Class / Patent application number | Description | Number of patent applications / Date published |
202158000 | Column | 39 |
20080271983 | COLLECTOR-DISTRIBUTOR COMBINATION - A collector-distributor combination in a column, which is filled with a random packed bed or with a structured packing, is disclosed. The liquid phase is guided over a collector with inclined planes to a central opening, which is connected to an ascending pipe, from which the liquid phase is distributed to the plane underneath via the distributor pipes. By guaranteeing a constant filling level of the liquid phase in the ascending pipe, the distributor functions as a pressure distributor. The liquid phase is distributed independent of the inclination of the column over the entire length of the distributor pipes. The gaseous phase passes through the collector via the chimney. | 11-06-2008 |
20090032386 | Xylene Production Apparatus With Integrated Feedstock Treatment - An apparatus for producing a xylene isomer, which integrates the removal of olefins into a reaction zone of the apparatus is disclosed. Apparatus of this invention enable the use of aromatic feedstocks containing olefins and reduce or eliminate the need for feed pretreatment by olefin removal assemblies or zones such as hydrotreating, hydrogenation, and clay and/or molecular sieve treating, thereby reducing capital and operating costs. | 02-05-2009 |
20090084667 | Process for manufacturing high purity methacrylic acid - A process is provided herein for the high yield production of high purity glacial methacrylic acid (“HPMAA”) that is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less. This improved process comprises providing a crude MAA stream and purifying the crude methacrylic acid stream in a series of successive distillation steps | 04-02-2009 |
20090288939 | Distillation Apparatus - The apparatus comprises at least two distillation zones located within the column shell to produce an overhead and bottoms product from the first distillation zone and an intermediate product from the second distillation zone. A partition separates the two zones to prevent mass transfer across the boundary between the zones while permitting heat transfer across the boundary. A conduit provides fluid communication between a side draw stage in the first distillation zone and the second distillation zone. | 11-26-2009 |
20100096249 | Divided Wall Columns For Smaller Sized Plants - A divided exchange column includes a shell column having a first longitudinal axis, a cylindrical wall spaced apart from and surrounding the first longitudinal axis and defining a first interior space, a first divided wall column having a second longitudinal axis substantially parallel to the first longitudinal axis, and a second divided wall column having a third longitudinal axis substantially parallel to the first and the second longitudinal axes, where the first divided wall column and the second divided wall column are positioned in the first interior space of the shell column. | 04-22-2010 |
20100219060 | Mass-exchange contact device - A mass-exchange contact device is proposed, comprising upper and lower flat ring-shaped trays attached to a column, a sleeve having windows with bottom edges in the plane of the lower tray, a barbotage unit having orifices in its sidewalls placed on the top sleeve, a movable double-acting valve including upper and lower plates connected with a rod. The barbotage unit includes an ascending limiter of valve's movement, the sleeve's bottom includes a descending limiter. Alternatively, the barbotage unit is made as a portion of the sleeve. Embodiments comprise a number of rows of the proposed devices situated one above the other, and separated by multi-layer packing fittings. The devices can be used in catalytic distillation columns, wherein the fittings are filled with catalytic material. Alternatively, the fitting is substituted with a grating supporting a catalytic granular layer. The proposed design improves device operation, reliability, durability, reduces its weight and costs. | 09-02-2010 |
20110139598 | DISTILLATION COLUMN WITH FIREBREAK DEVICE - The invention concerns a distillation column ( | 06-16-2011 |
20110220482 | Heat Exchanger - The present invention relates to the vaporization of a liquid by exchanging heat with a second fluid by means of a heat exchanger of the vertical plate type. It applies in particular to air distillation installations. | 09-15-2011 |
20110226604 | APPARATUS FOR SEPARATING PARA-XYLENE FROM A MIXTURE OF C8 AND C9 AROMATIC HYDROCARBONS - The apparatus includes at least two adsorptive separation zones to separate para-xylene from a feed stream comprising C8 aromatic hydrocarbons and at least one C9 aromatic hydrocarbon component. The first adsorptive separation zone delivers a raffinate stream to a raffinate distillation zone and an extract stream to an extract distillation zone. The raffinate distillation zone delivers a stream to the second adsorptive separation zone and at least one of the extract distillation zone and raffinate distillation zone delivers a recycle stream to the first adsorptive separation zone. | 09-22-2011 |
20110259728 | Section of a separation column, separation column and a method of operation - A separation column containing a feed distribution device and a feed distribution device for a separation column, such as a vacuum distillation column. The feed distribution device being capable of diffusing and directing a feed flow from a feed inlet so as to distribute the feed substantially evenly over the surface area of a separation plate in the column thereby increasing the columns efficiency. The separation column containing the feed distribution device being capable of shorter height, less costly design and lower operating cost than a separation column without the feed distribution device. | 10-27-2011 |
20110266131 | Heat Pump Distillation - A distillation column is disclosed. The column includes a plurality of rectification zones and corresponding stripping zones. Each rectification zone is linked to a heat pump or a stage of a heat pump. Overhead material from the top rectification zone is compressed and used to heat bottoms liquid from the bottom stripping zone. Similarly, overhead material from a lower rectification zone is compressed and used to heat liquid taken from the uppermost or top stripping zone. Optionally, overhead material from a middle rectification zone is compressed and used to heat liquid from a middle stripping zone. A single multiple stage heat pump compressor may be utilized as opposed to a plurality of heat pumps. Because the heat exchanger from each rectification-stripping zone pair has a lower duty, economical stab-in heat exchangers may be utilized. | 11-03-2011 |
20110290634 | Method For Fabricating Divided Wall Columns - The invention relates to a method producing a portioned column by forming a first segment and a third segment into arcuate segments, and attaching these arcuate segments to a second z-shaped segment to from two contiguous volumes with approximately semi-circular cross-sections that combine to form a partitioned, approximately cylindrical segment. | 12-01-2011 |
20120043196 | VERSATILE DISTILLATION CELL - The Versatile Distillation Cell introduces and extends technical resources of the “Flexible Manufacturing Cell” (set of multifunctional integrated machines with flexible, quick interchangeable tools) in distillation systems of mobile, modular, interchangeable columns with internals (trays and others) fitted with variable form and position. Rapid structural change of mobile columns and variable control of liquid-vapour ratio in internals are integrated, enabling quick on site process diversification and adjustment with easy relocation. | 02-23-2012 |
20120080303 | Systems for Recovering Silane From Heavy-Ends Separation Operations - Processes and systems for purifying silane-containing streams are disclosed with relatively less silane being lost in impurity streams by use of distillation and/or condensation operations. | 04-05-2012 |
20120325643 | Vacuum Distillation Device and Method for the Treatment of Non-Potable Water - An embodiment of a distillation system is disclosed having an influent column with an influent column first end and an influent column second end and having therein, a gas deflector. The influent column may contain at least an influent liquid and vapor from the influent liquid. The influent column first end may be in fluid communication with an influent liquid source. A distillation system is disclosed as having at least one effluent column having an effluent column first end and an effluent column second end and further comprising a condensation chamber adjacent the effluent second end. The effluent column may be positioned within the influent column and may contain at least an effluent liquid and vapor. A primary vacuum source may be in fluid communication with an influent column and positioned at an influent second end. A blower may be provided and connected to the condensation chamber. | 12-27-2012 |
20140008207 | HEAT INTEGRATED DISTILLATION COLUMN USING STRUCTURED PACKING - Heat integrated distillation column for separating components in a fluid mixture. The heat integrated distillation column is provided with a stripper part (S), a rectifier part (R) and a compressor ( | 01-09-2014 |
20140027266 | APPARATUS FOR MEASUREMENT AND CALCULATION OF DEW POINT FOR FRACTIONATION COLUMN OVERHEADS - Apparatus for controlling the operation of fractionation columns to avoid column flooding is described. The apparatus uses mass flow meters to measure the mass flow rates of the receiver vapor, and the stripper hydrocarbon liquid stream or the stripper reflux and the stripper net overhead liquid. The water from the receiver can be measured with either a volumetric flow meter or a mass flow meter. The apparatus also includes at least one computer in communication with a molecular weight analyzer or specific gravity analyzer; an overhead vapor line pressure gauge; an overhead vapor line temperature gauge; a hydrocarbon liquid outlet line temperature gauge; the stripper hydrocarbon stream mass flow meter, or the stripper reflux hydrocarbon liquid mass flow meter and the stripper net overhead hydrocarbon liquid mass flow meter; the vapor mass flow meter; and the water flow meter. | 01-30-2014 |
20140061020 | DEVICES AND METHOD FOR CONTINUOUS DISTILLATIVE SEPARATION OF A MIXTURE CONTAINING ONE OR MORE ALKANOLAMINE(S) - Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s) are described. The separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)). | 03-06-2014 |
20140346031 | Pipe, device for carrying out mass transfer processes and use of the device - The invention relates to a pipe ( | 11-27-2014 |
202159000 | With preheater | 4 |
20080308402 | PURIFICATION OF AQUEOUS SOLUTIONS OF ORGANIC ACIDS - The invention relates to a method and a device for the purification of an aqueous solution of an organic acid having a boiling point at atmospheric pressure of less than 450° C., which-further has approximately 275 g carboxylate ions/1 or less, preferably 250 g carboxylate ions/1 or less, and preferably less than 1% by weight ionic impurities, calculated on the basis of the total solution. In particular, the invention relates to a method and a device for the continuous purification and concentration, on an industrial scale, of an aqueous solution of an organic acid having a boiling point at atmospheric pressure of less than 450° C. According to the method, this solution is subjected to two or more distillation steps, the first distillation step being carried out at a temperature of from 80° to 150° C. and a pressure of from 50 to 250 mbar, and the second distillation step being carried out at a temperature of from 80° to 200° C. and a pressure of from 0.01 to 50 mbar. | 12-18-2008 |
20120090978 | METHOD AND SYSTEM FOR TREATING FEEDWATER - A system for treating feedwater includes a fluidized bed heat exchanger unit connected to receive feedwater and a flash concentrator column connected to receive feedwater discharged from the fluidized bed heat exchanger unit. A spray dryer is provided to receive a solids/liquid slurry discharged from the flash concentrator column. Feedwater can be treated by converting dissolved solids in the feedwater to suspended solids, vaporizing a portion of the feedwater to produce a solids/liquid slurry, and separating solids from the solids/liquid slurry. | 04-19-2012 |
20130037402 | Apparatus for Recovery of Organic Compounds and Drying of Organic Mass - The invention relates to an apparatus for recovery of organic compounds and drying organic mass. The apparatus comprises a dryer incorporating a dryer vessel equipped with a material inlet nozzle, a material outlet nozzle and a gas discharge nozzle. The apparatus comprises a column communicating with the gas discharge nozzle of the dryer vessel for feeding discharge gas exiting via the gas discharge nozzle of the dryer vessel to the column in order to concentrate in the column the discharge gas or the portion of the discharge gas at least partially condensed. To the gas discharge nozzle is connected a boiler for transferring the thermal energy of the discharge gas flowing through the gas discharge nozzle at least partially to the column. | 02-14-2013 |
20140339069 | SYSTEM FOR SEPARATING AND CONCENTRATING A LIQUID COMPONENT FROM A LIQUID MULTI-COMPONENT MIXTURE, COMPRISING A HEAT PUMP - In order to separate and concentrate a liquid component from a liquid multi-component mixture formed of several liquid components with different boiling temperatures, e.g. an ethanol-water mixture, a concentration apparatus ( | 11-20-2014 |
202160000 | Automatic temperature and/or pressure control | 6 |
20080277260 | FLUID DISPERSION UNIT ASSEMBLY AND METHOD - A tray valve assembly for a process column of a type wherein a first, heavier fluid flows downwardly from a downcomer onto a tray and thereacross in a first direction through which a second, lighter fluid flows upwardly therethrough for interaction and mass transfer with the heavier fluid before passing therefrom. A plurality of valves disposed across a surface of the tray and mounted above a plurality of apertures on the surface of the tray, each valve of the plurality of valves comprising a top surface and at least one securement leg. A first securement leg of is adapted to intercept the heavier fluid flow in the first direction forming a diverting baffle for engaging the heavier fluid flow across the tray. Each valve includes at least one aperture to facilitate the lighter fluid flow therefrom and further comprising a first aperture in the first securement leg. The first aperture is adapted to allow the lighter fluid to flow in a second direction to interact with the heavier fluid flow in the first direction for lighter fluid aeration thereof. Each valve includes a plurality of open side regions for allowing ascending lighter fluid flow to pass outwardly therefrom in generally oppositely dispersed directions for contact with the heavier fluid flow in the first direction and each valve is adapted to allow the ascending lighter fluid flow to pass outwardly therefrom generally in the first direction of the heavier fluid flow passing over the top surface for facilitating a propulsion of the heavier fluid flow therefrom and across the tray. | 11-13-2008 |
20080289947 | Vacuum still - A vacuum still for the distillation of grape products has a boiler to heat grape products to a temperature at which nutriments have no or minimal damage, the vapors from the vapor space of the boiler passing through three condensers in series. A vacuum is applied through the condensers in series to the vapor space of the boiler, the concentrated grape product in the boiler being processed into a food product containing the nutriments and vitamins contained in the grape product. | 11-27-2008 |
20110284361 | FRACTIONAL CONDENSATION PROCESSES, APPARATUSES AND SYSTEMS - The present invention provides fractional condensation apparatuses, systems and methods that can recover volatile products from highly diluted liquid and vapor feed mixtures with high purity and recovery yield, both in batch and continuous distillation, while being also designed to achieve low-cost and efficient recovery processes. Single apparatuses and columns can be connected to each other to expand or shrink the column length for desired separation. The apparatuses, systems and methods can be applied to separate mixtures with both narrow and wide boiling point ranges. | 11-24-2011 |
20110308930 | DIVIDING WALL DISTILLATION COLUMN - Provided is a dividing wall distillation column. The dividing wall distillation column includes a main column having a dividing wall. The main column includes a pressure equalization unit for pressure equalization between a preliminary divisional section and a main divisional section which are divided by the dividing wall. The dividing wall distillation column has an effect of enabling easier operations due to the uniform pressure drop between the two divisional sections divided by the dividing wall. | 12-22-2011 |
20120241307 | NMP DISTILLING APPARATUS - The present invention provides a distillation apparatus for NMP for regenerating a spent NMP recovered from a step of producing an electrode for lithium ion batteries which is capable of purifying the NMP in a simple and safe manner irrespective of variation in concentration of water in a raw material or throughput, and is suitable for conducting an automatic operation on-site. The distillation apparatus for NMP according to the present invention comprises a first distillation column | 09-27-2012 |
20140262729 | HEAT TRANSFER BETWEEN A DISTILLATION COLUMN AND A TEMPERATURE SOURCE - A heat pipe is configured relative to a distillation column to adjust one or more conditions in the distillation column. | 09-18-2014 |
202161000 | Partial reflux condenser | 9 |
20090114521 | Contaminated solvent recycling system - A contaminated solvent recycling system comprises a distillation vessel having a distillation zone and a separate waste collection zone and heating means for heating contaminated solvent feed within the distillation zone vessel to distill off the solvent. By separating the distillation zone from the waste collection zone, the distillation zone can be made small enough to process small consecutive batches of contaminated solvent feed whilst the waste collection zone can be made large enough to accommodate waste accumulating from the distillation process for extended periods of time between waste removal operations. | 05-07-2009 |
20090166170 | Porous honeycomb water treatment device - A porous honeycomb water treatment device washes out deposited salt automatically with high heat exchange rate to produce sufficient fresh water, a hollow, vacuum, and high pressure distillation column, where salt water alternatively heated up to 100° C. or cooled down to 0˜18° C.; a bottom product exit ( | 07-02-2009 |
20100224475 | ZONE OR SYSTEM FOR PROVIDING ONE OR MORE STREAMS - One exemplary embodiment can be a separation zone for separating a plurality of naphtha components. The separation zone can include first and second columns. The first column may include a dividing imperforate wall with one surface facing a feed and another surface facing a side stream. Typically, the wall extends a significant portion of the column height to divide the portion into at least two substantially vertical, parallel contacting sections. Also, the second column can communicate with the first column so as to provide a feed to or receive a feed from the first column. Generally, the second column is non-divided. The separation zone may provide at least four product streams. | 09-09-2010 |
20110036702 | PROCESS FOR THE RECTIFICATION OF MIXTURES OF HIGH-BOILING AIR- AND/OR TEMPERATURE-SENSITIVE USEFUL PRODUCTS - According to the invention, a process for the rectification of mixtures of high-boiling air- and/or temperature-sensitive substances which require a high separation efficiency is proposed, in particular a process for the working-up of a VE- or VEA-containing product stream. The process is characterized in particular in that, in a first purification stage, low-boiling products and unspecified isomers of the useful product are separated from the product stream virtually without loss of useful product and that, in a second purification stage, the useful product is removed in a stream having a purity of >97% by weight and a further stream having a purity of >92% by weight. A preferred embodiment of the process serves for working up VEA, in which the loss of useful product in the first purification stage is less than 5%, based on that amount of VEA in the feed which is added to the purification stage per unit time. Furthermore, the first purification stage may comprise a rectification column ( | 02-17-2011 |
20130284581 | PROCESS FOR THE RECTIFICATION OF MIXTURES OF HIGH-BOILING AIR- AND/OR TEMPERATURE-SENSITIVE USEFUL PRODUCTS - A process for the rectification of mixtures of high-boiling air- and/or temperature-sensitive substances which require a high separation efficiency is proposed, in particular a process for the working-up of a VE- or VEA-containing product stream. The process includes a first purification stage to separate low-boiling products and unspecified isomers of the useful product from the product stream virtually without loss of useful product and a second purification stage for removing the useful product in a stream having a purity of >97% by weight and a further stream having a purity of >92% by weight. | 10-31-2013 |
20140231238 | SEPARATION PROCESSES USING DIVIDED COLUMNS - The claimed invention provides a technique wherein the two column system is combined into a single column. The light components are concentrated on the prefractionation side (feed side) of the column, where they are removed as an overhead top product. The middle boiling components are removed as an overhead product on the opposite side of dividing wall. For the same product specifications, top divided column requires substantially lower capital and operating cost than a conventional two-column system. | 08-21-2014 |
20140367243 | DEPHLEGMATOR - A dephlegmator is provided comprising two stages connected in series wherein a first stage includes an air-cooled reflux condenser and a second stage includes a generally horizontal tube bundle of smooth or finned tubes that can be operated selectively in either an air-cooled (dry) mode under selected ambient conditions or in a wet evaporatively cooled mode under other selected ambient conditions including that of elevated ambient temperature. Spray nozzles may be installed above the tube bundle whereby water can be sprayed onto the tube bundle. One or more collection troughs are preferably provided beneath the tube bundle for collecting run-off water and enabling recycling of excess deluge water. Preferably, the tube bundle comprises at least two, and preferably three groups of tubes communicating with each other wherein the second group of tubes has appreciably fewer tubes in it than the first group of tubes and any third group of tubes has appreciably fewer tubes in it than the second group of tubes. | 12-18-2014 |
20150129409 | SYSTEM AND METHOD FOR RECYCLING HIGH-BOILING-POINT WASTE PHOTORESIST STRIPPER - In a system for recycling a high-boiling-point waste photoresist stripper generated in processes of manufacturing LCDs or semiconductor devices, wherein an expensive high-boiling-point stripper solvent can be easily recycled at high yield and high-purity electronic grade. This system includes a first distillation device for removing low-boiling-point impurities, a second distillation device for recycling a stripper solvent composition while removing high-boiling-point impurities, a third distillation device for removing trace water, thus recovering the stripper solvent composition, a fourth distillation device for additionally recycling a stripper solvent, thus additionally recovering a high-boiling-point stripper solvent, and a fifth distillation device for sequentially and separately recovering the stripper solvent composition recovered by the second distillation device and the high-boiling-point stripper solvent additionally recovered by the fourth distillation device. | 05-14-2015 |
20150136582 | GAS-LIQUID CONTACT DEVICE, DISTILLATION DEVICE, AND HEAT EXCHANGE DEVICE - Provided is an NMP recovery system | 05-21-2015 |
202162000 | Vapor-element by-pass | 1 |
20100163397 | LIQUID DISTRIBUTION IN CO-CURRENT CONTACTING APPARATUSES - Fluid distribution systems, and particularly those for distributing liquids into apparatuses containing modules used to carry out vapor-liquid contacting, are described. Representative liquid distribution systems comprise an extended trough having a plurality of outlet spouts that are aligned for distribution into a plurality of downcomers. The downcomers may be in non-parallel (e.g., orthogonal) alignment with respect to the trough and/or the number of troughs may be less than the number of downcomers to which fluid is distributed. | 07-01-2010 |