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US 7,605,333 B2Granted
Vacuum powered addition system
AssigneeIntercat Equipment, Inc.
InventorsEric Elliott, Martin Evans
Life of this patent
Estimating the term…
Abstract
A method for adding material to an FCC unit is provided. In one embodiment, a method for adding material to an FCC unit includes providing a first vessel under low pressure containing a first material, moving the material through a first eductor to the FCC unit, and determining an amount of material moved dispensed from the vessel through the eductor.
Claims20
A method for adding material to an FCC unit, comprising:
- providing a first vessel under low pressure containing a first material;
- moving the material through a first eductor to the FCC unit;
- and
- determining an amount of material moved from the vessel through the eductor.
1 more element
A method for adding material to an FCC unit, comprising:
- providing a plurality of vessels maintained at low or atmospheric pressure coupled to a selection system;
- actuating the selection system to selectively couple one of the plurality of vessels to the FCC unit;
- and
- activating an eductor to pull material from the selected vessel through the eductor to the FCC unit.
1 more element
A method for adding material to an FCC unit, comprising:
- selectively coupling one or more of a plurality of vessels maintained at or near atmospheric pressure to one or more eductors;
- transferring additives from the selected vessel or vessels to the FCC through the one or more eductors;
- and
- determining an amount of additives transferred by a change in weight of the vessel.
1 more element
Dependencies are inferred from the claim text.