Abstract: A method of improving the efficiency in delivery of a cryogenic liquid (160) to the surface of a metal body in a furnace, the method comprising the steps of delivering a first liquid cryogen and a vaporized cryogen gas to a cooling coil (180) which is in heat transfer contact with a second liquid cryogen (140) at a lower temperature than the first liquid cryogen and a vaporized cryogen (160, 170), maintaining the first liquid cryogen and the vaporized cryogen gas in the cooling coil (180) for an amount of time sufficient to condense part of the vaporized cryogen gas to an additional amount of the first liquid cryogen, delivering the first liquid cryogen and the additional amount of first liquid cryogen to the surface of a metal body in a furnace (190, 150).

Abstract: In an apparatus and method for chilling or freezing objects, an interior surface of a rotating drum includes recesses formed between prominences extending inwardly from the interior surface. One or more liquid CO2 nozzles inject solid CO2 towards the interior surface. The injected snow replenishes a depth of solid CO2 in empty or partially empty recesses and/or provides a fresh layer of solid CO2 on top of the objects. Because the interior surface is made of polyethylene and the depth of solid CO2 is replenished in empty or partially empty recesses, the product/drum sticking problem experienced by conventional apparatuses and methods is reduced or avoided. Optionally, the CO2 snow is injected into empty or partially empty recesses by at least one first liquid CO2 nozzle and is deposited on top of the objects by at least one second liquid CO2 nozzle so that each opposing surface of the object is in direct contact with solid CO2.

Abstract: An upwardly helical flow path of cryogen-rich air inside a cryogenic spiral freezer may be used to chill or freeze products.

Abstract: An upwardly helical flow path of cryogen-rich air inside a cryogenic spiral freezer may be used to chill or freeze products.

Abstract: A liquid additive is sprayed over liquid nitrogen to form discrete solid particles of the additive in liquid nitrogen. The mixture of additive particles and liquid nitrogen is mixed with a flow of liquid nitrogen at an eductor pump to provide a food treatment composition comprising additive particles. The food treatment composition flows into an interior of food processing equipment to come into contact with food items contained therein.

Abstract: An apparatus for the removal of hydrocarbons from a body of water comprising a temperature reduction device comprising a heat exchange in thermal communication with a flow of a liquefied cryogen, the temperature reduction device being adapted to receive a hydrocarbon/water mixture, position a first surface of the at least partially phase separated mixture in thermal communication with the heat exchanger, and reduce the temperature of the at least partially phase separated mixture to a temperature sufficient to cause the hydrocarbon phase to at least partially congeal or at least partially solidify.

Abstract: A liquid additive is sprayed over liquid nitrogen to form discrete solid particles of the additive in liquid nitrogen. The mixture of additive particles and liquid nitrogen is mixed with a flow of liquid nitrogen at an eductor pump to provide a food treatment composition comprising additive particles. The food treatment composition flows into an interior of food processing equipment to come into contact with food items contained therein.

Abstract: A cryogenic freezer includes a plurality of conveyor rail supports that rest upon side walls of a lower housing of the freezer. The conveyor rail supports include upper and lower bars that support upper and lower conveyor support rails extending perpendicular to the bars.

Abstract: A material to be frozen is fed to an immersion bath having a recirculating flow of liquid nitrogen thereinside and at least partially frozen material is withdrawn from the bath downstream of where it is fed.

Abstract: Embodiments of the invention generally provide methods and systems that distribute an additive in solid carbon dioxide in an interior of food processing equipment. The additive may be injected into a flow of liquid carbon dioxide upstream of an expander at or adjacent to the interior. Injection of the additive into the interior may be alternated with directing a flow of expanded carbon dioxide into the interior. In some embodiments, the freezing point of the additive with or without a diluent composition and/or additive(s) is lower than a temperature of the liquid carbon dioxide.

Abstract: Systems and methods freeze food products. A system provides a storage tank of liquefied gas, a gas-liquid separation tank, and a crust freezer. The crust freezer provides plates chilled by flow of liquefied gas through conduits traversing an interior volume of the plates. The method includes recirculating liquefied gas to improve cooling efficiency while lowering operation costs. The system and method further provide for integrated measurement and control of the flow of liquefied gas through components of the system. Freezing of the food products occurs at a surface of the food products along where the food products and the plate interface.

Abstract: Systems and methods compress, freeze and store forms at sufficiently low temperatures. A system provides a storage tank of liquefied gas, a gas-liquid separation tank, and a compression chamber. The compression chamber provides compression plates chilled by flow of liquefied gas through conduits traversing an interior volume of the plates. The method comprises recirculating liquefied gas to improve cooling efficiency while lowering operation costs. The system and method further provide for integrated measurement and control of the flow of liquefied gas through the primary components of the system. In one embodiment, the forms are rubber cylinders utilized in the production of torsion axels.

Abstract: In one embodiment, a method of forming frozen ice cream pellets includes supplying an ice cream premix into a loading vessel; loading a loading cylinder with the ice cream premix from the loading vessel, the loading cylinder being connected to the loading vessel; applying a machine-controllable force to expel the ice cream premix from the loading cylinder as ice cream premix pellets; and exposing the ice cream premix pellets to a cryogenic fluid, thereby at least partially freezing the ice cream premix pellets.