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| Number | Title | Issue Date |
| 8066264 | Contact tray for a mass transfer column The valve cover has a pair of tabs at the ends that are inserted into end sections of an orifice in the tray deck. The tabs of the valve cover abut against the underside of the tray deck while a pair of sloped portions of the valve cover rest on the top side of the ... | 11/29/2011 |
| 7770873 | Tray apparatus, column with same and method of assembling and using A vapor-liquid contact tray apparatus having a tray with a fluid infeed section and a fluid travel section together with downcomer which is in fluid communication with the fluid travel section of the tray. A redirecting baffle is positioned at an inlet opening of th... | 08/10/2010 |
| 7540477 | Tray valve for a tray column The tray valve for a tray column includes an opening in a tray for a vapor passage and a valve body that is made to match the tray opening. The valve body consists of a top plate and vertically downwardly directed guide limbs arranged at the edge of the plate. The g... | 06/02/2009 |
| 7540476 | Valve for a contact tray The valve for a contract tray employs an aperture in a deck that is of rectangular or trapezoidal shape with upstanding walls at the sides of the aperture. The valve body is disposed in the aperture with a cover above the aperture and legs that extend downwardly to ... | 06/02/2009 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6948705 | Gas/liquid contacting apparatus The lower, liquid collecting section of a gas/liquid contacting column has an entrained substance depleting duct extending therearound wherein gas, for example, steam is fed by the duct into the lower section, steam depleted by gravity of liquid droplets, is deflect... | 09/27/2005 |
| 6846348 | Compressor/drier system and absorber therefor A system for delivering dry compressed gas is provided, the gas being separated from any entrained liquid lubricant and then passed through a moisture absorber column to interact with a moisture-removing fluid. The fluid is a liquid lubricant or is maintained in a s... | 01/25/2005 |
| 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 |
| 6588735 | Gas-liquid tray This invention relates to a gas-liquid contact tray having a bubble area and a downcomer having a downcomer opening, in which a self-draining vent tube is present in the downcomer and fluidly connects the upper portion of the downcomer with a space above ... | 07/08/2003 |
| 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 |
| 6422539 | Tray attachment apparatus An apparatus for connecting adjacent tray panel of a fractionation tray within a distillation column tower for the separation between a vapor and liquid is provided. A first interlocking panel has an alignment area with at least one alignment slot toward ... | 07/23/2002 |
| 6270062 | Fluids contacting, tray opening, fluid dispersing assembly A fluids contacting and dispersing apparatus for a fluids contacting column is provided comprising a perforated cover plate, means for positioning the cover plate over a tray opening and securing it within the opening. Deflecting members span each perfora... | 08/07/2001 |
| 6214174 | Purifier and purifying method for polymerizable organic compounds A distillation column is arranged so that a liquid hole which allows liquid containing a polymerizable organic compound to flow from on a tray supporting member downward is formed in a part of the tray supporting member, for example, a support ring, so th... | 04/10/2001 |
| 6193222 | Gas-liquid contact tray and method A gas-liquid contact tray having a substantially planar deck, a plurality of apertures extending through the deck, and a plurality of valve covers disposed over the apertures. The deck has an upper surface and a lower surface. Each of the valve covers has... | 02/27/2001 |
| 6189872 | Froth activator apparatus and method The present invention provides an apparatus for use in the contact between a vapor and a liquid. In one embodiment, a column is provided having a generally vertical shell. A plurality of vertically spaced, horizontal fluid contacting trays for contacting ... | 02/20/2001 |
| 6145816 | Fluids contacting, tray opening, fluid dispersing assembly A fluids contacting and dispersing apparatus for a fluids contacting column is provided including a perforated cover plate, a device for positioning the cover plate over a tray opening and securing it within the opening. Deflecting members span each perfo... | 11/14/2000 |
| 6068244 | Tray attachment apparatus An apparatus for connecting adjacent tray panel of a fractionation tray within a distillation column tower for the separation between a vapor and liquid is provided. A first interlocking panel has an alignment area with at least one alignment slot toward ... | 05/30/2000 |
| 6053485 | Apparatus for tray valve attachment An apparatus and method for attaching a dispersion valve to a fractionation tray surface. The valve is inserted into a fractionation tray perforation. At least two legs extend downward from a cover plate with a larger area than the perforation. Each of th... | 04/25/2000 |
| 5948211 | Distillation column downcomer having liquid permeable wall A downcomer having a screened or otherwise liquid permeable wall is provided for use in a mass transfer or distillation column. The liquid permeable wall provides another avenue for liquid to be removed from the downcomer to increase the liquid handling c... | 09/07/1999 |
| 5911922 | Mass transfer device A mass transfer device is provided in the form of a tray having moveable valves which includes perforations spanned by bridge members shaped to divert liquid flowing in the design flow direction around the perforation such that gas rising through the perf... | 06/15/1999 |
| 5632935 | Vapor-liquid contact tray and downcomer assembly and method employing same A vapor-liquid contact tray and downcomer assembly is provided with ramps which serve to impart a horizontal directional flow to the liquid exiting the downcomer and/or the vapor passing through the tray. The downcomer includes a bottom plate which closes... | 05/27/1997 |
| 5547617 | Apparatus for increasing effective active area A downcomer-tray assembly for vapor liquid contact towers with enlarged effective active areas. The downcomers are constructed with support baffles enabling intermediate areas of the downcomer-tray to be supported therefrom and outer areas of the downcome... | 08/20/1996 |
| 5480595 | Vapor-liquid contact tray and downcomer assembly and method employing same A vapor-liquid contact tray and downcomer assembly is provided with louvres which serve to impart a horizontal directional flow to the liquid exiting the downcomer and/or the vapor passing through the tray. The downcomer includes a bottom plate which clos... | 01/02/1996 |
| 5453222 | Contact tray apparatus and method A downcomer tray assembly for vapor liquid contact towers. The downcomer is formed with generally semi-conical walls forming a vapor tunnel relative to the discharge region therebeneath. The discharge region is also constructed with a trough and a plurali... | 09/26/1995 |
| 5360583 | High capacity tray for gas-liquid contact apparatus In a crossflow gas-liquid contact tower, liquid moves horizontally across a plurality of vertically spaced trays, and downwardly from tray-to-tray while gas flows up through openings in the trays to create a liquid-vapor mixture in an active bubble area. ... | 11/01/1994 |
| 5308451 | Fractionation tray for catalytic distillation A device for use in a fractional distillation column or a column used to perform catalytic distillation. One or more of the downcomers of a multiple downcomer type fractionation tray is employed as a liquid collection device to remove liquid from the colu... | 05/03/1994 |
| 5120474 | Valve-tray assembly A valve-tray assembly for vapor liquid contact towers. The active area of the tray beneath an upper downcomer is constructed with directional thrust valves facilitating oriented vapor flow therethrough and improving mass transfer efficiency. The valves in... | 06/09/1992 |
| 4874583 | Bubble cap assembly in an ebullated bed reactor A bubble cap assembly and distributor plate is revealed uniquely suited for a reactor in an ebullated bed process. In the riser of the bubble cap assembly a ball check valve is mounted on a valve seat. An orifice mixer below the valve seat delivers a homo... | 10/17/1989 |
| 4620952 | Gas liquid contact tray and method A gas liquid contact tray and method of using the tray and columns containing the tray, which gas liquid contact tray is characterized by high tray efficiency and capacity and a wide turndown ratio, and which tray comprises: a tray deck containing a plura... | 11/04/1986 |
| 4557875 | Phase-contacting plate for a phase-contacting column Phase-contacting plates are defined by a plurality of pivotable flow-blocking members arranged in alternating rows in which the respective blocking members thereof pivot in opposite direction to the respective blocking members of adjacent rows, the respec... | 12/10/1985 |
| 4511435 | Non-flooding distilling column A Snyder-type distilling column having improved floating ball vapor valves. When used in a standard Snyder-type column, the valve comprises a spherical upper portion and a downwardly extending guide stem. When used in a microcolumn, the upper portion is m... | 04/16/1985 |
| 4382901 | Mass transfer equipment Mass transfer equipment comprises a base (3) having at least one riser (1) with inwardly elongated sloping sides and a moveable valve cap (2) positioned above the riser (1), having outwardly and downwardly elongated sloping sides. Legs (5) extend downward... | 05/10/1983 |
| 4344900 | Fractionator tray valve A movable valve body or fractionator tray bubble cap or element is equipped with downwardly extending legs or members dependent therefrom so shaped and arranged as to present and place in juxtaposition with an opening in a fractionator plate or tray a per... | 08/17/1982 |
| 4311564 | Distillation process and apparatus for a barge-mounted plant A distillation tray is described which is suitable for use in a distillation column of a barge-mounted plant. This distillation tray is provided with a plurality of cup-like cavities, each cavity having an apertured bottom for upward passage of vapor and ... | 01/19/1982 |
