 250-600° C. in an atmosphere which contains less than 2% by volume of oxygen, (II) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from 0.1 to 4% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof, and (III) treating the catalyst at from 250 to 800° C., preferably from 350 to 600° C., with a gas stream which contains from more than 4 to 100% by volume of an oxygen-donating substance or of oxygen or of a mixture of two or more thereof.

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