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US 4,033,727 AGranted
Separator ring in fixed bed radial flow catalytic reactor
AssigneePhillips Petroleum Company
InventorLucien H. Vautrain
Life of this patent
Estimating the term…
Abstract
A generally ring-like baffle is located in the bottom of a radial flow catalytic reactor around the central apertured product removal conduit. The annular space between the removal conduit and the baffle is partially filled with solid catalyst support. Above the catalyst support is the catalyst. This prevents feedstock from either bypassing the catalyst completely in the area adjacent the bottom of the reactor or forming hot spots as a result of the normally low rate of flow travel in this section of the reactor.
Claims6
In a vertically disposed reactor comprising:
- side walls, a top wall and a bottom wall;
- an inlet opening at an upper end thereof;
- an annulus communicating with said inlet opening, said annulus being formed by said side walls and a perforated means spaced inwardly from said side walls;
- a centrally disposed apertured withdrawal conduit having an outlet opening at a lower end thereof;
- the improvement comprising an annular separator ring extending upwardly from said bottom wall of said reactor between said side wall and said central apertured withdrawal conduit to a level within the range of 0 to 3 inches below a lowermost row of apertures in said central apertured withdrawal conduit, an annular space defined by said separator ring and said side wall being filled with catalyst support to a level essentially coextensive with a top of said separator ring and an annular space defined by said separator ring and said central apertured withdrawal conduit being partially filled with catalyst support, catalyst being present between said centrally disposed withdrawal conduit and said perforated means.
2 more elements
In a vertically disposed reactor comprising:
- side walls, a top wall and a bottom wall;
- an inlet opening at an upper end thereof;
- an annulus communicating with said inlet opening, said annulus being formed by said side walls and a perforated means spaced inwardly from said side walls;
- a centrally disposed apertured withdrawal conduit having an outlet opening at a lower end thereof;
- the improvement comprising an annular separator ring extending upwardly from said bottom wall of said reactor between said side wall and said central apertured withdrawal conduit a distance within the range of 0.1 to 0.5 times a diameter of said reactor, an annular space defined by said separator ring and said side wall being filled with catalyst support to a level essentially coextensive with a top of said separator ring and an annular space defined by said separator ring and said central apertured withdrawal conduit being partially filled with catalyst support, catalyst being present between said centrally disposed withdrawal conduit and said perforated means.
2 more elements
Dependencies are inferred from the claim text.