摘要:
Collection enhanced materials, flue gas additives, and methods of making the enhanced materials and flue gas additives are provided. In one embodiment, a down stream addition system configured to control material passing through a metering device from a vessel to a gaseous exhaust path extending between a unit and an exhaust flue of the unit is provided. In alternative embodiments, methods are provided for introducing at least one of a flue gas additive and a collection enhanced material to a gaseous exhaust stream exiting a unit; exposing and removing at least a portion of at least one a of flue gas additive and a collection enhanced material from a gaseous exhaust stream exiting a unit prior to entering an exhaust flue; and recycling at least a portion of material removed a from a gaseous exhaust stream exiting a unit back to the gaseous exhaust stream without passing through the unit.
摘要:
Material delivery systems and methods are disclosed. Material delivery system includes delivery vessel, metering device, dispense mechanism, and mixer. The delivery vessel is configured to dispense material to a unit and metering device provides a metric indicative of the dispensed material to the unit. The dispense mechanism is configured to couple the delivery vessel to the unit. The mixer is coupled to the delivery vessel and configured to sufficiently mix the material with an activating agent. The method includes dispensing metered material from a dispense mechanism of a delivery vessel coupled to a mixer, wherein a metric is indicative of the dispensed material to the unit; sufficiently mixing the metered material with an activating agent in the mixer to activate the material, the mixer coupled to the unit; and delivering the activated material to the unit via the mixer. Systems and method also include providing material to plurality of units.
摘要:
An apparatus and method for loading catalyst to a fluid catalyst cracking unit are provided. In one embodiment, apparatus for loading catalyst to a fluid catalyst cracking unit includes a vessel disposed in a transportable housing. A plurality of catalyst storage regions are associated with the vessel. A metering device is interfaced with the vessel and configured to provide a metric indicative of an amount of catalyst provided from a selected one of the catalyst storage regions.
摘要:
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.
摘要:
A catalyst withdrawal apparatus and method for regulating catalyst inventory in a fluid catalytic cracking catalyst (FCC) unit is provided. In one embodiment, a catalyst withdrawal apparatus for removing catalyst from a FCC unit includes a pressure vessel having a metering device coupled to a fill port. A heat dissipater is located adjacent the metering device and is adapted to cool catalyst entering the pressure vessel. A sensor is coupled to the pressure vessel arranged to provide a metric indicative of catalyst entering the pressure vessel through the metering device. In another embodiment, a method for regulating catalyst inventory in a FCC unit includes the steps of determining a change of catalyst present in a FCC unit, withdrawing catalyst from the FCC unit into an isolatable storage vessel coupled to the FCC unit, measuring the amount of catalyst disposed in the storage vessel, and removing the measured catalyst from the storage vessel.
摘要:
A method and apparatus for metering catalyst to a fluid catalytic cracking catalyst unit are provided. In one embodiment, an apparatus for metering catalyst to a fluid catalytic cracking catalyst unit includes a low pressure storage vessel coupled to a pressure vessel by a metering device. A controller is provided to control catalyst transfers between the storage and pressure vessels. The control is configured to facilitate event and catalyst inventory information with local and remote devices.