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US 11,207,651 B2Granted
Moving bed reactor for processing three phase flows
AssigneeExxonMobil Research and Engineering Company
InventorsAnjaneya S. Kovvali, Michael F. Raterman, Arsam Behkish
Life of this patent
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Abstract
A moving bed reactor is provided that can allow facilitate performing a reaction involving a three-phase flow under co-axial flow conditions for the solid and liquid portions of the three phase flow, while the gas portion of the three-phase flow is exposed to the solids under radial flow conditions. Methods for using such a moving bed reactor to perform a reaction, such as upgrading of a feed to distillate products, are also provided.
Claims20
A moving bed reactor, comprising:
- a reactor comprising an annular outer volume, an annular solids volume inside the annular outer volume, a first central conduit inside of the annular solids volume, and an inner central conduit inside the first central conduit, the annular solids volume comprising a plurality of perforations providing vapor communication between the annular outer volume and the first central conduit;
- a central gas opening in fluid communication with the outer annular volume;
- a plurality of solids inlet conduits in solids flow communication with the annular solids volume;
- one or more distributor plates comprising distributor plate concave volumes, a plurality of the distributor plate concave volumes being arranged around each of the solids inlet conduits, each distributor plate concave volume comprising one or more orifices providing fluid communication between each distributor plate concave volume and the annular solids volume;
- a plurality of liquid inlet conduits in fluid communication with the distributor plate concave volumes;
- a gas exit conduit in fluid communication with the inner central volume;
- a liquid exit conduit in fluid communication with the outer central volume;
- and
- a solids exit volume in solids flow communication with a bottom of the solids annular volume, the solids exit volume further comprising a stripping gas inlet and a stripping gas outlet, the stripping gas outlet providing fluid communication with the outer central volume.
6 more elements
A method for operating a moving bed reactor, comprising:
- passing solid particles into an annular solids volume of a moving bed reactor through a plurality of solids inlet conduits, the solid particles forming a plurality of cones at an angle of repose for the solid particles within the annular solids volume;
- passing a liquid feed into the annular solids volume, at least a portion of the liquid feed impinging on the plurality of cones formed by the solid particles;
- contacting the solid particles with a gas feed by passing the gas feed from an outer annular volume, through the annular solids volume, through a first central conduit, and into an inner central conduit;
- moving the solid particles and a liquid effluent through the annular solids volume into a solids exit volume;
- stripping the liquid effluent from the solid particles by passing a stripping gas through the solids exit volume and into the first central conduit.
2 more elements
Dependencies are inferred from the claim text.