Reactor Internals
The radial flow systems are widely used in Catalytic Reforming, Styrene Dehydrogenation, NOX Removal Systems, Solvent Recovery, Ammonia Converters, and Isomerization Processes. These reactor are employed for their high-volume flow capacity with minimal pressure drop Radial flow systems increase contact efficiency between the process stream and catalyst bed which causes vessel size reduction. These type of reactors not only produce a higher yield, but also they are more energy efficient.
The main internals of a radial flow reactor are:
- Center Pipes
- Scallops
- Cover Plates
In its simplest form a radial flow system consist of two concentric screens and an annulus filled with catalyst slots on both the center screen and outer basket are oriented vertically to allow media to slide against the screen surface during processing without becoming abraded by the slot edges.
- A series of cylindrical screens arrayed at the top of the upper catalyst bed either to collect metallic contaminates or scales from plugins the top surface of the upper catalyst bed or to increase the total surface area of the upper catalyst bed to extend the bed’s useful life.
- The radial flow systems are widely used in Catalytic Reforming, Styrene Dehydrogenation, NOX Removal Systems, Solvent Recovery, Ammonia Converters, and Isomerization Processes. These reactor are employed for their high-volume flow capacity with minimal pressure drop Radial flow systems increase contact efficiency between the process stream and catalyst bed which causes […]
- In two phase hydroprocessing reactors with quench in inter-bed, a mixing device is required in order to contact the quench fluid with vapor and liquid media from above catalyst bed for efficient transfer phenomena with uniform composition and temperature profiles in the bed below.
- It is designed to give an even flow distribution at the bed outlet in order to ensure optimal utilization of the catalyst in the bottom of bed, another task of Outlet Collector is to prevent the catalyst , inert Ball and fines from entering the outlet pipe.
- It is designed to prevent flow maldistribution in the bed and to avoid movement of the catalyst bed by high-velocity impingement. Inlet Diffuser reduces kinetic energy of feed to ensure that the distribution of feed inside reactor or in the Distributor Tray below is not turbulence directly from the inlet […]
- In the hydroprocessing reactor, the hydrocarbon feed is reacted with hydrogen over a fixed bed of catalyst at an elevated temperature and pressure. For petroleum fractions heavier than naphtha, the mixture of hydrocarbon feed and hydrogen typically consists of two phases: a liquid phase and a vapor phase. In order […]
- Support Grids are designed to provide sufficient strength to support catalytic beds under normal operating conditions while at the same time without creating any capacity restriction in the column, a suitable support grid selection depends on the type of catalyst as well as maximum design load. The Support Grids surface […]
