Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7638039 | In-situ catalyst replacement The present invention relates generally to catalysts and, in particular, relates to in-situ replacement of catalyst within a reactor. In an embodiment, the present invention comprises a method for the in-situ replacement of catalyst bodies in a catalytic reactor com... | 12/29/2009 |
| 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 unit, a fines collector, and a fines injector coupled to the fines c... | 08/11/2009 |
| 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 transportable platform, a catalyst reservoir coupled to the platform an... | 03/31/2009 |
| 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 Process unit or Petroleum Refining area, whereby the separation of recov... | 10/07/2008 |
| 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 housing in which a conical insert is also situated. This creates an annular... | 07/15/2008 |
| 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 pressure transmitter, a pressure control valve, a discharge valve, and ... | 06/24/2008 |
| 7368090 | FCC spent catalyst distributor An distributor arrangement introduces spent FCC catalyst more uniformly across the dense bed of the regenerator to provide more even contact with regeneration gas in order to avoid hot spots and zones of incomplete combustion. The invention forms a fluidized hopper ... | 05/06/2008 |
| 7364708 | Multi-catalyst injection system 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 fl... | 04/29/2008 |
| 7323099 | Two stage fluid catalytic cracking process for selectively producing Cto Colefins A process for selectively producing C2 to C4 olefins from feedstock such as a gas oil or resid. The feedstock is reacted in a first stage comprising a fluid catalytic cracking unit wherein it is converted in the presence of a mixture of convent... | 01/29/2008 |
| 7312370 | FCC process with improved yield of light olefins An FCC process for obtaining light olefins comprises contacting a hydrocarbon feed stream with blended catalyst comprising regenerated catalyst and coked catalyst. The catalyst has a composition including a first component and a second component. The second componen... | 12/25/2007 |
| 7309383 | Process for removing solid particles from a gas-solids flow Catalyst losses are prevented in riser reactor systems by using a low inlet velocity for the first cyclone separator in each multi-stage cyclone separator in the reactor. Catalyst particles not separated from the product output flow in an oxygenate-to-olefin reactor... | 12/18/2007 |
| 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 fines with less active co-catalyst particles. By adding less active c... | 05/29/2007 |
| 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 the space velocity and maintain a fast fluidized flow regime therein... | 01/30/2007 |
| 7118715 | Stripping process with disproportionately distributed openings on baffles A baffle-style stripper for an FCC process comprising sloped baffles in which a greater volumetric flow rate of stripping medium permeates openings in a bottom section of the baffle than through a top section of the baffle for low catalyst flux stripping operations.... | 10/10/2006 |
| 7112307 | Riser reactor system for hydrocarbon cracking A riser reactor system for conversion of hydrocarbon feedstock to ethylene and propylene is described. The riser reactor system prevents riser reactors with a plurality of inlet ports for feeding gases having different compositions and for controlling the residence ... | 09/26/2006 |
| 7090082 | Method and device for separating materials A method for separating materials, in which a mixture of materials is guided through a channel in a direction of flow that extends at least approximately parallel to the gravitational field. Utilizing a wash fluid conveyed through the channel in a direction transver... | 08/15/2006 |
| 7050944 | FCC catalyst injection system having local data access A system and method for injecting catalyst into a fluid catalyst cracking (FCC) unit is provided. In one embodiment, a system for injecting catalyst into a FCC unit includes a catalyst injection apparatus coupled to a controller. The controller is housed in an enclo... | 05/23/2006 |
| 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 minimizing removal of the newest catalyst and maximizing removal of ol... | 04/25/2006 |
| 7029922 | Method for resupplying reagents in an automatic clinical analyzer A method for resupplying reagents inventoried on-board an automatic clinical analyzer by: comparing an averaged assay demand pattern on the analyzer for assays over a sequence of specifically defined time periods with the reagents inventoried on-board the analyzer t... | 04/18/2006 |
| 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 oil also washes out the catalyst fines carried with the reactor effl... | 03/14/2006 |
| 6974559 | Apparatus for metering catalyst in a fluid catalytic cracking catalyst injection system 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 coupl... | 12/13/2005 |
| 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 different ratios, at two different times, in order to establish t... | 01/21/2003 |
| 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 valves. Optionally, a predetermined pressure in the vessel is ma... | 03/19/2002 |
| 6280609 | Process and apparatus for controlling reaction temperatures A process and apparatus for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium performs heat exchange in a first reaction zone and moves catalyst, at least intermittently, through the sec... | 08/28/2001 |
| 6187174 | Process for converting heavy petroleum fractions in an ebullated bed, with addition of a pre-conditioned catalyst A process for converting a heavy hydrocarbon fraction comprises a step a) for treating a hydrocarbon feed in a hydroconversion section in the presence of hydrogen, the section comprising at least one three-phase reactor containing at least one ebullated b... | 02/13/2001 |
| 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 to a magnetic separator. The catalyst is magnetically frac... | 08/08/2000 |
| 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 by passing fluid axially into the upper surface of the bed ... | 05/09/2000 |
| 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.RTM. operation employing magnetic separation of catalyst, particularly where the catalyst has enou... | 05/09/2000 |
| 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 from the column the catalyst that has lost at least a portio... | 03/14/2000 |
| 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 from the FCC regenerator, cooled, optionally subjected to m... | 10/26/1999 |
| 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 that sequentially restricts reactant flow while moving ca... | 09/07/1999 |
| 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 particles that are being added to the process are purged. This inv... | 11/24/1998 |
| 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 cracking stream. The powder, preferably injected just upstream of... | 10/13/1998 |
| 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 particles are discharged axially from the bottom of the flow chann... | 06/09/1998 |
| 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 magnesium-containing ingredient (e.g., magnesium acetate) and a bastnaes... | 04/08/1997 |
| 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 catalyst provides a disengagement zone that enhances the separat... | 03/25/1997 |
| 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 a reactor vessel by introducing the fluids as alternate an... | 12/31/1996 |
| 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 channels. The particles are discharged axially from the bott... | 08/13/1996 |
| 5545312 | Replacement of particles in a moving bed process A method and apparatus 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 particles that are being added to the process are pu... | 08/13/1996 |
| 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 selective molecular weight fractions. This process is specifica... | 07/23/1996 |
