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| Number | Title | Issue Date |
| 7600394 | System and apparatus for complete condensation of multi-component working fluids A condensation system is disclosed where a multi-component fluid is condensed to form a condensate, a portion of which is sub-cooled and mixed with non-condensable vapor in the system to reduce the accumulation of non-condensable vapor and to improve the stability a... | 10/13/2009 |
| 7581411 | Equipment and process for liquefaction of LNG boiloff gas A design for equipment and process for reliquefaction of LNG boiloff gas, primarily for shipboard installation, has high thermodynamic efficiency and lower capital cost, smaller size (volume, footprint), lower weight, and less need for maintenance than systems utili... | 09/01/2009 |
| 7555916 | Liquefying and storing a gas Apparatus and methods for improving the safety and efficiency and decreasing the cost of producing liquid gas, such as liquid oxygen, with a small-scale use liquefaction device, according to various embodiments of the present invention. In one embodiment, liquid oxy... | 07/07/2009 |
| 7478542 | System for use of land fills and recyclable materials Gases are vented from a waste site such as a landfill, and the gases are separated into at least three streams comprising a hydrocarbon stream, a carbon dioxide stream, and residue stream. At least a portion of the carbon dioxide stream and hydrocarbon stream are li... | 01/20/2009 |
| 7409834 | Helium process cycle A unique process cycle and apparatus design separates the consumer (cryogenic) load return flow from most of the recycle return flow of a refrigerator and/or liquefier process cycle. The refrigerator and/or liquefier process recycle return flow is recompressed by a ... | 08/12/2008 |
| 7389654 | System for use of land fills and recyclable materials Gases are vented from a waste site such as a landfill, and the gases are separated into at least three streams comprising a hydrocarbon stream, a carbon dioxide stream, and residue stream. At least a portion of the carbon dioxide stream and hydrocarbon stream are li... | 06/24/2008 |
| 7351312 | Apparatus for obtaining sample and process therefor A vessel is provided for collecting a process stream and fractionating the process stream into a liquid and gas phase in the vessel. Cooling may be provided by an internal bath and/or an external bath. The liquid phase retained in the vessel and the gas phase collec... | 04/01/2008 |
| 7290396 | Cryogenic biological preservation unit A cryogenic biological preservation unit having a removable lid and an integrated cryocooler positioned apart from, or within a fixed portion of, the lid and which provides refrigeration to the upper portion of the interior of the unit which also contains a pool of ... | 11/06/2007 |
| 7278280 | Helium process cycle A unique process cycle and apparatus design separates the consumer (cryogenic) load return flow from most of the recycle return flow of a refrigerator and/or liquefier process cycle. The refrigerator and/or liquefier process recycle return flow is recompressed by a ... | 10/09/2007 |
| 7272932 | System and method of use of expansion engine to increase overall fuel efficiency A system of increasing overall fuel efficiency of a facility including a gas expansion engine for receiving a supply of pressurized gas of a first pressure and first temperature and outputting a tail gas of a second lower temperature and lower pressure. The expansio... | 09/25/2007 |
| 7264654 | Process and system for the condensation of multi-component working fluids A process and system for condensing a multi-component fluid is disclosed, where the process and system are designed to provide a substantial increase in a heat transfer coefficient during condensation of multi-component fluids resulting in a drastic reduction in siz... | 09/04/2007 |
| 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 |
| 7231784 | Method for producing liquefied natural gas A method for producing liquefied natural gas employing two separate adsorption steps for removing water and carbon dioxide from natural gas and employing a subambient expansion to produce regeneration gas for the regeneration of the dehydration adsorption step in ad... | 06/19/2007 |
| 7228715 | Cryogenic air separation process and apparatus A low temperature air separation process and apparatus for producing pressurized gaseous product in an air separation unit using a system of distillation columns which include cooling a compressed air stream in a heat exchange line to form a compressed cooled air st... | 06/12/2007 |
| 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 |
| 7217398 | Deposition reactor with precursor recycle A reactor vessel is provided with a solvent in a supercritical PVT state for use in depositing films on a deposition substrate. A metal organic precursor is dissolved in the supercritical solvent, as is a reaction agent. A chemical reaction deposits a film, such as ... | 05/15/2007 |
| 7213400 | Liquefying and storing a gas Apparatus and methods for improving the safety and efficiency and decreasing the cost of producing liquid gas, such as liquid oxygen, with a small-scale use liquefaction device, according to various embodiments of the present invention. In one embodiment, liquid oxy... | 05/08/2007 |
| 7143606 | Combined air separation natural gas liquefaction plant In an integrated process and apparatus for the separation of air by cryogenic distillation and liquefaction of natural gas in which at least part of the refrigeration required to liquefy the natural gas is derived from at least one cryogenic air distillation plant c... | 12/05/2006 |
| 7137274 | System for liquefying or freezing xenon Apparatus for producing liquid or solid xenon comprises a duct 12 having an inlet 14 for receiving gaseous xenon and an outlet 16 for outputting gaseous xenon at a reduced temperature to a nozzle located in a vacuum chamber 60. A housing ... | 11/21/2006 |
| 7134296 | Method for providing cooling for gas liquefaction A method for generating refrigeration for cooling a product gas wherein a first or working gas undergoes a staged expansion to a first temperature and a subsequent turboexpansion to a second higher temperature and both the expanded gas and the turboexpanded gas prov... | 11/14/2006 |
| 7090816 | Low-delta P purifier for nitrogen, methane, and argon removal from syngas A process for manufacturing ammonia from syngas with excess air for reforming and nitrogen removal with low pressure losses is disclosed. Auto-refrigeration for cooling the syngas for cryogenic hydrogen enrichment is provided by expansion of a hydrogen-lean waste fl... | 08/15/2006 |
| 7076960 | Preserving system To provide a preserving system capable of re-using vaporized nitrogen, and moreover, capable of always cooling the specimens at a predetermined temperature or lower. The preserving system comprising a cylinder and the preserving vessel which is supplied with liquid ... | 07/18/2006 |
| 7078574 | Method for the intrinsically safe handling of 3-chloropropyne A method is provided for the intrinsically safe handling of 3-chloropropyne in the presence of a diluent with a boiling point ranging from −50° C. (223 K) to 200° C. (473 K) under atmospheric pressure, wherein the concentration of 3-chloropropyne in the liquid p... | 07/18/2006 |
| 7059138 | Biological refrigeration system A refrigeration system especially useful for refrigerating biological samples wherein a cryocooler, such as one employing a pressure wave from a pressure wave generator, is used to generate refrigeration for cooling liquid coolant or purging fluid, which is employed... | 06/13/2006 |
| 7024885 | System and method for storing gases at low temperature using a cold recovery system A system and process for liquefying or storing gases at low temperatures using a cold recovery system. The system and process includes a cold recovery system having at least one cold recovery vessel configured to receive a gas stream and cool the gas stream by passi... | 04/11/2006 |
| 7019412 | Power generation methods and systems A closed loop system for generating mechanical energy at high efficiencies. The system can have a heating source, a superheater, an expander, a receiver, an absorber, a desorber, and regenerator with pumps and controls. The superheater heats a working fluid (a refri... | 03/28/2006 |
| 7009076 | Process for recovering betaine The invention relates to a separation process of fractionating a solution comprising betaine and sucrose by subjecting said solution to chromatographic fractionation and nanofiltration and recovering a fraction enriched in betaine and optionally a fraction enriched ... | 03/07/2006 |
| 6997012 | Method of Liquifying a gas A method of liquefying a gas is disclosed and which includes the steps of pressurizing a liquid; mixing a reactant composition with the pressurized liquid to generate a high pressure gas; supplying the high pressure gas to an expansion engine which produces a gas ha... | 02/14/2006 |
| 6966934 | Gas reclaiming equipment A gas reclaiming equipment capable of separating SF6 gas from a mixed gas efficiently and shortening reclaiming work under reduced pressure. A gas separation equipment is provided between a gas insulated equipment and a gas liquefaction system. The gas se... | 11/22/2005 |
| 6960242 | CO2 recovery process for supercritical extraction A carbon dioxide recovery apparatus and process for supercritical extraction includes providing a process stream from a supercritical extraction procedure in which the process stream includes pressurized carbon dioxide, extraction process waste and optionally at lea... | 11/01/2005 |
| 6938439 | System for use of land fills and recyclable materials Gases are vented from a waste site such as a landfill, and the gases are separated into at least three streams comprising a hydrocarbon stream, a carbon dioxide stream, and residue stream. At least a portion of the carbon dioxide stream and hydrocarbon stream are li... | 09/06/2005 |
| 6923009 | Pre-cooler for reducing cryogen consumption MRI system 10 is provided. The MRI system 10 includes a magnet assembly 12. A first cryogen cooling fluid 20 is utilized to cool the magnet assembly 12. A first supply line 16 communicates the first cryogen cooling fluid ... | 08/02/2005 |
| 6915660 | Method and system for liquefaction monitoring A method and system for liquefaction monitoring of a gas in a gas piping system in which pressure and temperature information about the gas is gathered and the liquefaction status of the gas is determined and reported. ... | 07/12/2005 |
| 6912858 | Method and system for pumping a cryogenic liquid from a storage tank A cryogenic liquid stream from a storage tank to be pumped is passed through the heat exchanger located within a phase separator vented to atmosphere and a subsidiary cryogenic stream is divided out of the cryogenic liquid stream and is diverted to the phase separat... | 07/05/2005 |
| 6881354 | Multicomponent refrigerant fluids for low and cryogenic temperatures Multicomponent refrigerant fluids for generating refrigeration, especially over a wide temperature range including cryogenic temperatures, which are advantageous over conventional refrigerant fluids especially for certain applications, and which are non-toxic, non-f... | 04/19/2005 |
| 6792774 | Method of treating gaseous waste from an optical fiber preform fabrication unit A method of treating gaseous waste from an optical fiber preform fabrication unit containing halogenated compounds includes a step of forming a liquid effluent from the gaseous waste by condensing the gaseous waste. The gaseous waste is preferably condensed by cooli... | 09/21/2004 |
| 6735978 | Treatment of supercritical fluid utilized in semiconductor manufacturing applications A system and process for utilization and disposition of a supercritical fluid composition, in which a supercritical fluid (SCF) composition is used in an SCF-using process facility such as a semiconductor manufacturing plant. The supercritical fluid composition is w... | 05/18/2004 |
| 6729145 | Process plant A process plant (1) for handling combustibles fluids, for example an oil production plant in which gaseous hydrocarbons are separated from oil and in which surplus gases or residual gases from uncontrolled build-ups of gas pressure in the process escape throu... | 05/04/2004 |
| 6426019 | Variable load refrigeration system particularly for cryogenic temperatures A method for generating refrigeration, especially over a wide temperature range including cryogenic temperatures, wherein a non-toxic, non-flammable and low or non-ozone-depleting mixture is formed from defined components and maintained in variable load f... | 07/30/2002 |
| 6196021 | Industrial gas pipeline letdown liquefaction system A high pressure nitrogen pipeline, oxygen or plant air is diverted around a pressure letdown station to liquefy the gas or a portion of the gas for storage or air separation assist, with the remaining unused gaseous portion being returned to the pipeline ... | 03/06/2001 |
