Abstract: A microcooler includes a substrate with a first and second microchannel and an orifice disposed between, in fluid communication with both. A pair of electrodes is in a vicinity of the orifice. An electrical resistive heating material is in electrical communication with the electrodes and is in thermal contact with a fluid in the vicinity of the orifice. A system includes the microcooler and a voltage source to apply a voltage across the electrodes, which induces sufficient heating in the heating material to disassociate something clogging the orifice, without significant damage to the heating material. Some systems include a sensor configured to detect an effect of clogging at the orifice. A processor is configured to receive sensor output from the sensor, and if there is an effect of clogging, then cause the voltage to be applied across the electrodes.

Abstract: Methods and systems for separating hydrocarbons using one or more dividing wall columns are provided. The method can include introducing a hydrocarbon fluid to a first dividing wall column. A first overhead comprising methane, ethane, or a combination thereof, a first intermediate comprising ethane, a second intermediate comprising ethane, and a first bottoms comprising one or more hydrocarbons having three or more carbon atoms per molecule can be recovered from the first dividing wall column. The first overhead can be introduced to a process for producing a liquefied natural gas. The first bottoms can be introduced to a second dividing wall column. A second overhead comprising propane, a third intermediate comprising butane, and a second bottoms comprising one or more hydrocarbons having five or more carbon atoms per molecule can be recovered from the second dividing wall column. The second overhead can be introduced to the process for producing a liquefied natural gas.

Abstract: A heat exchanger (5) includes a thermally conductive cylindrical container (40), at least one thermally conductive tube (30), a cooling column (90), and a cryogen coldhead (100). The cooling column and coldhead condense gaseous helium to liquid helium to maintain a reservoir of liquid helium in the thermally conductive cylindrical container (40). The at least one thermally conductive tube (30) coils circumferentially around the container (40), and extends to at least one superconducting magnet coil heat exchanger (20), and back. The tube forms a selected loop which holds gaseous helium at pressure up about 104 bar (1500 PSI) or room temperature to about 0.75 bar at cryogenic temperatures.

Abstract: A method and system of storing and transporting gases comprising mixing the gases with liquid natural gas to form a mixture. The mixture is a liquid-liquid mixture or slurry, and is stored in vessel configured for maintaining the mixture at a first location. The mixture is transported to a second location for storage in vessel for maintaining the mixture. The mixture is removed from the second location storage vessel for separation and use in additional processes.

Abstract: Embodiments described herein provide a method and systems for separating carbon dioxide from heavy hydrocarbons. The method includes cooling a first liquid stream including carbon dioxide and heavy hydrocarbons within an oscillatory crystallization unit to generate carbon dioxide solids and a second liquid stream including the heavy hydrocarbons. The method also includes separating the carbon dioxide solids from the second liquid stream via a solid-liquid separation system.

Abstract: A gas liquefaction process, especially for producing LNG, maintains product flow rate and temperature by controlling the refrigeration so that variation to reduce any difference between actual and required product temperatures is initiated before variation of the product flow rate to reduce any difference between actual and required flow rates.

Abstract: The invention relates to a method and an installation for producing liquid helium, said installation comprising a cooling/liquefaction device comprising a working circuit that subjects a helium-enriched working fluid to a thermodynamic cycle in order to produce liquid helium, said circuit comprising at least one working fluid compression body and a plurality of heat exchangers. The installation also comprises a plurality of fluid recovery lines having respective upstream ends to be selectively connected to respective reservoirs, and a first collection line having an upstream end connected to the recovery lines and a downstream end connected to a receiving body that can supply the working circuit with a working fluid.

Abstract: A natural gas liquefaction process suited for offshore liquefaction of natural gas produced in association with oil production is described.

Abstract: An apparatus for compressing air and producing a carbon dioxide-rich fluid includes an air compressor, an element for bringing the air bound for the air compressor into contact with water to produce humidified air and cooled water, a pipe for sending the humidified compressed air from the air compressor to an installation producing a carbon dioxide-rich gas, a carbon dioxide-rich gas compressor for compressing the carbon dioxide-rich gas, at least one heat exchanger upstream and/or downstream the carbon dioxide-rich gas compressor and pipes for conveying into the heat exchanger water cooled in the contact element and the carbon dioxide-rich gas.

Abstract: A fluid is liquefied from a gaseous state to a liquid state, and the liquefied fluid is stored. In one embodiment, the fluid is oxygen. Mechanisms are employed that enhance the durability, longevity, reliability, efficiency, of a system used to liquefy the fluid.

Abstract: A liquefier system includes: a feed line configured to feed a raw material gas from a raw material supply source such that a pressure of the raw material gas in a predetermined portion of the feed line is kept higher than or equal to a predetermined pressure; a cooling medium circulation line configured to cause a cooling medium to circulate; a static pressure gas bearing configured to be supplied with the gas that has a pressure higher than or equal to the predetermined pressure and to rotatably support a rotating shaft of an expansion turbine; and a bearing supply line configured to connect the predetermined portion of the feed line and a gas inlet of the static pressure gas bearing, such that the gas is supplied to the static pressure gas bearing.

Abstract: The method according to the invention comprises the separation of a feed stream (16) into a first fraction (60) and a second fraction (62) and the injection of at least part of the second fraction (62) into a second dynamic expansion turbine (46) to form a second expanded fraction (80). It comprises the cooling of the second expanded fraction (80) through heat exchange with at least part of the first headstream (84) coming from a first column (28) and the formation of a second feed stream (82) of the first column (28) from the second cooled expanded fraction.

Abstract: A method for freezing a plurality of conditioning tubes is provided, each tube filled with a predetermined volume of biological substance, including arranging each conditioning tube directly into a conditioning unit placed in a cooling enclosure then causing the enclosure to be passed through by a flow of cooling agent and simultaneously driving the conditioning unit (6) in rotation, and providing the unit (6) with a greater capacity than the plurality of tubes; wherein the step of arranging each tube directly in a unit is carried out by placing the plurality of tubes into the unit, and the step of driving the unit in rotation is implemented by setting each tube in motion with respect to the unit and with respect to the other tubes.

Abstract: A cryogenic refrigerator includes a Scotch yoke mechanism including a Scotch yoke and a bearing movably engaged with the Scotch yoke, and a displacer caused to reciprocate in a cylinder by the Scotch yoke mechanism, so that a refrigerant gas inside an expansion space formed in the cylinder is expanded by the reciprocation of the displacer to generate cold temperatures. The Scotch yoke includes a concave part at a position corresponding to a top dead center of the displacer.

Abstract: A method and apparatus of removing heavy hydrocarbons from a natural gas feed stream, the method comprising using first and second hydrocarbon removal systems in series such that the first system processes the natural gas feed stream to produce a heavy hydrocarbon depleted natural gas stream and the second system processes at least a portion of the heavy hydrocarbon depleted natural gas stream from the first system to produce a natural gas stream lean in heavy hydrocarbons, wherein one of said systems is a adsorption system that comprises one or more beds of adsorbent for adsorbing and thereby removing heavy hydrocarbons from a heavy hydrocarbon containing natural gas, and the other of said systems is a gas-liquid separation system for separating a heavy hydrocarbon containing natural gas into a heavy hydrocarbon depleted natural gas vapor and a heavy hydrocarbon enriched liquid.

Abstract: Liquefaction systems and associated processes and methods are disclosed herein. Liquefaction systems in accordance with the present technology can include a liquefier positioned to liquefy gases from an emission stream. The liquefier can include a compressor configured to compress a first gas to produce a first liquid, and to compress a second gas to produce a second liquid. The first liquid can be directed to a first collection tank and the second liquid can be directed to a second collection tank. In some embodiments, a liquefaction system can direct a portion of a compressed liquid to a liquefier to pre-cool gases in the emission stream and/or to cool gases at various stages of compression.

Abstract: An apparatus for distributing a flow of a liquid descending in an inner space of a packed column includes: a collector to collect the flow of the liquid; a mixer below and vertically spaced apart from the collector to receive and mix the liquid collected; a first conduit to receive and transmit at least part of the liquid from a first sector of the collector to a first zone of the mixer; and a second conduit to receive and transmit at least part of the liquid from a second sector of the collector to a second zone of the mixer. A geometric center of the first sector of the collector is positioned circumferentially away from a geometric center of the first zone of the mixer and/or a geometric center of the collector's second sector is positioned circumferentially away from a geometric center of the mixer's second zone.

Abstract: A simplified method for production of a commercial supply liquefied natural gas (LNG) supplied in a pressurized vessel includes taking a supply of natural gas including contaminants from a stranded well or from a pipe line and extracting from the supply gas water vapor and CO2 in a fixed bed absorption system. In a first stage the supply gas is separated into first and second streams where the first stream contains all the cold energy available from the feed stream and sufficient of the contaminants are removed to meet a product specification for the composition of the LNG supply. In a second stage the first stream is liquefied by the available cool energy for commercial pressurized supply container The second stream contains natural gas which is as much as 75% of the feed stream together with substantially all the contaminants and is used as a natural gas supply.

Abstract: A system includes a pulse tube, a compressor configured to create pulses of fluid in the pulse tube, and a surge tank. The surge tank includes a housing that defines a surge volume configured to receive the fluid from the pulse tube. An inertance channel defines a passageway through which the fluid flows to and from the surge volume. At least part of the inertance channel has an open side to the surge volume. The surge tank also includes an adjustable seal configured to block at least part of the open side of the inertance channel and to move in order to change a functional length of the inertance channel. The housing may include a material having a high coefficient of thermal expansion, and the adjustable seal may include a material having a low coefficient of thermal expansion.

Abstract: A ship for bunkering liquefied fuel gas to a liquefied-fuel-gas propulsion ship includes: a liquefied-fuel-gas storage tank installed in the ship; a fuel supply pipe connected to the liquefied-fuel-gas storage tank and supplying fuel to the liquefied-fuel-gas propulsion ship; and a BOG collection pipe collecting BOG produced in a liquefied fuel gas tank of the liquefied-fuel-gas propulsion ship.