Patent application number | Description | Published |
20090107092 | STRIPPING APPARATUS - In an FCC apparatus in which swirl arms are used to discharge gas and catalyst from a riser, a baffle is used to direct descending catalyst away from a wall of a disengaging vessel proximate a stripping section comprising elongated strips of metal. | 04-30-2009 |
20090107336 | STRIPPING PROCESS - In an FCC process in which swirl arms are used to discharge gas and catalyst from a riser, a baffle is used to direct descending catalyst away from a wall of a disengaging vessel proximate a stripping section comprising elongated strips of metal. | 04-30-2009 |
20090107884 | STRIPPING APPARATUS AND PROCESS - In an FCC apparatus and process in which swirl arms are used to discharge gas and catalyst from a riser, an anti-swirl plate is disposed in the disengaging vessel to dampen the angular momentum of swirling descending catalyst particles and gases. | 04-30-2009 |
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 |
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 |
20100025295 | Process for Separating Solids from Gas - A process separates solids from gas in a vessel using cyclones. The cyclones have centers located at different distances from a center of the vessel, but the inlets to the cyclones are located at the same distance from the center to balance the proportions of catalyst fines entering each cyclone. | 02-04-2010 |
20100025305 | Apparatus for Separating Solids from Gas - An apparatus separates solids from gas in a vessel using cyclones. The cyclones have centers located at different distances from a center of the vessel, but the inlets to the cyclones are located at the same distance from the center to balance the proportions of catalyst fines entering each cyclone. | 02-04-2010 |
20100078357 | Process for Mixing Regenerated and Carbonized Catalyst - A process for mixing regenerated and carbonized catalyst involves obstructing upward flow of catalyst by one or more baffles between a catalyst inlet and a feed distributor. Each catalyst stream may be passed to opposite sides of a riser. Baffles obstruct upward flow to effect mixing of regenerated and carbonized catalyst to obtain a more uniform temperature and catalyst mixture before contacting the feed. | 04-01-2010 |
20100080741 | Apparatus for Mixing Regenerated and Carbonized Catalyst - An apparatus for mixing regenerated and carbonized catalyst involves obstructing upward flow of catalyst by one or more baffles between a catalyst inlet and a feed distributor. Each catalyst stream may be passed to opposite sides of a riser. Baffles obstruct upward flow to effect mixing of regenerated and carbonized catalyst to obtain a more uniform temperature and catalyst mixture before contacting the feed. | 04-01-2010 |
20100155299 | FLUID CATALYTIC CRACKING SYSTEM AND PROCESS - One exemplary embodiment can be a fluid catalytic cracking system. The system can include a reaction zone, in turn including a reactor receiving, a fluidizing stream, a fuel gas stream, a fluidizable catalyst, a stream having an effective amount of oxygen for combusting the fuel gas stream, and a feed. | 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 |
20100168488 | FLUID CATALYTIC CRACKING SYSTEM AND PROCESS - One exemplary embodiment can be a fluid catalytic cracking system. Generally, the fluid catalytic cracking system includes a first reaction vessel and a second reaction vessel. The first reaction vessel may contain a first catalyst having pores with openings greater than about 0.7 nm and a second catalyst having pores with smaller openings than the first catalyst. What is more, the second reaction vessel may contain the second catalyst. Generally, at least a portion of the second catalyst is directly communicated with the first reaction vessel. | 07-01-2010 |
20100303698 | PROCESS FOR REGENERATOR MIXING - A process is provided for increasing mixing in a regenerator. Streamlines of gas and some catalyst may form in a regenerator as a result of cyclone inlet horns positioned in the same direction. Overall mixing in the regenerator may decrease because of these streamlines. A dampening device may be used to interrupt the streamlines and increase mixing in the regenerator. The dampening device may be a baffle and direct streamlines from the outside of the chamber toward the center to collide and mix. In another embodiment, a dampening device may be a secondary disengager such as a T-disengager or an inverted can arrangement that may discharge gas and catalyst near the center of the upper chamber and interrupt the streamlines. In another embodiment, a dampening device may have swirl arms that redirect stream lines counter to the direction of flow. | 12-02-2010 |
20100304956 | ALKYLATION SYSTEM INCLUDING A CATALYST REGENERATION ZONE, AND A PROCESS RELATING THERETO - One exemplary embodiment can be an alkylation system including a catalyst regeneration zone. Generally, the catalyst regeneration zone includes first and second columns. The first column can provide an overhead stream having a catalyst and a first hydrocarbon, a side-stream having the catalyst and water, and a bottom stream having a second hydrocarbon. Typically, the second column receives the side-stream as a feed. | 12-02-2010 |
20100329946 | ALKYLATION SYSTEM AND A PROCESS FOR COOLING A VENT STREAM - One exemplary embodiment can be a process for cooling a vent stream from a receiver. Generally, the process may include providing a refrigerant including at least one compound contained in the receiver so the refrigerant leaking into the receiver can be compatible with the process. | 12-30-2010 |
20110108458 | PROCESS FOR RECOVERING PRODUCTS FROM TWO REACTORS - A process is disclosed for catalytically converting two feed streams. The feed to a first catalytic reactor may be contacted with product from a second catalytic reactor to effect heat exchange between the two streams and to transfer catalyst from the product stream to the feed stream. The feed to the second catalytic reactor may be a portion of the product from the first catalytic reactor. | 05-12-2011 |
20110110825 | APPARATUS FOR RECOVERING PRODUCTS FROM TWO REACTORS - An apparatus is disclosed for catalytically converting two feed streams. The feed to a first catalytic reactor may be contacted with product from a second catalytic reactor to effect heat exchange between the two streams and to transfer catalyst from the product stream to the feed stream. The feed to the second catalytic reactor may be a portion of the product from the first catalytic reactor. | 05-12-2011 |
20110198267 | ADVANCED ELEVATED FEED DISTRIBUTION APPARATUS AND PROCESS FOR LARGE DIAMETER FCC REACTOR RISERS - An FCC process and apparatus may include injecting hydrocarbon feedstock at different radial positions while at the same elevation inside a riser. Multiple distributors may be used to position the tips for injecting feedstock at multiple radial positions. The distributors with tips more deeply positioned in the riser will penetrate a dense catalyst column we discovered generates in risers of larger diameter over 1.3 meters. | 08-18-2011 |
20110297583 | PROCESS FOR FLUID CATALYTIC CRACKING - One exemplary embodiment can be a process for fluid catalytic cracking. The process may include providing a torch oil to a stripping section of a first reaction zone, which in turn can communicate at least a partially spent catalyst to a regeneration zone for providing additional heat duty to the regeneration zone. | 12-08-2011 |
20120088198 | FLUID CATALYTIC CRACKING SYSTEM AND PROCESS - One exemplary embodiment can be a fluid catalytic cracking system. The system can include a reaction zone, in turn including a reactor receiving, a fluidizing stream, a fuel gas stream, a fluidizable catalyst, a stream having an effective amount of oxygen for combusting the fuel gas stream, and a feed. | 04-12-2012 |
20120296146 | FLUID CATALYTIC CRACKING PROCESS - One exemplary embodiment can be a fluid catalytic cracking process. The process 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° to about 800° C., and a second feed having more than about 70%, by weight, of one or more C | 11-22-2012 |
20130079569 | FLUID CATALYTIC CRACKING PROCESS - One exemplary embodiment can be a process for fluid catalytic cracking. The process may include providing a first feed having a boiling point of about 180-about 800° C. to a first riser reactor, and providing a second feed having first and second parts to a second reactor. Typically, the first part includes one or more C5-C12 hydrocarbons and a second part includes one or more C4-C5 hydrocarbons. Generally, an effective amount of the second part is combined with the first part to maximize production of propene. | 03-28-2013 |
20130079574 | OLIGOMERIZATION PROCESS - One exemplary embodiment can be a process for oligomerizing one or more hydrocarbons. The process can include oligomerizing a feed including one or more C3-C5 hydrocarbons to produce an effluent, and recycling at least a portion of the effluent for oligomerizing. Typically, the recycled portion has at least about 50%, by weight, one or more alkenes based on the weight of the recycled portion. | 03-28-2013 |
20130131406 | PROCESS FOR RECOVERING PRODUCTS FROM TWO REACTORS - A process is disclosed for catalytically converting two feed streams. The feed to a first catalytic reactor may be contacted with product from a second catalytic reactor to effect heat exchange between the two streams and to transfer catalyst from the product stream to the feed stream. The feed to the second catalytic reactor may be a portion of the product from the first catalytic reactor. | 05-23-2013 |
20130148463 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 06-13-2013 |
20130148464 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 06-13-2013 |
20130148465 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 06-13-2013 |
20130150233 | PROCESS AND APPARATUS FOR MIXING TWO STREAMS OF CATALYST - A process and apparatus for mixing streams of regenerated and carbonized catalyst involves passing a catalyst stream into and out of a chamber in a lower section of a riser. The chamber fosters mixing of the catalyst streams to reduce their temperature differential before contacting hydrocarbon feed. | 06-13-2013 |
20140135545 | FLUID CATALYTIC CRACKING PROCESS - One exemplary embodiment can be a process for fluid catalytic cracking. The process can include providing a first feed including one or more heavy hydrocarbons to a riser of a riser-reactor, and obtaining a second feed from an oligomerization zone. Usually, the second feed includes one or more light alkene oligomeric hydrocarbons and is provided downstream from the first feed for producing propene. | 05-15-2014 |
20140148632 | RESID CATALYTIC CRACKER AND CATALYST FOR INCREASED PROPYLENE YIELD - A process and catalyst for improving the yield of propylene from residual oil feedstock includes obtaining residual oil feedstock from a vacuum distillation tower. The residual oil feedstock has contaminant metals such as sodium or vanadium. The residual oil feedstock is contacted with a cracking catalyst in a catalytic cracking zone to make products. A ZSM-5 zeolite, a binder, a filler and a metal trap are components of the cracking catalyst. The metal trap has a trapping agent in an outer shell of the catalyst, a trapping agent in the ZSM-5 binder or combinations thereof. After reacting, the cracking catalyst is separated from the products in a separator zone, then regenerated by combusting coke deposited on a surface of the cracking catalyst in an oxygen-containing environment. The cracking catalyst is returned to the catalytic cracking zone. The catalyst with the metal trap is also disclosed. | 05-29-2014 |
20140356248 | SEGMENTED BAFFLE SYSTEM FOR A RISER - According to one aspect of the invention, a riser includes a cylindrical housing defined by a sidewall having an interior surface and an exterior surface. A baffle is defined by a first segment and a second segment, wherein the baffle is designed to be positioned on the interior surface of the riser and wherein the first segment and second segment are releasably interlockable. | 12-04-2014 |
20150065774 | FLUID CATALYTIC CRACKING SYSTEM AND PROCESS - One exemplary embodiment can be a fluid catalytic cracking system. Generally, the fluid catalytic cracking system includes a first reaction vessel and a second reaction vessel. The first reaction vessel may contain a first catalyst having pores with openings greater than about 0.7 nm and a second catalyst having pores with smaller openings than the first catalyst. What is more, the second reaction vessel may contain the second catalyst. Generally, at least a portion of the second catalyst is directly communicated with the first reaction vessel. | 03-05-2015 |