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| Number | Title | Issue Date |
| 7793517 | Multiple reflux stream hydrocarbon recovery process An ethane recovery process utilizing multiple reflux streams is provided. Feed gas is cooled, partially condensed, and separated into a first liquid stream and a first vapor stream. First liquid stream is expanded and sent to a demethanizer. First vapor stream is sp... | 09/14/2010 |
| 7669438 | Method and apparatus for anesthetic gas reclamation with compression stage A method and apparatus are disclosed for recovering and separating anesthetic gas components from waste anesthetic gases to be purged from a healthcare facility. Prior to a condensation step, a compressor is used to increase the waste anesthetic gas pressure in orde... | 03/02/2010 |
| 7644594 | Method and apparatus for self-contained anesthetic gas reclamation A method and apparatus are disclosed for recovering and separating anesthetic gas components from waste anesthetic gases to be purged from a healthcare facility. With minimal reliance on the utility infrastructure and supplies of a healthcare facility, the method an... | 01/12/2010 |
| 7628034 | Method of low flow anesthetic gas scavenging and dynamic collection apparatus therefor A method and system for removal of nitrous oxide and volatile halocarbon gas components from waste anesthetic gases using a low-flow scavenging or reclamation system preferably including an intelligent waste anesthetic gas collection unit fluidly coupled between eac... | 12/08/2009 |
| 7610775 | Distillation process using microchannel technology The disclosed invention relates to a distillation process for separating two or more components having different volatilities from a liquid mixture containing the components. The process employs microchannel technology for effecting the distillation and is particula... | 11/03/2009 |
| 7584629 | Separation of a substance mixture consisting of hydrogen chloride and phosgene The invention relates to a process for the partial or complete separation of a mixture comprising hydrogen chloride and phosgene, possibly solvents and possibly low boilers and inerts as are typically obtained in the preparation of isocyanates by reaction of amines ... | 09/08/2009 |
| 7555917 | Process for purification of anhydrous hydrogen chloride gas High boiling contaminants such as chloro-aromatic compounds are removed from a gas by compressing the gas containing the contaminant, cooling the compressed gas to reduce the temperature of the gas to at least 20° C. above the outlet temperature of a second cooling... | 07/07/2009 |
| 7493779 | Method of removing solid carbon dioxide The invention provides a method of removing solid carbon dioxide from cryogenic equipment, including the steps of: (a) introducing a stream including ethane to the cryogenic equipment to convert solid carbon dioxide to liquid form whereby a mixture of liquid ethane ... | 02/24/2009 |
| 7481074 | Self-contained distillation purifier/superheater for liquid-fill product container and delivery systems A process and apparatus for the on-site delivery of a gas having improved purity to from a container filled with liquid under pressure and integrated with a purifier. In the process a portion of the liquid is converted to vapor by reducing the pressure in the contai... | 01/27/2009 |
| 7467527 | Method and apparatus for the production of carbon monoxide and/or hydrogen and/or a mixture of hydrogen and carbon monoxide by cryogenic distillation The invention provides an installation for the production of hydrogen and/or carbon monoxide and/or a mixture of hydrogen and carbon monoxide, by separating a mixture to be processed (1) which contains at least carbon monoxide and hydrogen. Said installation ... | 12/23/2008 |
| 7461522 | Light component separation from a carbon dioxide mixture A method of separating one or more first light components from a carbon dioxide containing gaseous mixture that contains at least 30 mole percent carbon dioxide. In accordance with the method, a feed stream composed of the carbon dioxide is cooled to effect at least... | 12/09/2008 |
| 7461521 | System unit for desorbing carbon dioxide from methanol The invention relates to a system unit for desorbing carbon dioxide and other impurities from highly pressurized methanol. Said system unit comprises at least one or more expansion vessels arranged in succession, at least one heat exchanger, and at least one liquid/... | 12/09/2008 |
| 7454923 | Light component separation from a carbon dioxide mixture A method of separating one or more first light components from a carbon dioxide containing gaseous mixture that contains at least 30 mole percent carbon dioxide. In accordance with the method, a feed stream composed of the carbon dioxide is cooled to effect at least... | 11/25/2008 |
| 7407532 | Process for separating NH, and optionally also COand HO, from a mixture containing NH, COand HO The invention relates to a process for separating NH3 from a mixture containing NH3, CO2 and H2O which comprises an NH3 rectification step carried out in a NH3 separation device to which one or more s... | 08/05/2008 |
| 7380413 | Method and installation for separating a mixture of hydrogen and carbon monoxide A method for simultaneously producing hydrogen and carbon monoxide by subjecting synthesis gas to a decarbonation in a decarbonation unit, and to desiccation in a desiccation unit. After the decarbonation and the desiccation, the remaining synthesis gas components a... | 06/03/2008 |
| 7350581 | Vapor recovery system A vapor recovery apparatus for oil and gas well production that is used in combination with a liquid separator, a sales line and a holding tank includes a compressor, which is drivingly linked to an engine. A first conduit extends from fluid communication with the h... | 04/01/2008 |
| 7351310 | Rectificative 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 |
| 7343759 | Removal of volatile vapors from a storage vessel Volatile vapors are removed from a storage vessel by establishing a flow of a stream of volatile vapors from the storage vessel and directing the stream through a first low temperature condenser for condensing a portion of the stream flowing through the first low te... | 03/18/2008 |
| 7340921 | Cold box and cryogenic plant including a cold box This disclosure discusses providing safer and more accessible insulating cold boxes for cryogenic equipment. A cold box of the current invention includes a housing partially extending out of the cold box jacket wherein equipment that may need to be accessed can be l... | 03/11/2008 |
| 7337616 | System for sampling cryogenic liquids, and air separation unit provided with at least one such system A system for sampling cryogenic liquids, and an air separation unit provided with at least one such system. The cryogenic liquid is introduced into a vaporizer, through heat exchange with the compressed air. The liquid passes through the vaporizer generally downward... | 03/04/2008 |
| 7331189 | Cooling device In a cooling system having a compressor for supplying refrigerant under pressure, a condenser for condensing the refrigerant supplied from the compressor, a liquid receiver arranged to temporarily store the condensed refrigerant supplied from the condenser, an expan... | 02/19/2008 |
| 7305850 | Distillation process using microchannel technology The disclosed invention relates to a process for distilling a fluid mixture in a microchannel distillation unit, the microchannel distillation unit comprising a plurality of microchannel distillation sections, the fluid mixture comprising a more volatile component a... | 12/11/2007 |
| 7302812 | Process for production of isotopes A process for producing an isotopically enriched compound of a desired isotope includes (a) providing a cryogenic reaction zone containing a catalyst adapted to catalyze an isotope exchange reaction at a cryogenic reaction temperature, (b) feeding to the cryogenic r... | 12/04/2007 |
| 7294327 | Multi-stage cryogenic acid gas removal A relatively simple and energy efficient multiple stage cryogenic process for the purification of a hydrogen-rich stream by the removal of acid gases, mainly CO2 and H2S, by method of autorefrigeration and delivering or producing those acid gas... | 11/13/2007 |
| 7278379 | Heat exchange system An improved shell-and-tube steam instantaneous heat exchange system of a closely coupled feedback design which overheats water in the heat exchanger portion of the system and then blends the water, as needed, with proportional amounts of cold water to achieve the co... | 10/09/2007 |
| 7269972 | Plant and method for fractionating and purifying synthesis gas An plant unit for fractionating and purifying synthesis gas is described, which is comprised of a device for partially condensing synthesis gas and a device for nitrogen washing, whereat the device for nitrogen washing is adjacent to the device for partial condensat... | 09/18/2007 |
| 7266948 | Method and device for separating gases and/or liquids Method and device for separating gases and/or liquids in a vertical column (1). The top product (4) of the column (1) is cooled and partly recycled. The bottom product (3) of the column (1) is heated and partly recycled. Cooling an... | 09/11/2007 |
| 7263858 | Method and apparatus for producing a purified liquid The present invention provides generally a method and apparatus for purifying a liquid. More particularly, purification of a bulk liquid is performed by introducing a liquid stream to a purification vessel, which comprises both a distillation chamber for forming a p... | 09/04/2007 |
| 7261763 | Method for the recovery and recycle of helium and chlorine Methods for recovering and recycling helium and unreacted chlorine from a process for manufacturing optical fiber are disclosed. Helium-rich and chlorine-rich gas streams are recovered from the consolidation furnace and separated. The helium-rich stream is dried and... | 08/28/2007 |
| 7258328 | Method for designing radial distributors in mass transfer vessel Disclosed is a mass transfer vessel or a mass transfer tower, which is installed in water purification equipment, condensate water demineralization equipment, sewage treatment equipment, waste water treatment equipment, or chemical reactors to perform filtration, ad... | 08/21/2007 |
| 7237407 | Process and plant for the simultaneous production of an liquefiable natural gas and a cut of natural gas liquids This process includes the following steps: (a) the feed natural gas (101) is introduced into a first distillation column (31) which produces, as top product, a pretreated natural gas (111), which pretreated nat... | 07/03/2007 |
| 7237406 | Condenser/separator and method A condenser (10) and method for separating a fluid flow is provided. The condenser (10) maybe used for separating a cathode exhaust flow (60) into a condensed liquid (86) and a non-condensed gas (70). The condenser (10) incl... | 07/03/2007 |
| 7231785 | Column system and process for producing same Temperature related changes in dimension in a column system, having at least one separating column, a column vessel and a coldbox with coldbox casing, can be compensated for by providing for axial and/or radial movement. The column vessel is connected to the coldbox... | 06/19/2007 |
| 7219512 | Apparatus for the liquefaction of natural gas and methods relating to same An apparatus and method for producing liquefied natural gas. A liquefaction plant may be coupled to a source of unpurified natural gas, such as a natural gas pipeline at a pressure letdown station. A portion of the gas is drawn off and split into a process stream an... | 05/22/2007 |
| 7201019 | Light gas component separation from a carbon dioxide mixture A method of separating one or more light components, such as helium, from a carbon dioxide containing stream. A two-phase stream is obtained, at least in part, by cooling a pressurized feed stream to at least partially condense such stream. The stream that is subseq... | 04/10/2007 |
| 7188492 | Plate heat exchanger A plate heat exchanger for indirect heat exchange of several fluid flows (30, 40, 50) with a heat transfer medium/cooling medium (10, 20) in a heat exchanger core (9) has a plurality of heat exchange passages within the core for the heat transfe... | 03/13/2007 |
| 7141123 | Method of and apparatus for removing contaminants from surface of a substrate A cleanling apparatus for removing contaminants from the surface of a substrate includes two parts: one which produces an aerosol including frozen particles and directs the aerosol onto the surface of the substrate to remove contaminants from the surface by physical... | 11/28/2006 |
| 7118654 | Riser 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 |
| 7089762 | Multi-stage vacuum distilling, cooling and freezing processes and apparatuses for solution separation and seawater desalination Multi-stage vacuum distilling, cooling, and freezing processes for solution separation and seawater desalination are implemented through multi-stage vacuum distilling, cooling, and freezing systems. The systems are set to their initial state for implementing constan... | 08/15/2006 |
| 7076969 | System for supply and delivery of high purity and ultrahigh purity carbon dioxide A system for the supply and delivery of a high or a ultrahigh purity (UHP) carbon dioxide product stream to at least one process tool within a manufacturing facility and method comprising same is disclosed herein. In one embodiment, the system is comprised of the fo... | 07/18/2006 |
