Abstract:
A fines injection apparatus, a fluid catalytic cracking (FCC) system having a fines injection apparatus, and a method for using the same are provided. In one embodiment, a FCC system includes a FCC unit, a fines collector, and a fines injector coupled to the fines collector for retuning the fines recovered in the fines collector to the FCC unit. In another embodiment, an apparatus for injecting fines into a FCC system includes a fines separator coupled to an effluent stream and an injection apparatus coupled to a regenerator. A conduit is provided for delivering collected fines from the fines separator to the injection apparatus. In yet another embodiment, a method for injecting fines into FCC system includes collecting fines from a waste stream of a FCC system, automatically transferring the collected fines to a fines injection apparatus, and periodically injecting the transferred fines into the FCC system.
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.
Abstract:
The invention is a multi-catalyst injection system. In one embodiment, the system comprises a plurality of catalyst storage regions associated with a vessel and a metering device associated with the vessel. The metering device is configured to provide a metric indicative of an amount of catalyst dispensed from a selected one of the catalyst storage regions.
Abstract:
The invention is a multi-catalyst injection system. In one embodiment, the system comprises a vessel suitable for storing fluid cracking catalyst and having a separator defining at least two compartments within the vessel. A plenum is defined in the vessel and is fluidly coupled to each of the compartments. A plurality of dispense mechanisms are respectively coupled to a respective compartment to control the flow of catalyst from the injection system.
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.
Abstract:
A resistivity sub including a resistivity sensor forms part of a bottom hole drilling assembly. The sensor is maintained at a substantially fixed offset from the wall of a borehole during drilling operations by, for example, a stabilizer. In WBM, galvanic sensors may be used, with or without commonly used focusing methods, for obtaining a resistivity image of the borehole wall. In OBM, capacitive coupling may be used. The apparatus is capable of using other types of sensors, such as induction, MPR, shielded dipole, quadrupole, and GPR sensors. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)
Abstract:
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.
Abstract:
The invention is a multi-catalyst injection system. In one embodiment, the system comprises a vessel suitable for storing fluid cracking catalyst and having a separator defining at least two compartments within the vessel. A plenum is defined in the vessel and is fluidly coupled to each of the compartments. A plurality of dispense mechanisms are respectively coupled to a respective compartment to control the flow of catalyst from the injection system.
Abstract:
Injection of particulate materials into industrial processes can be improved through use of a vessel mounted on a weighing device and which is vented through use of two separate and distinct valves. Optionally, a predetermined pressure in the vessel is maintained through use of a pressure transmitter and an on/off mode of operation.
Abstract:
A valve for introducing particulate materials into a high pressure gas stream and for preventing said particulate materials from invading those interior regions of the valve having moving parts.