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CRYOGENIC TREATMENT OF GAS OR GAS MIXTURE

Subclass of:

062 - Refrigeration

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
062617000 Separation of gas mixture 401
062606000 Liquefaction 214
062601000 Solidification 21
062657000 Automatic control 3
20110056240FREEZE PLUG SYSTEM AND METHOD OF OPERATION - A freeze and thaw system using knowledge-based hardware and methodology is provided for repair of oil-filled pipes. Liquid nitrogen is boiled off inside freeze jackets installed over the pipe, exiting in a superheated vapor state. Liquid nitrogen flow rates, controlled by the temperature controllers, are based on the requirements of the freeze process to maintain a desired level of superheat. The freeze operation is divided into distinct phases each with a different nitrogen superheated exhaust temperature. At the end of the repair, electric heaters wrapped over the pipe proceed to thaw the frozen oil. The heater controller thaws the frozen plugs based on an embedded time versus temperature protocol. The freeze prevention heaters are wrapped over the freeze jackets to prevent ice formation over the cold freeze jackets while the freeze plug is formed and maintained. This technology results in less thaw and freeze time at reduced liquid nitrogen usage.03-10-2011
20100058806BACKUP POWER SYSTEM FOR CRYO-COOLED ELEMENTS IN WIND TURBINES - A cooling system is provided for supplying cryogenic cooling fluid to a thermal load. The system includes a cryogenic refrigeration system, a cryogenic cooling fluid coupled to the thermal load, and a primary power supply for providing power to the cryogenic refrigeration system. A backup power supply provides power to the cryogenic refrigeration system in the event that the primary power supply is unable to provide sufficient power to the cryogenic refrigeration system.03-11-2010
20100018249SIMULTANEOUS GAS SUPPLY FROM MULTIPLE BSGS - Methods, apparatuses and systems are disclosed for supplying gas from a multi-container BSGS system wherein at least one process parameter is automatically monitored to prevent over-filling of at least a first and second container without operator intervention.01-28-2010
Entries
DocumentTitleDate
20120240615METHANOL TO OLEFINS PROCESS - A process for chilling ethylene to required storage temperatures is disclosed, the process including: cooling an ethylene product from at least one of an ethylene production process and an ethylene recovery process via indirect heat exchange with a coolant at a temperature less than about −100° C. to decrease the temperature of the ethylene product; mixing a portion of the cooled ethylene product with methane to form the coolant; expanding at least one of the coolant, the methane, and the portion of the cooled ethylene to reduce a temperature of the coolant to less than −100° C. prior to the cooling; and feeding the heat exchanged coolant to at least one of the ethylene production process, the ethylene recovery process, and an open-loop refrigeration system.09-27-2012
20120006051FAST COOLING EQUIPMENT FOR ORGANIC OR INORGANIC VAPORS - A fast cooling equipment for organic or inorganic vapors that comprises a vertical double-truncated-cone body joined by the apex of both cones, provided with an external refrigeration jacket along its entire length; an upper coverlid placed at the base of the upper inverted truncated cone, provided with a central entrance for the vapors to be condensed with a thermal insulating layer; an annular chamber provided with two or more openings or nozzles from which a cold gas is blown; an annular chamber located below the cold gas chamber; an inner central cone located inside the lower section of the condenser body, provided in turn with an internal cooling system and deflecting baffles located at one or more cone levels and in mutually opposing directions between each successive level; and a lower accumulation section for liquids or other condensable materials, provided with a conventional drain system and a lateral exit for gases and liquids that are separated in a conventional cyclone system.01-12-2012
20130008204REFRIGERATION PROCESS - The present invention relates to a single cycle mixed refrigerant process for industrial cooling applications, for example, the liquefaction of natural gas. The present invention also relates to a refrigeration assembly configured to implement the processes defined herein and a mixed refrigerant composition usable in such processes.01-10-2013
20080216510Combined Cycle System For Gas Turbines and Reciprocating Engines and a Method for the Use of Air as Working Fluid in Combined Cycle Power Plants - A combined cycle power plant comprising: a first cycle comprising: a prime mover; a prime mover exhaust in fluid communication with the prime mover; a second cycle comprising: a liquid air supply; a heat exchanger in fluid communication with the liquid air supply and the prime over exhaust; a turbo expander in fluid communication with the heat exchanger; wherein liquid air is heated to gaseous air by the heat exchanger, and the gaseous air is expanded in the turbo expander thereby producing work. A liquid air combined cycle method comprising: providing pressurized liquid air; heating the pressurized liquid air to pressurized gaseous air; expanding the pressurized gaseous air with a turbo expander; using work from the expansion of the pressurized gaseous air to compress ambient air; heating the expanded pressurized gaseous air; sending the heated expanded air to a turbine combustion chamber; and using waste heat from a turbine to heat pressurized liquid air. A liquid air combined cycle method comprising: providing pressurized liquid air; heating the pressurized liquid air to pressurized gaseous air; expanding the pressurized gaseous air with a turbo expander; using work from the expansion of the pressurized gaseous air to drive a generator; and using waste heat from a prime mover to heat pressurized liquid air.09-11-2008

Patent applications in all subclasses CRYOGENIC TREATMENT OF GAS OR GAS MIXTURE