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US 10,882,037 B2Granted
Apparatus and process for contacting catalyst with a gas and reduction
AssigneeUop LLC
InventorsJeffrey R. Grott, Michael J. Vetter, Jennifer J. Ozmen, Quan Yuan
Life of this patent
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Abstract
A process and apparatus is disclosed for distributing a gas stream into a downwardly flowing catalyst stream in a vessel by feeding the gas stream into a center of the vessel or the catalyst stream into a hollow cap. The gas stream enters the cap and exits the cap flowing upwardly to contact the catalyst stream.
Claims11
A process of distributing gas into a catalyst stream comprising:
- feeding a catalyst stream downwardly in a vessel;
- feeding a gas stream into a center of said catalyst stream into a hollow cap;
- said gas stream entering said cap and exiting said cap and flowing upwardly to contact said catalyst stream that is flowing downwardly,
- wherein said catalyst stream has a minimum of 0.1 wt % chemisorbed water before contacting said gas stream and said catalyst stream is partially dried to have at least 25 wt % less chemisorbed water after contacting said gas stream than before contacting said gas stream.
1 more element
A reduction process comprising:
- feeding a catalyst stream comprising water downwardly in a vessel;
- feeding a first gas stream into a center of said catalyst stream into a hollow cap;
- said first gas stream entering said cap and exiting said cap and flowing upwardly to contact and dry said catalyst stream that is flowing downwardly to provide a dried catalyst stream and a wet gas stream;
- discharging said wet gas stream through a first side outlet from said vessel;
- feeding a second gas stream to said vessel to contact said dried catalyst stream to reduce the valence state of metals in said dried catalyst stream to provide a reduced catalyst stream and a used gas stream;
- and
- discharging said reduced catalyst stream and said used gas stream from said vessel.
4 more elements
Dependencies are inferred from the claim text.