Class / Patent application number | Description | Number of patent applications / Date published |
203087000 | WITH FRACTIONAL CONDENSATION OF VAPOR OUTSIDE STILL | 17 |
20090120780 | Splitter with Multi-Stage Heat Pump Compressor and Inter-Reboiler - A splitter system is disclosed that produces a product stream from a mixed stream of two materials with similar boiling points. A multi-stage heat pump compressor is used in combination with a bottoms reboiler and an intermediate reboiler resulting in reduced utility consumption. The appropriately placed intermediate reboiler enables use of a lower temperature heat source relative to the bottoms reboiler heat source. As a result, a lower pressure overhead vapor stream can be used to deliver heat to both the intermediate and bottoms reboilers, thereby conserving energy. The first stage of the multi-stage heat pump compressor delivers pressurized overhead vapor to the intermediate reboiler and the second stage provides pressurized overhead vapor to the bottoms reboiler. The disclosed design and method lessens the heat pump compressor power consumption and trim condenser duty for a propylene/propane splitter system by over 20%. A third stage of compression upstream of the overhead trim condenser may be used for purposes of making the column pressure and temperatures independent of the trim condenser temperature. | 05-14-2009 |
20100084258 | METHOD FOR THE CONTINUOUS SEPARATION OF MIXTURES COMPRISING MORPHOLINE (MO), MONOAMINODIGLYCOL (ADG), AMMONIA AND WATER BY MEANS OF DISTILLATION - Processes for the continuous fractional distillation of a mixture comprising morpholine (MO), monoaminodiglycol (ADG), ammonia and water from a reaction of diethylene glycol (DEG) with ammonia, the processes comprising: (i) separating off ammonia from the mixture at a top of a first distillation column K10; (ii) feeding a bottom fraction from K10 to a second distillation column K20 in which water and organic products are separated off at the top at a temperature at the top in the range from 45 to 198° C. and a pressure in the range from 0.1 to 15 bar; (iii) feeding a bottom fraction from K20 to a third distillation column K30 in which MO and organic products having a boiling point of <140° C. (1.013 bar) are separated off at the top or at a side offtake and ADG and organic products having a boiling point of >190° C. (1.013 bar) are separated off at the bottom, and (iv) feeding the MO-comprising stream which is separated off at the top or at a side offtake of the column K30 to a fourth column K40 in which organic products having a boiling point of ≦128° C. (1.013 bar) are separated off at the top and MO and organic products having a boiling point of ≧128° C. (1.013 bar) are separated off at the bottom and the bottoms from K40 are fed to a fifth distillation column K55 in which MO is separated off at the top and organic products having a boiling point of ≧128° C. (1.013 bar) are separated off at the bottom. | 04-08-2010 |
20100288624 | ACTIVATED HINGE-JOINT - A fractionation tray for use in a process column. The fractionation tray is of a type where a first fluid flows downwardly from a downcomer onto the fractionation tray and across the fractionation tray in a first direction. A second fluid flows upwardly through the fractionation tray for interaction with the first fluid. The fractionation tray includes an upper tray section, a lower tray section that is operable to removably engage the upper tray section, a joint region which includes an area of overlap between the upper tray section and the lower tray section. The joint region allows passage of the second fluid therethrough. | 11-18-2010 |
20110192712 | ALKYLATION APPARATUS, FRACTIONATION ZONE, AND METHOD RELATING THERETO - One exemplary embodiment can be a fractionation zone for an alkylation apparatus. The fractionation zone can be a column adapted to receive a feed including at least one alcohol, water, and at least one ketone. The column may provide an overhead stream including the at least one ketone and a side-stream including the at least one alcohol and water. | 08-11-2011 |
20120006673 | DIVIDING WALL DISTILLATION COLUMN FOR PRODUCING HIGH PURITY ACRYLIC ACID AND FRACTIONAL DISTILLATION METHOD USING THE SAME - There are provided a dividing wall distillation column for producing high-purity acrylic acid, and a fractional distillation method using the same. The dividing wall distillation column includes a condenser, a reboiler and a main column having a dividing wall. Here, the main column is divided into a column-top zone, an upper feed zone, an upper outflow zone, a lower feed zone, a lower outflow zone and a column-bottom zone. Also, a crude acrylic acid raw material (F) flows in a middle inflow plate NR | 01-12-2012 |
20120024690 | MULTISTAGE CYCLONIC FLUID SEPARATOR - The invention relates to a cyclonic fluid separator comprising a throat portion ( | 02-02-2012 |
20130068609 | Dividing Wall Column for Alpha-Methylstyrene and Cumene Distillation - Methods and systems for fractionating a crude alpha-methylstyrene (AMS) feed using one or more dividing wall columns are provided. The method can include introducing a crude AMS to a fractionation column, wherein the fractionation column contains a dividing wall disposed at least partially within the fractionation column such that an internal volume of the fractionation column is divided into at least a pre-fractionation section and a main fractionation section. The crude AMS can be introduced to the pre-fractionation section of the fractionation column. A light hydrocarbon can be withdrawn from the fractionation column at or proximal a first end thereof, a side-stream can be withdrawn from the main fractionation section of the fractionation column, and a heavy hydrocarbon can be withdrawn from the fractionation column at or proximal the second end thereof. | 03-21-2013 |
20130284585 | METHODS FOR PURIFYING HALOSILANE-CONTAINING STREAMS - Methods for purifying a halosilane-containing process stream are disclosed. In some embodiments, arsenic and phosphorous impurities are removed from halosilane-containing process streams by use of distillation. | 10-31-2013 |
20130292242 | DEVICE AND METHOD FOR DISTILLING TEMPERATURE-SENSITIVE SUBSTANCES - The present invention relates to an apparatus for the distillation of substance mixtures which comprise temperature-sensitive substances, where the apparatus comprises a thin-film evaporator and a fractionating column, and where the fractionating column is attached to the distillate outlet of the thin-film evaporator, and where the fractionating column has at least 3 theoretical plates, and where the pressure drop of the fractionating column during operation at an F factor of 1 Pa | 11-07-2013 |
20130292243 | DIVIDING WALL COLUMN FOR PRODUCING HIGH-PURITY NEOPENTYL GLYCOL AND MANUFACTURING METHOD USING SAME - The present invention relates to a dividing wall column for preparing high-purity neopentyl glycol, and a method of distilling neopentyl glycol. Using only one column, the dividing wall column has the same effect as when using two columns. Thus, energy and equipment costs may be reduced in the production of the high-purity neopentyl glycol as compared to a conventional process apparatus. | 11-07-2013 |
20140076709 | TRIHALOSILANE REFINING DEVICE - A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy. | 03-20-2014 |
20140076710 | TRIHALOSILANE REFINING DEVICE - A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy. | 03-20-2014 |
20140076711 | TRIHALOSILANE REFINING DEVICE - A trihalosilane refining device and a trihalosilane refining method are provided. The trihalosilane refining device can be useful in obtaining high-purity trihalosilane from a feed containing a trihalosilane while consuming a small amount of energy. | 03-20-2014 |
20140138237 | DUAL-MODE DIVIDING WALL COLUMN - The present invention relates to a dual-mode dividing wall column capable of mode switching between a dividing wall column operating mode and a conventional column operating mode, and a distillation method using the dual-mode dividing wall column, wherein when compared to the existing conventional column, the invention can reduce device costs and energy and improve productivity. Furthermore, since a mutual conversion between a dividing wall column operating mode and a conventional column operating mode is enabled without shutting down a process, an economic loss which can occur during shutdown caused by the malfunction of a device can be prevented. | 05-22-2014 |
20140262741 | HEAT TRANSFER IN DISTILLATION COLUMNS - A heat pipe is configured relative to a distillation column to adjust one or more conditions in the distillation column. | 09-18-2014 |
20150352464 | Hybrid Contact Tray for a Mass Transfer Column - A hybrid contact tray for a mass transfer column is provided. The tray has a deck for passage of liquid along a liquid flow path thereon. The deck also has a plurality of orifices for passage of ascending vapor through the tray deck. The contact tray includes a cross-current vapor-liquid mixing section having a first portion of the plurality of orifices and a co-current vapor-liquid mixing section comprising at least one co-current mixing device associated with a second portion of the plurality of orifices. The co-current mixing device includes a conduit having: a vapor inlet in fluid communication with one or more of the second portion of orifices; a froth inlet in fluid communication with the liquid flow path; a fluid outlet; and a packing material within a co-current flow path of vapor and liquid within the conduit disposed after the vapor and froth inlets and before the fluid outlet. | 12-10-2015 |
20160001197 | THIN-FILM TREATMENT OF HIGH-VALUE GLYCOL AND AMINE SOLVENTS TO REMOVE CONTAMINANTS - A method cleaning a contaminate solvent used to treat a gas stream, for example a contaminated glycol or a contaminated amine stream, by vacuum evaporation using a mechanically-maintained horizontally-orientated thin film evaporator, where the contaminant material is recovered from the thin film in solvent- free form, as either a heavy organic material or as free flowing salts. | 01-07-2016 |