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| Number | Title | Issue Date |
| 7370847 | Grid plate bubble cap for reaction vessel used in hydroconversion of fossil fuels A catalytic hydrocracking reactor vessel includes enhanced components for the conversion of a hydrogen gas and fossil fuel feedstream to light liquid hydrocarbons. The reactor vessel comprises one or more of a reactor cup riser with a helical cyclonic separator cond... | 05/13/2008 |
| 7370846 | Parallel flow fractionation tray The invention comprises multiple configurations of downcomers in a parallel flow multiple downcomer tray for vapor-liquid contacting processes such as the separation of chemical compounds via fractional distillation or the removal of a component of a gas stream with... | 05/13/2008 |
| 7347413 | Tray column and method for mass transfer in a tray column A tray column is proposed which includes column trays, two or more supports which are arranged on the underside of the column trays and support them and a bearing ring for the column trays on the i... | 03/25/2008 |
| 7287747 | Partition assembly for packed or tray column A partition for a packed column or a tray column which can carry out separation and/or chemical reactions has at least two partition elements disposed one above another and/or one alongside the other in the same plane, at least one plug and/or clamp connector connec... | 10/30/2007 |
| 7281702 | Methods and apparatus for mixing and distributing fluids A flow distribution device (100) has a vane distributor (111) at least partially disposed within a cartridge (102) and is operationally coupled to a second distributing device (112) that receives output from the vane distributor (111 | 10/16/2007 |
| 7276215 | Mixing device for two-phase concurrent vessels In a vertical reactor vessel through which vapor and liquid flow concurrently, the fluids pass vertically through a horizontal mixing box having internal flow baffles that form at least one mixing orifice through which the process stream flows at high velocity. In t... | 10/02/2007 |
| 7234692 | Column tray A column tray assembly includes a tray having passages formed therein. The tray is a multifunction tray and is configured to receiving appropriate superstructures which can be selected according to the respective use of the assembly. Superstructures which communicat... | 06/26/2007 |
| 7204477 | Parallel flow fractionation tray The invention comprises multiple configurations of downcomers in a parallel flow multiple downcomer tray for vapor-liquid contacting processes such as the separation of chemical compounds via fractional distillation or the removal of a component of a gas stream with... | 04/17/2007 |
| 7172179 | Methods and apparatus for mixing fluids A bubble cap (400) has a cap (430) with at least one slot (495) and a riser (420), configured with a skirt height (460) of at least 4 cm, such that 1.5*Skirt Height (cm)+[Slot Length (cm)−Exposed Slot Height (cm)] is greater than... | 02/06/2007 |
| 7125006 | Methods and apparatus for mixing fluids A bubble cap (100) has a riser (120) and a cap (130), separated by a divider (140) that extends to a length at least 50% of a distance measured between the top of the riser (122) and the bottom of the cap (134). In another a... | 10/24/2006 |
| 7118098 | Hydraulically sealed crossflow mass transfer tray A hydraulically sealed crossflow mass transfer tray, separating columns which contain the hydraulically sealed crossflow mass transfer tray and the use of such separating columns for thermal separating processes. ... | 10/10/2006 |
| 7044159 | Methods and apparatus for mixing fluids A bubble cap has a riser and a cap, separated by a divider that extends to a length at least 50% of a distance measured between the top of the riser and the bottom of the cap. In another aspect, the riser and cap cooperate to provide a skirt height of no less than 1... | 05/16/2006 |
| 7017514 | Method and apparatus for plasma optimization in water processing An apparatus for managing plasma in wafer processing operations is disclosed which includes a housing having an internal region defined by an inner wall. The housing has an input port for supplying a plasma into the housing at a first end and an output port at a sec... | 03/28/2006 |
| 6978803 | Flue cap A flue cap is provided comprising a body defining a plurality of attachment surfaces adapted for selectively matingly engaging a selected flue from a plurality of different size flues. The flue cap comprises a polymer material defining an attachment surface that is ... | 12/27/2005 |
| 6960325 | Apparatus for hydrocracking and/or hydrogenating fossil fuels A catalytic hydrocracking reactor vessel for the conversion of a hydrogen gas and fossil fuel feedstream to light liquid hydrocarbons. The reactor vessel comprises reactor cup riser with a helical cyclonic separator conduit for separating a liquid and vapor product ... | 11/01/2005 |
| 6881387 | Reactor distribution apparatus and quench zone mixing apparatus A quench zone mixing apparatus (16) that occupies a low vertical height and has an improved mixing efficiency and fluid distribution across the catalyst surface includes a swirl chamber (20), a rough distribution network (100), and a distributio... | 04/19/2005 |
| 6868795 | Bubble cap assembly A bubble cap assembly for use in fluidized bed boilers, furnaces, or reactors, has a bubble cap, a stem, and at least one pin. One end of the stem is inserted into the bubble cap. The bubble cap has outlet holes for delivering a fluidizing medium, typically into a b... | 03/22/2005 |
| 6799752 | Method and apparatus for improving a fractionation process A method and apparatus for increasing fractionation capacity and efficiency within an existing distillation column having preexisting mass transfer surface structures with a multiplicity of openings for vapor-liquid contact is provided. Some embodiments of the prese... | 10/05/2004 |
| 6769672 | Two-phase distribution apparatus and process Vapor and liquid passing downward through a vessel are brought into contact within a plurality of distributor assemblies arranged across a horizontal distribution tray located within the vessel. The distributor assemblies have fluid flow paths with different resista... | 08/03/2004 |
| 6679939 | Fractional condensation of a product gas mixture containing acrylic acid In a process for the fractional condensation of an acrylic acid-containing product gas mixture of a gas-phase partial oxidation of C3 precursors of acrylic acid with molecular oxygen under heterogeneous catalysis, the separation column used con... | 01/20/2004 |
| 6508459 | Distribution apparatus having bubble caps with riser vanes The invention is directed to a bubble cap including: a riser having a lower end located within and extending through an aperture in the plate of the distribution apparatus and a top end to define a passageway between the ends; a cap located over the top e... | 01/21/2003 |
| 6485613 | Batch-continuous countercurrent mass transfer process Mass transfer process, in which, in at least two contact stages, and at least two liquid or gaseous phases are brought into contact with one another, at least one component being transferred between the phases and the phases moving countercurrently. The f... | 11/26/2002 |
| 6436245 | Apparatus for the purification of organic compounds containing readily-blocking substances and process thereof A purification tower for purifying liquid by contacting the liquid with gas, the purification tower including: (a) a shell; and (b) a plurality of baffles, each of which is fixed to an internal surface of the shell, (i) said each baffle having a flat upper sur... | 08/20/2002 |
| 6386520 | Fluid inlet device A fluid inlet device for introducing a mixture of liquid and gas into a column provided with an inlet nozzle and with a horizontal gas/liquid contact tray arranged in the column below the inlet nozzle provided with a number of elongated downcomers between... | 05/14/2002 |
| 6338828 | Reactor distribution apparatus and quench zone mixing apparatus A quench zone mixing apparatus is supported within a vessel of a reactor by a support structure that includes a concentric hub, which may be formed to act as a torsion tube, and at least a first set of radial beams extending radially outward from the hub ... | 01/15/2002 |
| 6098965 | Reactor distribution apparatus and quench zone mixing apparatus A quench zone mixing apparatus that occupies a low vertical height and has an improved mixing efficiency and fluid distribution across the catalyst surface includes a swirl chamber, a rough distribution network, and a distribution apparatus. In the swirl ... | 08/08/2000 |
| 5702647 | Multiple downcomer high performance tray assembly A multiple downcomer tray assembly for vapor liquid contact towers. The downcomers are constructed with support baffles enabling the downcomer tray to be supported therefrom. The support baffles include a generally centralized aperture formed therethrough... | 12/30/1997 |
| 5514305 | Bubble tray An improved bubble tray for use in a vertically or horizontally oriented absorber, contactor or fractionation vessel for intimately contacting a gas with a liquid, the gas traveling upwardly in the vessel while the liquid flows downwardly, including a hor... | 05/07/1996 |
| 5409674 | Reactor for preparing chlorine dioxide by reacting alkali chlorate with acid The reactor comprises a plurality of gas-permeable plates, which define reaction stages, which are connected by overflow lines. An annular duct for effecting a gas distribution is provided on at least one plate. The outer wall and the inner wall of the an... | 04/25/1995 |
| 5314666 | Method and apparatus for treating hydrocarbon gas streams contaminated with carbonyl sulfide An apparatus for treating hydrocarbon gas containing carbonyl sulfide with hot aqueous absorbent at hydrolysis gas containing carbonyl sulfide hydrolysis of carbonyl sulfide to carbon dioxide and hydrogen sulfide and formation of hydrolysis product gas, a... | 05/24/1994 |
| 5304353 | Apparatus for increasing the yield and the production potential of urea reactors Urea is formed by the synthesis of ammonia with carbon dioxide at high pressure and temperature in an internal space of reactors through which flow a liquid phase cocurrently with a gas phase. The reactors are divided into compartments to avoid excessive ... | 04/19/1994 |
| 5192466 | Method of and apparatus for flow promotion Method of and apparatus for imparting directional liquid flow on a chemical process tower tray. A series of raised tray areas are disposed about the tray surface for affecting preferential vapor flow therethrough. The raised tray regions are constructed w... | 03/09/1993 |
| 5185017 | Gas-liquid contact apparatus Disclosed is a gas-liquid contact apparatus wherein trays are disposed in the form of column plates inside a column, a cap having a cover but not bottom and equipped with a large number of guide blades at its side portion is disposed at the hole portion o... | 02/09/1993 |
| 5158714 | Vapor-liquid distribution method and apparatus A vapor-liquid distribution method and apparatus utilize a cap assembly for attachment over an opening in a deck tray of a gas-liquid contact apparatus (e.g., catalytic reactor). The cap assembly comprises a riser located over the opening in the deck tray... | 10/27/1992 |
| 5152967 | Interzone mixing device The interzone mixing device of the present invention is positioned in a multi-zoned vessel for flow of fluid generally vertically therethrough. The interzone mixing device includes a horizontally disposed first plate that has a central opening in it and a... | 10/06/1992 |
| 5130102 | Catalytic distillation reactor To achieve good liquid-vapor contact and at the same time better utilize the heat of reaction in a distillation column reactor a system is provided wherein a reaction tray and distillation tray are "coupled" by a continuous liquid level between the two. A... | 07/14/1992 |
| 5116393 | Absorber for dehydrating gas with liquid desiccant An improved absorber for contacting gas having water entrained therein with a liquid desiccant the absorber being in the form of an upright vessel having a generally horizontal partition dividing the vessel interior into a treating zone and a collection z... | 05/26/1992 |
| 5100629 | Ebullated bed grid plate and skirt to prevent flow maldistribution and catalyst attrition An ebullated bed reactor into which is introduced a mixture of a gaseous substance, such as hydrogen-rich gases, and a liquid substance, such as vacuum reduced crude or resid, beneath a grid plate disposed in the reactor. Bubble cap risers extend through ... | 03/31/1992 |
| 5045247 | Bubble cap assembly A bubble cap assembly for attachment over an opening in a deck tray of a gas-liquid contact apparatus. The bubble cap assembly comprises a riser located over an opening providing fluid communication from a lower surface of the deck tray to an upper surfac... | 09/03/1991 |
| 4933047 | Chimney tray hat The invention therefore relates to a chimney tray hat apparatus for de-entraining droplets of liquid entrained in a stream containing vapor and liquid droplets flowing upwardly through a tray chimney in a vapor/liquid processing device, the chimney tray h... | 06/12/1990 |
