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Class 202/158 - Column


Subclass of Class 202 - Distillation: apparatus
Definition: A system of separatory distillation apparatus comprising
No. of patents: 393
Last issue date: 12/27/2011


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NumberTitleIssue Date
8083901De-entrainment tray for high capacity operation
A de-entrainment device separates entrained liquid from vapor in a fluid stream that flows through a chimney tray in a distillation tower. The separated liquid is collected and shielded from the fluid stream to prevent re-entrainment of the liquid in the vapor flowi...
12/27/2011
8052845Reflux divider for a column having portions for the transfer of material arranged in parallel
The reflux divider for a separation column has portions for the transfer of material arranged in parallel which are mutually bounded by a vertical dividing wall and which include members for the controlled dividing of a liquid to be treated. A reflux divider feeds p...
11/08/2011
7981253Distillation tower baffle
An improved de-entrainment device for use in distillation towers, especially vacuum distillation towers used for fractionating petroleum atmospheric resids is in the form of a baffle which is to be located in the portion of the tower below the feed zone and at the t...
07/19/2011
7909966Apparatus for catalytic distillation processes
The invention disclosed relates to catalytic distillation column internals providing improved liquid reaction mixture and catalyst contacting for simultaneous catalytic reaction and separation of the reaction mixture. The invention is an improved catalytic distillat...
03/22/2011
7476297Device and method for carrying out heterogeneously-catalysed reactive distillations in particular for the production of pseudoionone
A column is described for carrying out reactive distillations in the presence of a heterogeneous particulate catalyst having an ordered packing or random packings which form intermediate spaces in the column interior, the quotient of the hydraulic diameter for the g...
01/13/2009
7431805Method and apparatus for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures
A method, system, and apparatuses for simultaneous heat and mass transfer utilizing a carrier-gas at various absolute pressures are described. A method may include: thermally coupling at least two continuous contacting apparatuses together; varying the pressure betw...
10/07/2008
7422197Divided wall exchange column
A divided wall exchange column includes a dividing wall strengthened by stiffening members and/or a double wall design to better withstand pressure differentials and minimize temperature differentials. When a double wall is used, cost of manufacture and installation...
09/09/2008
7410555Process and apparatus for catalytic distillations
A process for reacting a first component with itself or a second component to produce a third component in which a first material comprising a first component or said first component and a second component is fed to divided wall column having a catalytic distillatio...
08/12/2008
7370846Parallel 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
7357378Divided wall exchange column
A divided wall exchange column includes a dividing wall strengthened by stiffening members and/or a double wall design to better withstand pressure differentials and minimize temperature differentials. When a double wall is used, cost of manufacture and installation...
04/15/2008
7351310Rectificative separation of fluids comprising (meth) acrylic monomers
A process for rectificatively separating fluids including (meth)acrylic monomers in a rectification column by directly cooling the vapor including (meth)acrylic monomers rising to the top of the rectification column to form top condensate including (meth)acrylic mon...
04/01/2008
7339088Alkylbenzene refining process and apparatus
Improved processes and apparatus use a finishing column with a mid-cut that provides alkylbenzene products of high purity containing less than about 1 ppmw benzene and less than about 50 ppmw heavies while accommodating enhancements in the efficiencies and the capac...
03/04/2008
7329330Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone
A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in order to obtain the corresponding pure products, the working-up by di...
02/12/2008
7287534Cleaning of apparatus in which meth(acrylic) acid-containing organic solvents have been treated and/or generated
A process for cleaning apparatus in which (meth)acrylic acid-containing organic solvents have been treated and/or generated and contain fouling and/or polymer and residues of organic solvent, in which the apparatus contents are subjected to a steam distillation in t...
10/30/2007
7287747Partition 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
7288169Distillation apparatus for readily polymerizable compound
A distillation apparatus for subjecting a crude readily polymerizable compound to distillation under vacuum conditions to purify the same includes a distillation column and a vacuum generator, an exhaust gas conduit of the vacuum generator being connected to a conne...
10/30/2007
7282118Method 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
7275400Washing apparatus
The present invention relates to an apparatus for treating, refreshing or cleaning fabric articles, especially articles of clothing, linen and drapery. ...
10/02/2007
7270316Distillation 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
7267746Dividing wall distillation column control apparatus
A control apparatus and control method for controlling the separation in a dividing wall distillation column of at least two feeds into at least three products is disclosed. The apparatus uses a temperature measuring device to measure the temperature of fluid in the...
09/11/2007
7264696Dividing-wall column with feed in whole or in part in the vaporous state and/or side stream take off in whole or in part in the vaporous state
A dividing-wall column having a dividing wall which is essentially disposed along the long direction of the column is proposed, which divides the column interior into a feed part, a take off part, an upper shared column part and a lower shared column part, with feed...
09/04/2007
7255777Distillation system
Improved HETP is obtained in the operation of a distillation column containing trays with a packing of a porous container containing a particulate material intimately associated with a resilient component having at least 50 volume % open space, preferably at least 7...
08/14/2007
7249469Method for separating a multicomponent stream
This invention relates to a method for separating a stream having benzene, toluene and alkyl benzene, said method comprising: feeding the stream into a first distillation column, wherein the stream comprises between about 60 mole percent to about 85 mole percent tol...
07/31/2007
7238773Countercurrent stripping pipe
Countercurrent stripping pipe for removing volatile organic constituents from reaction products, having a column pipe (201) composed of a plurality of pipe sections (201a-d), in which trays (202) are arranged, connections (205, ...
07/03/2007
7237603Heat exchanger of ventilating system
A heat exchanger of a ventilating system includes a plurality of heat exchange plates which are laminated at a predetermined interval, a first heat exchange portion which is positioned among the heat exchange plates and through which outdoor air passes and a second ...
07/03/2007
7235158Perforated 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
7234692Column 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
7234691Radial-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
7232115Gas-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
7226567Multi-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
7207192Secondary deethanizer to debottleneck an ethylene plant
A process for deethanizing light hydrocarbons comprising olefins is disclosed. A feed stream, comprising ethylene, ethane, propylene, and propane, is supplied to a primary deethanizer 24, having absorption and stripping sections. The absorption section produc...
04/24/2007
7204477Parallel 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
7186328Process for the regeneration of an adsorbent bed containing sulfur oxidated compounds
A process for the cyclical regeneration of an adsorbent bed containing sulfur-oxidated compounds. The adsorbent bed is used to adsorb and separate sulfur-oxidated compounds from a hydrocarbonaceous stream to produce an adsorbent having adsorbed sulfur-oxidated compo...
03/06/2007
7163606Process for recovering methylene chloride
A system for recovering methylene chloride from an aqueous waste stream is disclosed. The system includes a distillation unit, at least one heat transfer unit, receptacles for methylene chloride and waste product, a temperature probe and a controller configured to s...
01/16/2007
7160524Process and apparatus for the production of butylacetate and isobutylacetate
The invention relates to an apparatus for the production of butylacetate by esterification of acetic acid with butanol in the presence of a solid acidic catalyst in which distillatory separation of components runs simultaneously with esterification. Thus, acetic aci...
01/09/2007
7137622De-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
7132038Method and device for obtaining 1,3 pure butadiene from 1,3 raw butadiene by distillation
A process for obtaining pure 1,3-butadiene from crude 1,3-butadiene by distillation is carried out in a dividing wall column in which a dividing wall is located in the longitudinal direction of the column to form an upper common column region, a lower common column ...
11/07/2006
7129387Low capital implementation of distributed distillation in ethylene recovery
An apparatus for recovering ethylene from a hydrocarbon feed stream, where the apparatus is a single distillation column pressure shell encasing an upper region and a lower region. The upper region houses an ethylene distributor rectifying section and the lower regi...
10/31/2006
7125005Contact 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
7118654Riser base
A chimney tray for a column for thermal treatment of a liquid. The chimney tray includes a total take-off of liquid by a drain connection arranged at an edge of the chimney tray, and having one or more drain channels having a gradient in a direction of the drain con...
10/10/2006
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