Method and apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system
AssigneeIntercat Equipment, Inc.
InventorMartin Evans
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Abstract
A method and apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system are provided. In one embodiment, apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system includes a low pressure storage vessel coupled to a pressure vessel that defines a high pressure side of the apparatus, where the determination of the amount of catalyst transferred is made on the low pressure side of the apparatus.
Claims26
Apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system, comprising:
- a low pressure storage vessel;
- a pressure vessel rigidly coupled to a supporting surface having an outlet adapted to be coupled to a fluid catalytic cracking unit and an inlet;
- and
- a metering device coupling the storage vessel to the inlet of the pressure vessel.
Apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system, comprising:
- a low pressure storage vessel;
- a pressure vessel having an outlet adapted to be coupled to a fluid catalytic cracking unit;
- a control valve coupling a discharge port in the storage vessel to an inlet port of the pressure vessel;
- and
- at least one load cell adapted to provide a metric indicative of a weight of the storage vessel.
A method for metering catalyst in a fluid catalytic cracking catalyst injection system, the method comprising:
- metering catalyst from a low pressure storage vessel to a pressure vessel using a metering device, wherein the metering device determines the quantity of catalyst dispensed with respect to the storage vessel;
- pressurizing the pressure vessel to at least about 10 pounds per square inch;
- and
- injecting the pressurized catalyst from the pressure vessel into a fluid catalytic cracking unit.
A method for metering catalyst in a fluid catalytic cracking catalyst injection system, the method comprising:
- determining a first quantity of catalyst disposed in a low pressure storage vessel;
- transferring catalyst to a pressure vessel;
- determining a second quantity of catalyst disposed in the low pressure storage vessel;
- resolving a net transferred quantity of catalyst utilizing the first and second quantity of catalyst;
- pressurizing the pressure vessel;
- and
- injecting the pressurized catalyst into a fluid catalytic cracking unit.
Dependencies are inferred from the claim text.