초록 ▼

A method, and a reactor, for hydroprocessing a hydrocarbon feed stream through multistage moving catalyst beds contained within a single onstream reactor vessel, with separate catalyst addition and withdrawal systems for each of the multistages of moving catalyst beds. The reactor contains two or mo

A method, and a reactor, for hydroprocessing a hydrocarbon feed stream through multistage moving catalyst beds contained within a single onstream reactor vessel, with separate catalyst addition and withdrawal systems for each of the multistages of moving catalyst beds. The reactor contains two or more different and distinct moving catalyst beds for any hydroprocessing application. The method includes serially passing, without leaving the reactor vessel, at least a partially treated hydrocarbon stream from one hydroconversion reaction zone containing a moving catalyst bed with a first set of catalytic characteristics to another hydroconversion reaction zone containing a moving catalyst bed with a second set of catalytic characteristics that differ in catalytic abilities from the first set of catalytic characteristics.

대표청구항 ▼

[ I claim:] [1.] A reactor comprising a reactor vessel having an internal cylindrical wall with an internal reactor cylindrical wall diameter; a first catalyst bed support means coupled to and supported by said internal cylindrical wall of said reactor vessel such as to essentially entirely span acr

[ I claim:] [1.] A reactor comprising a reactor vessel having an internal cylindrical wall with an internal reactor cylindrical wall diameter; a first catalyst bed support means coupled to and supported by said internal cylindrical wall of said reactor vessel such as to essentially entirely span across said internal reactor cylindrical wall diameter, for allowing a hydrocarbon feed stream to pass therethrough while preventing catalyst particles from a first moving bed of substantially packed catalyst to exit therethrough; a first moving bed of substantially packed catalyst supported by said first catalyst bed support means in a first hydroconversion reaction zone and having a first physical and/or catalytic properties; a first catalyst outlet means, communicating through said internal cylindrical wall of said reactor vessel with said first moving bed of substantially packed catalyst supported by said first catalyst bed support means, for withdrawing a first generally spent catalyst from a first hydroconversion reaction zone; a first catalyst inlet means, communicating through said internal cylindrical wall of said reactor vessel with said first moving bed of substantially packed catalyst supported by said first catalyst bed support means, for introducing a first generally fresh catalyst into a first hydroconversion reaction zone; a second catalyst bed support means coupled to and supported by said internal cylindrical wall of said reactor vessel such as to essentially entirely span across said internal reactor cylindrical wall diameter, for allowing a hydrocarbon feed stream to pass therethrough while preventing catalyst particles from a second moving bed of substantially packed catalyst to exit therethrough; a second moving bed of substantially packed catalyst supported by said second catalyst bed support means in a second hydroconversion reaction zone and having a second physical and/or catalytic properties; a second catalyst outlet means, communicating through said internal cylindrical wall of said reactor vessel with said second moving bed of substantially packed catalyst supported by said second catalyst bed support means, for withdrawing a second generally spent catalyst from a second hydroconversion reaction zone; and a second catalyst inlet means, communicating through said internal cylindrical wall of said reactor vessel with said second moving bed of substantially packed catalyst supported by said second catalyst bed support means, for introducing a second generally fresh catalyst into a second hydroconversion reaction zone.