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7605333 Vacuum powered addition system  
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...
7572364 Fluid catalytic cracking system with fines addition system  
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...
7560078 Vacuum powered addition system  
An addition apparatus, a fluid catalytic cracking (FCC) system having an addition apparatus, and a method for adding material to an FCC unit are provided. In one embodiment, an addition system for...
7534341 Discontinuous metering of catalysts and process auxilliaries into a gas-phase fluidized-bed reactor  
Method of metering at least one solid, particulate catalyst into a reactor containing a fluidized bed ( 11 ) of particles in an at least partly gaseous medium, in which the catalyst is metered...
7510647 Mobile fluid catalytic cracking injection system  
A mobile fluid cracking catalyst injection system and a method of controlling a fluid catalyst cracking process is provided. In one embodiment, a mobile fluid catalyst cracking system includes a...
7431826 Discarded FCC equilibrium catalyst through reclamation  
The invention relates to the partial recovery of discarded, spent, or waste fluid catalytic cracking (FCC) equilibrium catalyst by use of a separation device located off site, away from any FCC...
7399450 Cyclone layer reactor  
A fluidized-bed reactor is disclosed. The fluidized-bed reactor steadies the gas flow through the fluidized bed chamber of the reactor. The swirl chamber of the reactor consists of a conical...
7390396 Catalyst injection system with pressure control  
The invention is a catalyst injection system and method for injecting catalyst. In one embodiment, a fluid catalytic injection system includes vessel configured to store one or more catalysts, a...
7223896 Fines co-feed for maintaining efficient reactor hydrodynamics  
This invention provides processes for maintaining a desired particle size distribution in an oxygenate to olefin reaction system. In one embodiment, the invention comprises replacing lost catalyst...
7169293 Controllable space velocity reactor and process  
Disclosed is an apparatus and process for controlling space velocity in a fluidized catalytic conversion reactor. The catalyst flux rate can be adjusted during the process of the reaction to adjust...
7033488 Method of removing and replacing catalyst in a multi-reactor cascade configuration  
A defined catalyst withdrawal and replacement program for optimizing the productivity and the economics of catalyst consumption in a multi-reactor system is disclosed. Catalyst cost is reduced by...
7011740 Catalyst recovery from light olefin FCC effluent  
A method and system for recovering fines from a light FCC-type effluent gas. Cracked gases from the reactor are cooled by direct contact with circulating oil in an oil quench tower. The circulating...
6508930 Method for stabilizing operation of fluid catalytic converter units  
The operation of fluid catalytic converter (FCC) units can be stabilized through use of tests wherein a first catalyst and a second catalyst are introduced into the FCC unit in at least two...
6358401 Apparatus and procedures for replenishing particulate materials used in industrial processes  
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...
6099721 Use of magnetic separation to remove non-magnetic, particles from FCC catalyst  
A process for use of magnetic separation to remove non-magnetic particles from FCC catalyst is disclosed. A stream of circulating catalyst from a fluidized catalytic cracking (FCC) unit is charged...
6059961 Method to alleviate thermal cycles in moving bed radial flow reactor  
A process and arrangement for contacting a moving bed of compact particulate material, usually catalyst, with a radial flow of fluid maintains an unconfined surface of catalyst particles in place...
6059959 Varying carbon on catalyst to magnetically separate high metals catalyst  
This process controls the magnetic separation of high metals catalyst by influencing the magnetic susceptibility by carbon levels on catalyst. In an FCC/RCC® operation employing magnetic...
6036848 Method for loading and unloading a catalyst without halting the progress of an operation  
The catalyst inside a catalytic reaction column is replaced while running the catalytic reaction by diverting a basically monophase fluid to keep it from passing through the catalyst, evacuating...
5972208 FCC metals passivation additives applied to catalyst  
A process and apparatus for incorporating additives into a circulating inventory of equilibrium catalyst in a fluid catalyst cracking (FCC) unit are disclosed. Hot regenerated catalyst is removed...
5948240 Process for controlling reaction temperatures  
A process for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium amid simultaneous exchange of catalyst particles by an operation...
5840176 Replacement of particles in a moving bed process  
A method for replacing particles in a process that transfers particles is disclosed. This invention employs a seal zone which is in communication with two zones of the process and in which...
5820747 Steam cracking process and facility comprising injection of powder which is collected at a single point  
A steam cracking process and facility is described which comprises injection of erosive powder to effect at least partial decoking of transfer line exchangers without interrupting the steam...
5762888 Process and apparatus for discharging particles and fluid from a flow channel  
A vessel arrangement and process for contacting a fluid reactant with a particulate catalyst in a plurality of flow channels and discharging fluid and particles from the flow channels. The...
5618406 Processes for reacting bastnaesite with alkaline-earth metals  
Bastnaesite and magnesium-containing materials can be chemically reacted by use of reactions wherein alumina is made into a sol by use of a mono-protonic acid and then reacted with a...
5614083 Riser disengager with suspended catalyst separation zone  
This FCC process suspends a layer of catalyst in a riser proximate or above the riser outlets. The density at the riser outlets is higher than the flowing density in the riser. The suspended...
5589057 Method for extending the life of hydroprocessing catalyst  
This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of...
5545382 Process and apparatus for discharging particles and fluids from flow channels  
A reactor arrangement and process for contacting a fluid reactant with a particulate catalyst in a plurality of flow channels and discharging converted reactant fluid and particles from the flow...
5538624 Process, apparatus and compositions for recycle of cracking catalyst additives  
An improved catalytic process for heavy hydrocarbon conversion (usually but not necessarily in the presence of nickel and vanadium in the feedstock and on the catalyst) to produce lighter and...
5520797 Fluid catalytic cracking with a zinc ferrite-containing catalyst  
A process for the fluid catalytic cracking of heavy fraction oils containing heavy metals such as Ni and V, which comprises withdrawing a portion of ferrite-containing catalyst particles...
5512166 Process and apparatus for the continuous replacement of the catalyst in a moving-bed unit  
A process for the simultaneous replacement of a first catalyst by a second catalyst which first catalyst is circulating as a moving bed of solid particles in a hydrocarbon treating unit, which unit...
5466362 Process and system for catalyst addition to an ebullated bed reactor  
In an ebullated bed process for hydrotreating a distillate hydrocarbon feedstock it has been found that a catalyst addition slurry is made up with catalyst and feedstock. A control system provides...
RE35046 Addition of magnetically active moieties for magnetic beneficiation of particulates in fluid bed hydrocarbon processing  
By continuously or intermittently adding amounts of magnetically active moieties, e.g. iron compounds, over time so that the moiety deposits on a catalyst or sorbent in a fluid catalytic cracker or...
5389236 Method and apparatus for controlling introduction of catalysts into FCC units  
The disclosed method and apparatus provides for providing addition of micro-spheroidal ("MS") Fluid Catalytic Cracking ("FCC") catalyst additives and/or bulk catalyst to an in situ circulating,...
5328594 Magnetic separation of old from new cracking catalyst by means of heavy rare earth "magnetic hooks"  
This invention relates to an improved catalytic process for carrying out heavy hydrocarbon conversion, usually, but not necessarily, in the presence of nickel and vanadium on the catalyst and in...
5324421 Method of protecting heat exchange coils in a fluid catalytic cracking unit  
In a steam generator for recovering heat in a hot fluidized bed of solid particles, wherein coils of the steam generator make a 180° U-bend, the U-bend portion of the coils are protected from...
5316662 Integrated disengager stripper and its use in fluidized catalytic cracking process  
A method and apparatus for an FCC process uses means for dissipating turbulent flow at the outlet of a disengaging vessel to provide a quick separation of catalyst from product vapors and to...
5314611 External integrated disengager stripper and its use in fluidized catalytic cracking process  
A method and apparatus for an FCC process uses dissipator plates at the outlet of a disengaging vessel to provide a quick separation of catalyst from product vapors and to prevent reentrainment of...
5308473 Low NO.sub.x FCC regeneration process and apparatus  
A process and apparatus for fluidized bed regeneration of FCC catalyst are disclosed. Oxides of nitrogen (NO x ) emissions from an FCC regenerator operating in complete CO combustion mode, and...
5296131 Process for short contact time cracking  
A process for short contact time cracking of heavy feed. A falling, annular curtain of hot regenerated FCC catalyst, or hot inert solids, is formed over a cone shaped plug valve. Hydrocarbons pass...
5288397 Baffled FCC regeneration process and apparatus  
A process and apparatus for dense phase, at least partially co-current, fluidized bed regeneration of FCC catalyst are disclosed. Catalyst regeneration occurs in a dense phase fluidized bed, with...
5268090 FCC process for reducing sox using H.sub.2 S free lift gas  
This invention provides a method of reducing the sulfur oxide emissions from the regenerator of an FCC process that cracks a sulfur containing feedstream. The sulfur oxide emissions are reduced by...
5246568 Catalytic dewaxing process  
A process for making a lubricant oil of low pour point and improved oxidation stability by catalytically hydro-dewaxing a lube chargestock containing paraffin wax in a vertical column reactor...
5230869 Addition of magnetically active moieties for magnetic beneficiation of particulates in fluid bed hydrocarbon processing  
By continuously or intermittently adding amounts of magnetically active moieties, e.g. iron compounds, over time so that the moiety deposits on a catalyst or sorbent in a fluid catalytic cracker or...
5215653 Catalyst inventory control in an ebullated bed process  
An improved method of controlling catalyst inventory in the reactor of an ebullated bed process has been discovered. Pressure differentials are measured to calculate a catalyst inventory...
5198098 Magnetic separation of old from new equilibrium particles by means of manganese addition  
An improved catalytic process for heavy hydrocarbon conversion, (usually, but not necessarily, in the presence of nickel and vanadium on the catalyst and in the feedstock.) to produce lighter...
5158669 Disengager stripper  
A method and apparatus for an FCC process uses dissipator plates at the outlet of a disengaging vessel to provide a quick separation of catalyst from produce vapors and to prevent reentrainment of...
5147527 Magnetic separation of high metals containing catalysts into low, intermediate and high metals and activity catalyst  
One embodiment is an improved process for economically converting carbo-metallic oils by means of catalytic particulates into lighter products, wherein a portion of the particulates is withdrawn...
5104519 Method and apparatus for removing small catalyst particles in FCC systems  
Disclosed is a method of and apparatus for reducing the level of extremely small catalyst particles ("fines") in an FCC system by temporarily retaining particles separated from the secondary...
5089115 Downwardly forced particle bed for gas contacting  
Method for effecting contact of a gas with light particles of solid matter, where the particles are retained within particle retention screens to form a bed of particles and the particles move...
5076908 Method and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bed  
This invention makes possible substantially continuous flow of uniformly distributed hydrogen and hydrocarbon liquid across a densely packed catalyst bed to fill substantially the entire volume of...
Matches 1 - 50 out of 133 1 2 3 >