| Patent application number | Description | Published |
|---|
| 20090148360 | APPARATUS AND PROCESS FOR REGENERATING CATALYST - Disclosed is an apparatus and process for disengaging regenerated catalyst from flue gas in a catalyst regenerator so as to avoid re-entrainment of catalyst that has settled into a bed in the catalyst regenerator using a disengaging device. A disengaging arm of the disengaging device has an outer shell that encloses the arm, an inner shell with a slot for allowing catalyst and flue gas to exit the arm and an outer baffle having a lower edge located below the opening in the outer wall. The baffle directs the catalyst and flue gas downwardly and limits radial flow. Catalyst and flue gas enter the disengaging arm through an opening in an outer wall of a riser section at a first superficial velocity and exits through a slot in a bottom of the disengaging arm at no more than 1.33 the first superficial velocity. | 06-11-2009 |
| 20090149315 | PROCESS FOR REGENERATING CATALYST - Disclosed is a process for disengaging regenerated catalyst from flue gas in a catalyst regenerator so as to avoid re-entrainment of catalyst that has settled into a bed in the catalyst regenerator using a disengaging device. A disengaging arm of the disengaging device has an outer shell that encloses the arm, an inner shell with a slot for allowing catalyst and flue gas to exit the arm and an outer baffle having a lower edge located below the opening in the outer wall. The baffle directs the catalyst and flue gas downwardly and limits radial flow. Catalyst and flue gas enter the disengaging arm through an opening in an outer wall of a riser section at a first superficial velocity and exits through a slot in a bottom of the disengaging arm at no more than 1.33 the first superficial velocity. | 06-11-2009 |
| 20090158657 | METHOD AND SYSTEM OF HEATING A FLUID CATALYTIC CRACKING UNIT HAVING A REGENERATOR AND A REACTOR - In at least one embodiment of the present invention, a method of heating a FCC unit having a regenerator and a reactor having overall CO | 06-25-2009 |
| 20090158661 | METHOD AND SYSTEM OF RECOVERING ENERGY FROM A FLUID CATALYTIC CRACKING UNIT FOR OVERALL CARBON DIOXIDE REDUCTION - In at least one embodiment of the present invention, a method of recovering energy from a FCC unit having a reactor and a regenerator for overall CO | 06-25-2009 |
| 20090159496 | METHOD AND SYSTEM OF HEATING A FLUID CATALYTIC CRACKING UNIT FOR OVERALL CO2 REDUCTION - In at least one embodiment of the present invention, a method of heating a FCC unit having a regenerator and a reactor for over CO | 06-25-2009 |
| 20090159497 | SYSTEM AND METHOD OF PRODUCING HEAT IN A FLUID CATALYTIC CRACKING UNIT - Systems and methods of reducing refinery carbon dioxide emissions by increasing synthesis gas production in a fluid catalytic cracking unit having a reactor and a regenerator are disclosed. In one example, a method comprises separating spent catalyst from a hydrocarbon product in the reactor, the spent catalyst having trapped hydrocarbon thereon. The method further comprises reacting an additional feed with the spent catalyst in the reactor to deposit additional coke on the spent catalyst, defining a gas product. The method further separating the gas product and the trapped hydrocarbon from the spent catalyst with a stripping gas. The method further comprises removing coke from the spent catalyst in the regenerator, thereby increasing the amount of synthesis gas production. | 06-25-2009 |
| 20090264279 | Three-Stage Counter-Current FCC Regenerator - This invention is directed to a method and apparatus for regenerating a catalyst used in an FCC unit, including providing a spent catalyst into an upper portion of a regenerator, maintaining a calcination phase, a gasification phase, and a combustion phase of fluidized catalyst in the regenerator, combusting carbon in the combustion phase and producing a combustion flue gas, reacting carbon in the gasification phase with the combustion flue gas to form a carbon monoxide rich flue gas, and calcining the spent catalyst with the carbon monoxide rich flue gas. | 10-22-2009 |
| 20090283446 | PROCESS FOR MIXING IN FLUIDIZED BEDS - Process for increasing mixing in a fluidized bed. A slide, which may be in the form of a tube or trough, transports particles from an upper zone downward to a lower zone at a different horizontal position, thereby changing the horizontal position of the particle and creating lateral mixing in the fluidized bed. Increased mixing may improve efficiency for an apparatus using a fluidized bed. For example, increased lateral mixing in a regenerator may increase temperature and oxygen mixing and reduce stagnation to improve efficiency. A slide may be relatively unobtrusive, inexpensive, and simple for a retrofit or design modification and may improve combustion efficiency at high rates by enhancing the lateral blending of spent and regenerated catalyst. | 11-19-2009 |
| 20100155295 | Process for Improving Flow Properties of Crude Petroleum - A process and apparatus for improving flow properties of crude may include processing a first crude stream, which may in turn include cracking the first crude stream with catalyst to form a cracked stream and spent catalyst, hydrotreating a portion of the cracked stream and then mixing the hydrotreated stream with an unprocessed second crude stream. | 06-24-2010 |
| 20100158764 | Apparatus for Improving Flow Properties of Crude Petroleum - A process and apparatus for improving flow properties of crude may include processing a first crude stream, which may in turn include cracking the first crude stream with catalyst to form a cracked stream and spent catalyst, hydrotreating a portion of the cracked stream and then mixing the hydrotreated stream with an unprocessed second crude stream. | 06-24-2010 |
| 20100158767 | FLUID CATALYTIC CRACKING SYSTEM - One exemplary embodiment can be a fluid catalytic cracking system. The system can include a reaction zone operating at conditions to facilitate olefin production and including at least one riser. The at least one riser can receive a first feed having a boiling point of about 180-about 800° C., and a second feed having more than about 70%, by weight, of one or more C4 | 06-24-2010 |
| 20100236980 | MAINTAINING CATALYST ACTIVITY FOR CONVERTING A HYDROCARBON FEED - One exemplary embodiment can be a process for fluid catalytic cracking. The process can include withdrawing a catalyst from a reaction vessel to replace a catalyst inventory over a period of about 10- about 35 days for maximizing propylene yield. | 09-23-2010 |
| 20100243529 | PROCESS FOR CONTACTING HIGH CONTAMINATED FEEDSTOCKS WITH CATALYST IN AN FCC UNIT - An FCC process comprising an enlarged riser section and a distributor in an elevated position and with an opening in its tip away from riser walls may reduce coke build-up along the interior walls of a riser. Catalytic mixing may be improved, which could reduce riser coking by increasing hydrocarbon contact with catalyst before contacting the riser wall. Increasing the distance between the introduction of the hydrocarbon and the riser wall may increase this likelihood for hydrocarbon-catalyst contact. Highly contaminated hydrocarbons cause greater coking than do normal hydrocarbons and this FCC process may be effective in decreasing riser coking on such heavy hydrocarbons. | 09-30-2010 |
| 20110011094 | METHOD OF RECOVERING ENERGY FROM A FLUID CATALYTIC CRACKING UNIT FOR OVERALL CARBON DIOXIDE REDUCTION - In at least one embodiment of the present invention, a method of recovering energy from a FCC unit having a reactor and a regenerator for overall CO | 01-20-2011 |
