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| Number | Title | Issue Date |
| 6513345 | Nozzle for supersonic gas flow and an inertia separator A nozzle of converging-diverging shape for creating mist flow at supersonic velocity comprising: a throat having a characteristic diameter D*; an inlet having a characteristic diameter D1, positioned a distance L1 upstream of the nozzle throat; and an out... | 02/04/2003 |
| 6382910 | Turbine expansion machine with variable nozzle mechanism An adiabatic expansion apparatus 22 with a built-in turbine impeller 12 adiabatically expands gas at a cryogenic temperature when the impeller rotates. A control device 24 is connected coaxially with the turbine impeller to control the impeller. A variabl... | 05/07/2002 |
| 6192692 | Liquid powered ejector Continuous cooperative isobaric ejector method, process and apparatus are disclosed. The ejector compressor 10a is used as a primary compression source in a refrigeration system. The isobaric expansion is accomplished by centrifuging the liquid during the... | 02/27/2001 |
| 6164078 | Cryogenic liquid heat exchanger system with fluid ejector A cryogenic liquid heat exchanger system has a subatmospheric pressure reservoir, a tube, and an initial fluid ejector. The sub-atmospheric pressure reservoir has a vacuum exhaust. The tube extends through the reservoir. The initial fluid ejector has a su... | 12/26/2000 |
| 6155076 | Method to optimize thermodynamic expansion in gas liquefaction processes For gas liquefaction processes, thermodynamic expansion is optimized by use of a hydraulic turbine expander for liquefied gases which can be adjusted to different flow rates and differential pressures by varying the rotational speed and/or guide vane posi... | 12/05/2000 |
| 6128907 | Cooling and heating device by using gas and heat pipe In this cooling and heating device by using gas and heat pipe of this invention, which is different from the conventional method, perfectly non-polluting gas, including air, is used as a refrigerant material, without changing of state, in the open loop ci... | 10/10/2000 |
| 6116049 | Adiabatic expansion nozzle A nozzle for producing a continuous gas/solid or gas/aerosol stream from a liquid having a high room temperature vapor pressure. The nozzle comprises a series of expansion stages, with the flow reversing direction after each expansion except the first and... | 09/12/2000 |
| 6105390 | Apparatus and process for the refrigeration, liquefaction and separation of gases with varying levels of purity A process for the separation and liquefaction of component gasses from a pressurized mix gas stream is disclosed. The process involves cooling the pressurized mixed gas stream in a heat exchanger so as to condense one or more of the gas components having ... | 08/22/2000 |
| 6105391 | Process for liquefying a gas, notably a natural gas or air, comprising a medium pressure drain and application The invention is a process for liquefying a compound A from a mixture comprising at least compound A and at least one compound B. The mixture is available at a pressure P1 with separation of the at least one compounds B and/or of compound A being performe... | 08/22/2000 |
| 6006545 | Liquefier process A process for liquefying a gas, wherein the gas is compressed, cooled, then expanded in a first turbine and at least partially liquefied, wherein a portion of the liquid produced is also cooled, and then expanded in a second turbine, wherein the second tu... | 12/28/1999 |
| 6001368 | Method for inhibiting or reducing the risk of macular degeneration A method is provided for inhibiting or reducing the risk of macular degeneration with phytoestrogenic isoflavones. A further method is provided for inhibiting or reducing the risk of macular degeneration with a soy protein material containing phytoestroge... | 12/14/1999 |
| 5901577 | Process and plant for air separation by cryogenic distillation A process and plant for air separation by cryogenic distillation. Air is cooled in a main exchanger and is sent to a distillation column in which it separates into an oxygen-enriched liquid and a nitrogen-enriched vapor. A stream of pressurized liquid com... | 05/11/1999 |
| 5901579 | Cryogenic air separation system with integrated machine compression A cryogenic air separation system wherein base load pressure energy is supplied to the feed air by a base load compressor and custom load pressure energy is supplied to the feed air by a bridge machine having one or more turbine booster compressors and on... | 05/11/1999 |
| 5860296 | Method and apparatus for separating air A method and apparatus for separating air in which a compressed and purified air stream is cooled in a main heat exchanger. Thereafter, the compressed and purified air is separated in a distillation column system to produce product streams. The product st... | 01/19/1999 |
| 5799510 | Multi-column system and method for producing pressurized liquid product An apparatus and method involving the use of a multi-column system in which higher and lower pressure columns are operatively associated with one another by a condenser-reboiler. A pump is provided for pumping a stream of sump liquid of the lower pressure... | 09/01/1998 |
| 5682759 | Two phase nozzle equipped with flow divider A two-phase nozzle having a converging diverging configurations is equipped with a flow divider at its inlet. The flow divider is arranged to act upon an incoming flow of two-phase liquid to break the liquid phase into finely divided droplets which are di... | 11/04/1997 |
| 5560223 | Process and installation for the expansion and compression of at least one gaseous stream Process and installation for the compression and expansion of at least one gaseous stream, in which a first stream of a gaseous mixture is compressed in a compressor (5) having at least one compression stage (5A, 5B, 5C); a second stream of a gaseous mixt... | 10/01/1996 |
| 5511382 | Process and installation for the cryogenic purification of hydrogen A process and installation for the cryogenic purification of impure hydrogen, of the type in which impure hydrogen is cooled under a low pressure PO to a temperature sufficiently low to condense a predetermined proportion of the impurities, by heat exchan... | 04/30/1996 |
| 5483801 | Process for extracting vapor from a gas stream A high efficiency process and apparatus for extracting condensable vapors from a gas stream using a vortex tube expansion. The process comprises partially condensing a raw feed high pressure gas stream rich in condensable vapor in a high pressure condense... | 01/16/1996 |
| 5460003 | Expansion turbine for cryogenic rectification system A turboexpander, particularly suited for use in a cryogenic rectification system, comprises a center housing rotatably supporting an elongated shaft to opposite ends of which are mounted a turbine wheel within a turbine housing and a compressor wheel with... | 10/24/1995 |
| 5428963 | Compressed air system to deliver dry and clean air A compressed air system to deliver dry and clean air whereby the compressed air supplied by the air compressor is passed through a primary circuit of a heat exchanger and a liquid separator where it is cooled down close to the freezing point of the water ... | 07/04/1995 |
| 5426944 | Chemical purification for semiconductor processing by partial condensation A purification method and apparatus for creating ultra-purity chemicals for semiconductor processing. The purification method includes a step of expanding an ESG chemical through an orifice (17) inside a condenser (21) to a partial condensed state for rem... | 06/27/1995 |
| 5412950 | Energy recovery system This invention is a gas wave refrigeration method and a corresponding device used in an energy recovery system, which employs a mechanism creating a pulsating flow wave resonant interactions to generate cooling and heating effects without any mobile parts... | 05/09/1995 |
| 5305610 | Process and apparatus for producing nitrogen and oxygen The present invention is a separation process for atmospheric gases. In the process, an atmospheric gas stream, for example air, is compressed and may be partly condensed prior to introduction into a vortex tube air separator. The performance of the tube ... | 04/26/1994 |
| 5261242 | Process for extraction of a substance from a gaseous carrier gas, as solid or liquid particles and system to operate the process The invention concerns a process for extraction of a liquefiable substance from a gaseous carrier fluid. According to that process on one hand, we force the fluid to flow across a convergent-divergent nozzle such as that in that nozzle, the fluid is submi... | 11/16/1993 |
| 5246575 | Material extraction nozzle coupled with distillation tower and vapors separator A material extraction nozzle for separating a mixture of materials having different densities, comprising: a nozzle body shell having an outer surface with a tangentially located material inlet at an upper portion thereof and an inner surface defining in ... | 09/21/1993 |
| 5228298 | Cryogenic rectification system with helical dry screw expander An improved helical dry screw expander particularly suited for cryogenic service and its use in a cryogenic rectification system. The improved helical dry screw expander is particularly advantageous in a cryogenic waste expansion cycle particularly for ni... | 07/20/1993 |
| 5154061 | Liquefaction apparatus and method Liquefaction apparatus and method for removing liquid molecules from a vaporous or gaseous medium, use being made of an annular porous layer (5) of van der Waals-type material through which the medium is radially outwardly directed, the layer being rotata... | 10/13/1992 |
| 4773923 | Process and apparatus for fractional desublimation of vapor-phase solids from gas-vapor mixtures For the non-clogging, fractional desublimation of vapor-phase solids contained in a gas-vapor mixture, the gas-vapor mixture, exiting at high velocity from a nozzle, is mixed with a cooling gas, likewise exiting at high velocity from another nozzle. The g... | 09/27/1988 |
| 4563201 | Method and apparatus for the production of liquid gas products A method and apparatus are disclosed for increasing the production of liquid natural gas and conserving energy and reducing vapor production, while reducing equipment cost, in a liquid natural gas manufacturing installation. A liquid gas stream from a mai... | 01/07/1986 |
| 4531371 | Process and apparatus for producing nitrogen and oxygen A process for producing nitrogen and oxygen from a precompressed and cooled air, comprising compression of air to a pressure of from 0.3 to 0.6 MPa, cooling the compressed air to a saturated state with a partial liquefaction at a temperature of from 90° ... | 07/30/1985 |
| 4530233 | Method and apparatus for distinguishing between different gas or gas mixtures using a flow tube A flow tube to distinguish between different gases or gas mixtures flowing through the tube, the tube being sized so that a first or control gas or gas mixture is selected and the properties of the control gas or gas mixture are such that when the control... | 07/23/1985 |
| 4359871 | Method of and apparatus for the cooling of natural gas A method of cooling natural gas in a system in which the natural gas contains components other than methane which are separable by dewpoint condensation and the natural gas is available from a source, e.g. a well, at an elevated pressure. In accordance wi... | 11/23/1982 |
| 4345926 | Expansion engine An expansion engine fixed to a flange so as to extend into a vacuum tank comprises an outer cylinder inserted in said vacuum tank and having its proximal end opening into the atmosphere, an inner cylinder removably inserted from its distal side into said ... | 08/24/1982 |
| 4325719 | Process for recovering nitrogen under pressure in air separation apparatus In an air separation apparatus for separating air by cryogenic process, thereby recovering oxygen and nitrogen, pressure of nitrogen gas withdrawn from an upper column of duplex type rectification tower is increased through an ejector utilizing liquid nit... | 04/20/1982 |
| 4257794 | Method of and apparatus for separating a gaseous hydrocarbon mixture A method of separating a gaseous hydrocarbon mixture residing in cooling same by stages, with the resulting liquid condensate composed of the olefins and methane with an admixture of hydrogen being withdrawn at each cooling stage, recovering a gaseous met... | 03/24/1981 |
| 4202678 | Air separation liquefaction process This invention relates to a process for at least partially liquefying an air feedstream for subsequent separation into its components. The process comprises compressing an air feedstream, splitting the feedstream into at least a major portion, and a minor... | 05/13/1980 |
| 4179897 | Isentropic expansion of gases via a pelton wheel This invention relates to an improved isentropic process for liquefying a gas, preferably a cryogenic fluid, which comprises forming a critical fluid, expanding the critical fluid through a Pelton Wheel to a pressure below the critical pressure forming a ... | 12/25/1979 |
| 4091633 | Process and apparatus for the separation of a low-boiling gaseous mixture A process for the separation of a low-boiling gaseous mixture by low-temperature rectification, comprising the steps of: (a) subjecting said gaseous mixture to rectification in a high pressure zone to obtain a crude light fraction and a crude heavy fraction; (... | 05/30/1978 |
| 4049409 | Method for transferring a highly compressed gas from a reactor to a storage tank with condensation of the gas A method for transferring a highly compressed gas from a reactor into a storage tank with condensation of the gas is disclosed in which the gas is at first liquefied and cooled to a temperature below the storage temperature, then the liquefied gas is expa... | 09/20/1977 |
