Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7842254 | Maximum reaction rate converter for exothermic reactions An ammonia converter is disclosed. The converter can alter the conversion of ammonia by controlling the reaction temperature of the exothermic reaction along the length of the reactor to parallel the equilibrium curve for the desired product. The converter can compr... | 11/30/2010 |
| 7837954 | Tube bundle reactors with pressure fluid cooling A set of prefabricated tube bundle reactor subassemblies is proposed which are adapted to be assembled at a construction site to provide a tube bundle reactor for carrying out catalytic gas and/or liquid phase reactions. In accordance with the invention, the reactor... | 11/23/2010 |
| 7807116 | Shell-and-tube reactor including a distribution device for a gas-liquid phase mixture A shell-and-tube reactor is disclosed. Contact tubes are disposed within a cylindrical housing and are secured to tube plates. Gas and liquid phases are received via a feed opening in a lower end cap and discharged via an upper end cap in the housing. A distributor ... | 10/05/2010 |
| 7771674 | Multitubular reaction apparatus for contact gas-phase reaction The present invention relates to a multitubular catalytic gas-phase reaction apparatus, comprising a plurality of reaction tubes arranged in parallel, a baffle capable of changing the direction of movement of a heat medium introduced into a reactor shell to a direct... | 08/10/2010 |
| 7670572 | Multi-phase fluid distributor for a bundled-tube reactor A distributor includes first and second liquid distribution systems for two liquid phases for an upright tube-bundle reactor. The first system is arranged directly above or on a tubesheet and is connected to at least one outer feed device and contains an annular wei... | 03/02/2010 |
| 7635456 | Low pressure drop reforming reactor A syngas reforming reactor has a shell-and-tube configuration wherein the shell-side fluid flow path through the tube bundle has a longitudinal configuration. The reactor can include a shell-side inlet fluid distributor plate below the lower end of the tube bundle, ... | 12/22/2009 |
| 7588739 | Fixed bed multitube reactor A fixed-bed multitubular reactor, comprising a plurality of reaction tubes (3) filled with a catalyst and catalyst temperature measurers (4) measuring the temperatures of the reaction tubes near the radical center parts thereof. The catalyst temperatur... | 09/15/2009 |
| 7585473 | Carbamate condensation unit A carbamate condensation unit of the submerged type for synthesis urea production plants comprising a tube bundle for the condensation of gaseous compounds, is distinguished in that it further comprises a duct, structurally independent from the tube bundle, for the ... | 09/08/2009 |
| 7566427 | Annular-type distributor with improved flow uniformity Disclosed are an annular-type distributor having a multiple slit layer including at least two annular layers, which are stacked while being spaced by a predetermined distance and in which at least one slit is formed so as to receive or discharge fluid; a reactor or ... | 07/28/2009 |
| 7531146 | Synthesis furnace A synthesis furnace has a furnace chamber surrounded by a circumferential furnace wall, in which burners are disposed essentially in one plane, with burner exit direction directed downward, and reaction tubes are disposed essentially vertically and parallel to one a... | 05/12/2009 |
| 7416571 | Compact mixer for the mixing of gaseous hydrocarbon and gaseous oxidants Embodiments include methods and apparatus for mixing feedgases and producing synthesis gas. The apparatus includes a vessel containing a mixing system comprising one or more channels and a reaction zone downstream of the mixing system. A first feedgas and a second f... | 08/26/2008 |
| 7371361 | Maximum reaction rate converter system for exothermic reactions An ammonia converter system and method are disclosed. The reactor can alter the conversion of ammonia by controlling the reaction temperature of the exothermic reaction along the length of the reactor to parallel the equilibrium curve for the desired product. The re... | 05/13/2008 |
| 7365228 | Method for producing unsaturated fatty acids Disclosed is a method for producing unsaturated fatty acids from unsaturated aldehydes by means of fixed-bed catalytic partial oxidation in a shell-and-tube reactor, characterized in that the reactor includes a reaction zone for producing unsaturated fatty acids, th... | 04/29/2008 |
| 7344634 | Process and apparatus for contacting hydrocarbons with catalyst A reactor apparatus and process for contacting hydrocarbons with catalyst. The reactor apparatus comprises a plurality of tubular reactors each having a first end into which a catalyst is fed and a second end through which the catalyst and product exit the tubular r... | 03/18/2008 |
| 7326389 | Method of producing unsaturated aldehyde and/or unsaturated acid Disclosed is a shell-and-tube reactor that may be used in a method for producing unsaturated aldehydes and/or unsaturated acids from olefins by means of fixed-bed catalytic partial oxidation. The reactor includes at least one reaction zone of a first-step reaction z... | 02/05/2008 |
| 7316804 | Flow reactors for chemical conversions with heterogeneous catalysts Improved apparatus for use in process systems which include exothermic chemical conversions of organic compounds to value added products is disclosed, more particularly, flow reactors for exothermic chemical conversions using a fixed heterogeneous catalyst with mean... | 01/08/2008 |
| 7311885 | Batch reaction system A batch reaction system for simultaneously conducting reactions in at least two separate reactors (CSTR reactors), is provided wherein the at least two batch reactors, containing mixing means and a fluid inlet, a fluid feed common conduit is present for feed fluid t... | 12/25/2007 |
| 7294317 | Exothermic reaction system A reactor and heat exchanger assembly is provided with the heat exchanger integrally affixed to the reactor exit head and adapted to immediately cool reactor gases from the reactor. ... | 11/13/2007 |
| 7288691 | Process for heat treatment of hydrocarbon feedstocks by furnace that is equipped with radiant burners The invention consists of an application of radiant burners to furnaces for heat treatment of hydrocarbon feedstocks in which the feedstock that is to be treated circulates inside an exchange tube bundle that receives the heat that is emitted by the burners essentia... | 10/30/2007 |
| 7285153 | Method and equipment for feeding two gases into and out of a multi-channel monolithic structure A method with associated equipment for feeding two gases into and out of a multi-channel monolithic structure. The two gases will normally be gases with different chemical and/or physical properties. The first gas and the second gas are fed by means of a manifold he... | 10/23/2007 |
| 7279019 | Endothermic reaction process and an apparatus therefor A process for an endothermic reaction includes the steps of carrying out an exothermic reaction in which a fuel is combusted to generate heat for transfer to a feedstock subject to an endothermic reaction, the waste heat from the exothermic and endothermic reactions... | 10/09/2007 |
| 7279143 | Plasmatron-catalyst system A plasmatron-catalyst system. The system generates hydrogen-rich gas and comprises a plasmatron and at least one catalyst for receiving an output from the plasmatron to produce hydrogen-rich gas. In a preferred embodiment, the plasmatron receives as an input air, fu... | 10/09/2007 |
| 7265250 | Method of producing unsaturated aldehyde and/or unsaturated fatty acid Disclosed is a method for producing unsaturated aldehydes or unsaturated fatty acids from at least one compound selected from the group consisting of propylene, propane, (meth)acrolein, isobutylene, t-butyl alcohol, methyl-t-butyl ether and o-xylene by means of fixe... | 09/04/2007 |
| 7262324 | Method of producing unsaturated acid in fixed-bed catalytic partial oxidation reactor with enhanced heat control system The present invention provides a process of producing unsaturated acids from unsaturated aldehydes by fixed-bed catalytic partial oxidation in a shell-and-tube heat exchanger-type reactor, as well as a shell-and-tube heat exchanger-type reactor for use in the proces... | 08/28/2007 |
| 7250142 | Device for mixing and distributing a dense fluid and a light fluid, placed upstream from a granular bed, and its use in descending flow Device for mixing and distributing a dense, generally liquid, fluid and a light, generally gaseous, fluid, placed in a reaction chamber upstream from a granular bed (70) or between two successive granular beds, the said device being characterized by a tubular... | 07/31/2007 |
| 7238844 | Olefin oligomerization This invention is to a method of oligomerizing an olefin feed stream. The olefin feed stream contains at least one C2 to C12 olefin to obtain an olefin feed stream and has less than 1,000 ppm by weight oxygenated hydrocarbon. The olefin is olig... | 07/03/2007 |
| 7238836 | Method of producing unsaturated aldehyde and unsaturated acid in fixed-bed catalytic partial oxidation reactor with enhanced heat control system The present invention provides a process of producing unsaturated aldehydes and unsaturated acids from olefins by fixed-bed catalytic partial oxidation in a shell-and-tube heat exchanger-type reactor. In this process, the reactor comprises a first-step reaction zone... | 07/03/2007 |
| 7232848 | Gas agitated multiphase reactor with stationary catalyst solid phase An apparatus for converting a gaseous and/or liquid feed fluid to gaseous and/or liquid products using a solid catalyst comprises a reactor, a liquid phase disposed within the reactor volume, a fixed catalyst at least partially disposed in the liquid phase, a coolin... | 06/19/2007 |
| 7226567 | Multi-tube fixed-bed reactor, especially for catalytic gas phase reactions A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, meth... | 06/05/2007 |
| 7220341 | Controlling solids flow in a gas-solids reactor This invention is to a process and system for controlling solids distribution in a gas-solids reactor. Solids distribution is controlled by controlling electrical charges between solid particles flowing between conductive surfaces within a gas-solids reactor. The el... | 05/22/2007 |
| 7220392 | Fuel conversion reactor A fuel conversion reactor includes a shell-and-tube heat exchanger for controlling the temperature of a hot gaseous mixture produced by catalytic or non-catalytic reaction of a fuel with a gaseous fluid, and for controlling the temperature of the gaseous fluid and/o... | 05/22/2007 |
| 7214251 | Compact steam reformer The compact steam reformer of the present invention integrally comprises a housing; a reforming reactor having an upper mixing compartment for mixing natural gas and steam and a lower compartment for accommodating a catalyst bed; a natural gas feeding coiled pipe th... | 05/08/2007 |
| 7195741 | Multiple riser reactor The present invention is directed to a hydrocarbon conversion apparatus. The apparatus comprises the following: a plurality of riser reactors, each of the riser reactors having a first end into which a catalyst can be fed and a second end through which the catalyst ... | 03/27/2007 |
| 7195059 | Heat exchanger and method of performing chemical processes A heat exchanger including a passageway having an internal passage adapted to form a first flow path, and an array of conduits having internal passages that collectively form a second flow path. The conduits extend through the internal passage of the passageway, and... | 03/27/2007 |
| 7189379 | Apparatus for methanol synthesis An object of the present invention is to provide a production process for methanol in which a distillation system is reduced in a size by removing efficiently heat generated in a methanol synthesis reaction and inhibiting by-products from being formed. The present i... | 03/13/2007 |
| 7182923 | Reaction chamber that comprises a jacket that contains at least one module that is connected by flexible means to the jacket and that contains heat exchange means A device has a reaction chamber with at least one feed inlet (5) and at least one evacuation outlet (10). An outside jacket (2a) that is resistant to internal pressure is positioned around the device and contains at least one module (4... | 02/27/2007 |
| 7182922 | Device for mixing and distributing a gas phase and a liquid phase supplied to a granular bed For mixing and distributing a gas phase and a liquid phase over a granular bed, employing an annular peripheral zone inside a reactor via which liquid is introduced and which acts as a buffer zone against fluctuations in the flow of the liquid phase. The device is a... | 02/27/2007 |
| 7179323 | Ion transport membrane module and vessel system An ion transport membrane system comprising (a) a pressure vessel having an interior, an exterior, an inlet, and an outlet; (b) a plurality of planar ion transport membrane modules disposed in the interior of the pressure vessel and arranged in series, each membrane... | 02/20/2007 |
| 7172737 | Fuel conversion reactor A conversion reactor (10) including an outer shell (12) having first (14) and second (16) ends and an inner surface (16) a primary inner shell (30) extending into the outer shell (12), the primary inner shell (30 | 02/06/2007 |
| 7172412 | Pyrolysis heater A pyrolysis heater particularly for the cracking of hydrocarbons in the production of olefins has a burner arrangement in the firebox which includes staged combustion low NOx hearth burners firing upwardly in the firebox adjacent to the walls. Wall stabil... | 02/06/2007 |
