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| Number | Title | Issue Date |
| 8136799 | Multiple downcomer tray A multiple downcomer tray for a mass transfer column includes a mass transfer area and a plurality of downcomers for collecting and discharging a fluid from the tray. Each downcomer is shaped as a channel with an end wall attachable to an extension element. A downco... | 03/20/2012 |
| 8020838 | Contacting stages for co-current contacting apparatuses Improved contacting stages for carrying out vapor-liquid contacting are described. Particular aspects are directed to co-current vapor-liquid contacting devices with non-parallel contacting stages that provide an efficient usage of column space for fluid flow and co... | 09/20/2011 |
| 7377498 | Device in process engineering column The liquid distributor includes a plurality of parallel spaced apart passages for receiving liquid, at least one carrier beam disposed transversely of and over the walls of the passages and at least one sheet metal plate slidably mounted on one of walls of the carri... | 05/27/2008 |
| 7370868 | Cam bolt assembly A cam bolt assembly for use in a vehicle's suspension system. The cam bolt assembly is used to adjust the vehicle's wheel alignment. The assembly has a threaded fastener defining a pair of longitudinal channels, a first cam plate is coupled to the threaded bolt, a s... | 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 |
| 7287746 | Device in a process engineering column The device is arranged in a process engineering column (10) and serves in particular for the guiding of liquid. This device includes at least two parts (1, 2) made of sheet metal and releasably connected to one another. A recess (12) is arranged... | 10/30/2007 |
| 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 |
| 7282118 | Method for production of easily polymerizable substance and purification apparatus This invention resides in providing a method for the prevention of possible polymerization of the easily polymerizable substance during the purification thereof by a column provided with (a) at least one tray directly fixed to a support ring with a bolt and a nut an... | 10/16/2007 |
| 7279075 | Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers In a thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers, in a separating column containing sieve trays as separating internals, at least some of the sieve trays are operated ... | 10/09/2007 |
| 7276210 | Stripping apparatus and process A stripping apparatus for desorbing gases from solid particles through which flows counter-currently a stripping fluid is described, which comprises a series of sets of at least two parallel, segmented, baffle plates each, with the segmented baffles being oriented s... | 10/02/2007 |
| 7270316 | Distillation column tray configuration A new tray configuration for a distillation column that utilizes the entire column cross section area as active tray area for vapor/liquid contact. The new tray configuration has no downcomers and utilizes a liquid/vapor seal pan(s) located in the vapor space of the... | 09/18/2007 |
| 7270315 | Exchange column, perforated tray assembly In, for example, a gas-liquid, liquid/liquid exchange column, perforated tray assemblies are provided which have a plurality of adjacent tray sections with slots adjacent rounded leading edges of the sections, and catches extending along trailing edges which interlo... | 09/18/2007 |
| 7267330 | Split ring seal A split ring seal having a structured split formed with first and second overlapping leaves, movable between a compressed state and an expanded state, and having a first bore through the first leaf and a second bore through the second leaf such that, in the compress... | 09/11/2007 |
| 7235158 | Perforated tray column without downcomer A perforated tray without downcomer having only a small deviation between the opening ratio based on the diameter of a column and the actual opening ratio and a perforated tray column without downcomer formed by disposing such perforated trays without downcomer are ... | 06/26/2007 |
| 7234691 | Radial-crossflow distillation trays for divided wall column applications An assembly of trays in a divided wall column having an inner column wall, a dividing wall, and an interior space includes: a first tray having at least one radial downcomer adjacent the dividing wall and extending radially toward the inner column wall a first subst... | 06/26/2007 |
| 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 |
| 7232115 | Gas-liquid contacting tray A gas-liquid contacting tray equipped with downcomers having sidewalls with liquid outlet openings, which openings are provided with a liquid guiding device such as a lip or a spout. In one embodiment the contacting tray constitutes an upper tray having downcomer(s)... | 06/19/2007 |
| 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 |
| 7155801 | Method for releasably connecting a column plate to a supporting ring in a column via a clamp A method for using a clamp for detachable connection of a column tray to a support ring in a column including using a clamp which includes a bolt lower clamp part connected to the bolt. The lower clamp part has at least one orifice through which a liquid present in ... | 01/02/2007 |
| 7137622 | De-entrainment of liquid particles from gas A multi-tray distillation unit having a separator for de-entraining liquid particles which are picked up by an upwardly flowing gaseous stream which is flowing countercurrent to a descending liquid flow in the unit. The separator which is placed above the contact pl... | 11/21/2006 |
| 7125005 | Contact tray having tray supported downcomers A plurality of fluid-fluid contact trays of the cross-flow type are provided for mounting within a shell of a mass transfer or heat exchange column. The trays include tray decks that may be supported on rings fixed to an inner surface of the shell and downcomers tha... | 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 |
| 7066988 | Segmented plate for assembly within a confined area having limited access A segmented plate adapted for assembly within a confined area or volume, and a method of assembly of the segmented plate. The plate, as assembled, has an exterior perimeter that includes exterior edge-boundaries of a plurality of generally rigid plate-sections, each... | 06/27/2006 |
| 7055810 | Expansion ring for mass transfer column and method employing same A mass transfer column (10) is provided with at least one vapor-liquid contact tray (12) that is disposed within the open internal region (14) defined by a shell (16) of the column (10). At least one expansion ring (26) unde... | 06/06/2006 |
| 7028995 | Vapor-liquid contact trays and method employing same A mass transfer column (20) is provided with an external shell defining an open internal region. Centrifugal contact trays (26) and return contact trays (28) are positioned in an alternating and vertically spaced apart relationship within the op... | 04/18/2006 |
| 7018435 | Mixing device Described is a mixing device for mixing a gaseous stream of a fuel and an oxidant that has a cylindrical mixing chamber, means for injecting a gaseous stream of the fuel tangentially along the inner surface of the wall of the mixing chamber, and means for injecting ... | 03/28/2006 |
| 7004988 | Gas-liquid separator A gas-liquid separator having two or more vertically spaced rows of parallel horizontally spaced upwardly facing gutters, the gutters having an upwardly extending gutter wall, wherein the upper end of the gutter wall is provided with a U-turn deflector. ... | 02/28/2006 |
| 6994331 | Vapor-liquid contact trays for mass transfer column and method employing same A mass transfer column (20) is provided with an external shell (22) defining an open internal region (24). Centrifugal contact trays (26) and return contact trays (28) are positioned in an alternating and vertically spaced apart re... | 02/07/2006 |
| 6969495 | Mat element that has a distribution function For use in a separation column, a mat element or a beam element has at least: an upper part 2; at least one distributor-collector part (3) having one or more secondary orifices (7i) and at least one main orifice (6), whereby the pa... | 11/29/2005 |
| 6942762 | Method for the production of a salt-free aqueous hydroxylamine solution A process for preparing a salt-free aqueous hydroxylamine solution by distilling an aqueous solution of a hydroxylammonium salt and a base in a tray column having at least two mechanical trays, wherein random or structured packings are located above at least one tra... | 09/13/2005 |
| 6929142 | Removable hatch cover for an internal floating roof manway A hatch cover for deployment over a hatchway formed in a floating roof liquid storage tank permits rapid loading and unloading of inspection or maintenance equipment and minimizes vapor emissions from the tank. The portable hatch cover has two base plates movably co... | 08/16/2005 |
| 6923852 | Flue gas desulfurization system with a stepped tray A stepped, perforated tray is provided for increasing the available gas-slurry contact area in a flue gas desulfurization chamber. The tray redirects the horizontal flow upwardly through the tray for increased surface area and contact time with slurry for removing S... | 08/02/2005 |
| 6902154 | Gas-liquid contact tray having multiple downcomers Gas-liquid contact tray comprising a bubble area and a plurality of downcomers having a downcomer opening, which downcomer openings are spaced in the bubble area, such that, when in use, a liquid enters the downcomer opening from opposite sides of the downcomer open... | 06/07/2005 |
| 6866254 | Gas-liquid contact tray A gas-liquid contact tray having a bubble area and one or more downcomers provided at its upper end with a downcomer opening for receiving liquid, wherein the downcomer opening and downcomer are provided with a flow directing plate, wherein the flow directing plate ... | 03/15/2005 |
| 6863267 | Gas-liquid contacting tray Gas-liquid contacting tray having a bubble area and one or more rectangular downcomers which are longer in length than in width, which downcomers have two sloped downcomer walls along their length, a downcomer opening at tray level and one or more downward directed ... | 03/08/2005 |
| 6830607 | Slurry tray and slurry tray assembly for use in fractionation towers A slurry tray and a method for removing residual vinyl chloride monomer from a polyvinylchloride resin slurry with reduced discoloration of the polyvinylchloride resin is provided. The slurry tray preferably includes partitioned channels that cause the slurry to flo... | 12/14/2004 |
| 6817596 | Tray column The tray column (1) has downcomers (3) for transporting a liquid between adjacent trays (2). The liquid transport takes place in each downcomer through a plurality of discharge apertures (32) onto a loaded tray. Liquid flows out of the di... | 11/16/2004 |
| 6783120 | Multiple downcomer fractional distillation tray and process The performance of multiple downcomer fractional distillation trays is improved by intercepting the liquid egressing from the bottom of the downcomers in a manner which directs a portion of the liquid along the major axis of decking of the next lower tray. This is a... | 08/31/2004 |
| 6755943 | Perforated tray without downcomer, perforated tray tower without downcomer A perforated tray without downcomer in accordance with the present invention satisfies following conditions: (a) The hole has a diameter of 10 mm to 25 mm. (b) Two adjacent holes are spaced by a distance of 1.2 d to 3 d, measured between the two centers. (c) The tra... | 06/29/2004 |
