Class / Patent application number | Description | Number of patent applications / Date published |
095082000 | CHROMATOGRAPHY | 19 |
20090056540 | APPARATUS AND METHOD FOR SEPARATING GAS - An apparatus and a method for separating a specified gas from a gas to be treated containing the specified gas comprising at least one ingredient, which comprises allowing the gas to be treated to flow through a column without the use of another gas for transferring the gas to be treated, while keeping the inside of the column packed with a packing material at a reduced pressure. The above apparatus and method can be suitably used for separating a specified gas having a high purity at a low cost. | 03-05-2009 |
20110139001 | Process for the enrichment of isotopes - This invention relates to a process for the enrichment of isotopes by chromatography on a saturated stationary phase. The process provides a more efficient method than the existing methods. | 06-16-2011 |
20130192463 | COLLECTING DEVICE FOR GASES AND AEROSOL, METHODS OF MAKING, AND METHODS OF USE - Embodiments of the present disclosure provide for collection devices, methods of making collection devices, methods of collecting gases and aerosol particles, and the like. | 08-01-2013 |
095085000 | Including use of gas flow distributor in column | 1 |
20110048230 | PROCESS FOR STRIPPING AND RECOVERING AMMONIA FROM DIGESTED WASTES AND PLANT FOR CARRYING OUT SAID PROCESS - A process for reducing ammonia from digested wastes ( | 03-03-2011 |
095086000 | Plural separate columns | 7 |
20090107331 | Method and Apparatus for Pressure Swing Adsorption - In order to provide a new PSA method which can concentrate simultaneously a strong adsorbate such as xenon and a weak adsorbate such as nitrogen in a high concentration with a high recovery percentage when highly valuable gas such as xenon and krypton contained in the exhaust gas from a semiconductor manufacturing equipment, etc. is recovered in a high concentration with a high recovery percentage, the present invention provides a new PSA method in which the method uses a separation apparatus comprising a lower column and a upper column which are filled with an adsorbent, a material gas storage tank for storing the material gas to be introduced into the lower column, a strong adsorbate storage tank for storing a main component which is easily adsorbed by the adsorbent, and a compressor, and the strong adsorbate which is easily adsorbed by the adsorbent and the weak adsorbate which is not readily adsorbed by the adsorbent are recovered, wherein the method comprises an (a) adsorption step, (b) rinse step, (c) low column depressurization step, (d) upper column depressurization step, and (e) purge step sequentially repeated based on a predetermined sequence. | 04-30-2009 |
20100101411 | CHROMATOGRAPHY SYSTEMS AND METHODS USING THEM - Certain embodiments described herein are directed to chromatography systems that include a microfluidic device. The microfluidic device can be fluidically coupled to a switching valve to provide for selective control of fluid flow in the chromatography system. In some examples, the microfluidic device may include a charging chamber, a bypass restrictor or other features that can provide for added control of the fluid flow in the system. Methods of using the devices and methods of calculating lengths and diameters to provide a desired flow rate are also described. | 04-29-2010 |
20100186587 | METHOD AND APPARATUS FOR CHROMATOGRAPHIC COMPONENT, SEPARATION WITH PARTIAL RECIRCULATION OF MIXTURE FRACTIONS - A method for the chromatographic separation of components of a multicomponent fluid mix by means of the Simulated Moving Bed method wherein the multicomponent fluid mix and at least one solvent are fed to inflows of a plurality of chambers containing at least one solid substance and connected to each other in series to form a closed loop. An extract stream containing at least one first component separated from the multicomponent fluid mix as well as a raffinate stream containing at least one second component separated from the multicomponent fluid mix are carried out of the chambers through a first and second outflows. At least part of the raffinate stream and/or extract stream carried off at the first and/or second outflows is preliminarily stored and recirculated to the first and/or second inflow of the chambers alternately or simultaneously with the multicomponent fluid mix and/or the solvent within one clock unit. | 07-29-2010 |
20100307334 | FLUID SEPARATION METHOD AND FLUID SEPARATION APPARATUS - A fluid separation apparatus suitable for separating a mixed fluid with different properties and capable of separating a complex fluid mixture efficiently is provided. The fluid separation apparatus includes a sampling entrance, a first separation column, a second separation column, a bypass line, a detector and a guide multi-channel valve. A mixed fluid flows into the first separation column via the sampling entrance. The second separation column is connected to the first separation column in series and connected to the bypass line in parallel. The detector is connected to the second separation column and the bypass line. The guide multi-channel valve has different modes to control a flow-through status and a closed status between the first separation column and the second separation column, between the first separation column and the bypass line, between the second separation column and the detector, and between the bypass line and the detector. | 12-09-2010 |
20120017760 | Apparatus and Method for Rapid Separation and Detection of Hydrocarbon Fractions in a Fluid Stream - An apparatus and method for rapid fractionation of hydrocarbon phases in a sample fluid stream are disclosed. Examples of the disclosed apparatus and method include an assembly of elements in fluid communication with one another including one or more valves and at least one sorbent chamber for removing certain classifications of hydrocarbons and detecting the remaining fractions using a detector. The respective ratios of hydrocarbons are determined by comparison with a non separated fluid stream. | 01-26-2012 |
20130145933 | APPARATUS FOR SEPARATING OXYGEN FROM AMBIENT AIR - An apparatus for separation of gases from ambient air that has at least one separation column containing an adsorbent with an inlet at a first end and an outlet at a second end, a buffer column containing an adsorbent and having a single inlet at a first end, a vacuum pump, and a valve system that connects the vacuum pump to the outlet at the first end of the separation column, and that connects the outlet at the second end of the separation column to the single inlet at the first end of the buffer column. | 06-13-2013 |
20150369781 | MEMS FLOW CONTROL CHIP FOR GAS CHROMATOGRAPHY - A micro-electro-mechanical system (MEMS) flow control chip that can control the flow of gas and be configured to operate in a gas chromatography system are disclosed. The MEMS flow control chip can include at least one inlet port in the chip, at least one outlet port in the chip, at least one flow channel between the inlet and outlet ports, and at least one pneumatic valve in the chip for controlling a flow of gas through the flow channel and between the inlet port and outlet ports. Advantageously, the MEMS flow control chip can be positioned in an oven of the a gas chromatography system and have a temperature approximately the same as one or more chromatographic columns of the system. | 12-24-2015 |
095087000 | With heating or cooling | 5 |
20080196583 | PROCESS FOR RECYCLING OF TOP GAS DURING CO2 SEPARTION - An improved process for the separation of carbon dioxide from the flue gas of an oxy-combustion power plant is provided. The flue gas is compressed, cleaned, cooled and dried. This flue gas stream contains carbon dioxide and oxygen, and is sent to a column. This column may be a distillation column or a stripping column. This column separates the inlet stream into a top gas stream and a bottom liquid stream. The top gas from the column is combined with the inlet stream. | 08-21-2008 |
20080196584 | PROCESS FOR FEED GAS COOLING IN REBOILER DURING CO2 SEPARATION - An improved process for the separation of carbon dioxide from the flue gas of an oxy-combustion power plant is provided. An inlet stream containing carbon dioxide and oxygen is at least partially condensed in the reboiler of a stripping column. The condensed inlet stream is then separated in a separator, thereby producing a first liquid stream and a first gas stream. The first liquid stream is then separated into a top gas stream and a bottom liquid stream in the stripping column. The top gas stream is then warmed by indirect heat exchange in the heat exchanger. The warmed top gas stream is then recycled and combined with the inlet stream | 08-21-2008 |
20080257150 | PROCESSES FOR THE ADSORPTIVE REMOVAL OF INORGANIC COMPONENTS FROM HYDROGEN CHLORIDE-CONTAINING GASES - Processes for removing inorganic impurities from HCl-containing gases, which processes comprise: providing a crude gas stream comprising hydrogen chloride and at least one inorganic component; introducing the crude gas stream into an adsorber bed; adsorbing at least a portion of the at least one inorganic component from the crude gas stream on the adsorber bed to form a purified HCl gas, and removing the purified HCl gas from the adsorber bed. | 10-23-2008 |
20130000485 | Flow Control System, Device and Method for Thermal Desorption - A flow control system, method and device for performing thermal desorption is provided. In one embodiment, the system includes a first flow path in which gas flows from a first carrier gas inlet, through a first vessel in a first direction at a first flow rate to adsorb analytes on an adsorbent of said first vessel; a second flow path in which gas flows from a second carrier gas inlet, through said first vessel in the first direction at a second flow rate to further adsorb the analytes on the adsorbent of said first vessel; a third flow path in which a carrier gas flows through said first vessel in a second direction to carry desorbed analytes out of said first vessel; and wherein the second flow rate of carrier gas through said first vessel is greater than the first flow rate of carrier gas through said first vessel. | 01-03-2013 |
20150075374 | GAS CHROMATOGRAPHY USING A THERMAL GRADIENT THAT IS SUBSTANTIALLY MONOTONICALLY NON-INCREASING AND HAS A POSITIVE SECOND DERIVATIVE - A system and method for thermal gradient gas chromatography wherein a front or injection end of a column is heated to a higher temperature than a back or detector end to thereby create a thermal gradient having a profile that is substantially monotonically non-increasing and has a positive second derivative, and then providing a heat source to raise the thermal gradient and cause it to remain stationary or to travel through the column while maintaining a desired profile. | 03-19-2015 |
095088000 | Specific column packing or sorbent material (e.g., particle size, composition, etc.) | 3 |
20090056541 | Method and apparatus for high resolution flash chromatography - To make an inexpensive chromatographic column and perform chromatography with it, column walls and a column end with a port are molded integrally from plastic. A closure is integrally molded with a port as well. One type of closure includes part of a snap-on fastener integrally molded to it to cooperate with corresponding parts molded integrally with the column walls. In another type of closure for higher pressures, the closure is spin welded to the tubular walls. In still another type of closure for still higher pressures, a retaining plate is pressed into the column to hold the packing in place. The closures have channels molded into them radiating from a port and opening toward packing material such as silica beads or porous polymeric plugs. Filters and secondary seals may be located at the ends to prevent leakage of the packing material. The packing is balanced spherical or spheroid-like derivitized silica packing. | 03-05-2009 |
20100058924 | METHOD AND APPARATUS FOR SELECTIVE CAPTURE OF GAS PHASE ANALYTES USING METAL BETA-DIKETONATE POLYMERS - A process and sensor device are disclosed that employ metal β-diketonate polymers to selectively capture gas-phase explosives and weaponized chemical agents in a sampling area or volume. The metal β-diketonate polymers can be applied to surfaces in various analytical formats for detection of: improvised explosive devices, unexploded ordinance, munitions hidden in cargo holds, explosives, and chemical weapons in public areas. | 03-11-2010 |
20130133516 | FINE PARTICLES FOR CHROMATOGRAPHY AND CHROMATOGRAPHY USING SAME - The present invention provides a polymer brush-type filler which contains polymer chains at a high density and with a broad molecular weight distribution. Specifically, the present invention provides fine particles for chromatography comprising graft polymer chains obtained by grafting polymer chains via polymerization initiating groups on the surface of solid particles, wherein the graft polymer chains include specific repeating units, have a specific number average molecular weight and a specific molecular weight distribution and also have a high density of 0.03 chains/nm | 05-30-2013 |