Praxair Technology, Inc.

Nancy Jean Lynch

Dante Patrick Bonaquist

Jalal Hunain Zia

Bayram Arman

Raymond Francis Drnevich

Minish Mahendra Shah

Arun Acharya

John Henri Royal

John Fredric Billingham

James R Handley

Michael John Stanko

Barry Alan Minbiole

Mark Edward Vincett

Kevin William Mahoney

Susan Marie Sattan

Kevin John Potempa

Shanda Gardner Fry

Paul Arthur Henry

Mark Julian Roberts

A superconducting cable cooling system, wherein coolant continually provides cooling to superconducting cable, comprising a plurality of nodes within a superconducting cable network and a plurality of legs of superconducting cable which interconnect each of the nodes of the superconducting cable network.

Superconducting cable cooling system

A method for operating a pulse tube cryocooler system wherein in the event the mean pressure of the working gas within the fixed volume of the cryocooler undergoes a change, the operation of the system is kept from severe degradation by changing the frequency of the pressure wave generator driving the cryocooler directly with the change in the mean pressure.

Methods for operating a pulse tube cryocooler system with mean pressure variations

A system for generating low temperature refrigeration for use such as cooling superconducting cable wherein a neon based refrigerant fluid is work expanded by a sealed turboexpander/loader to generate refrigeration which is used to cool heat transfer fluid for provision to the use point.

Cryogenic neon refrigeration system

A method wherein refrigeration is generated, preferably using a pulse tube cryocooler or refrigerator, to produce cold working gas which is used to liquefy coupling fluid circulating between a coupling fluid liquid reservoir and a refrigeration load, such as superconductivity equipment, using thermo-siphon effects.

Thermo-siphon method for providing refrigeration to a refrigeration load

A pulse tube system especially useful for producing and delivering refrigeration at very cold temperatures wherein a product fluid such as hydrogen is preferably precooled and then liquefied, subcooled and/or densified by heat exchange with ultra cold gas generated by a pulsing compression wave which rejects heat into a cryogen fluid heat sink.

Cryogenic pulse tube system

An integrated cryogenic air separation gas turbine system wherein heat of compression within the feed air is provided to nitrogen produced in the cryogenic air separation plant and the heated nitrogen is provided to a gas turbine along with combustion reaction products to produce power.

Cryogenic air separation and gas turbine integration using heated nitrogen

A cryogenic air separation system wherein a portion of the feed air is compressed to a very high pressure, bypasses the primary heat exchanger, and is turboexpanded to a low pressure to supply refrigeration in one step from the warm end temperature to the cryogenic temperature of the cryogenic air separation plant.

Cryogenic air separation system with high ratio turboexpansion

A cryogenic rectification system for producing argon employing an argon stripping column which receives a feed in its upper portion from an associated cryogenic air separation plant, and which is reboiled by another fluid taken from the cryogenic air separation plant.

Cryogenic argon production system with thermally integrated stripping

A serial column system for producing relatively large quantities of both high purity nitrogen gas and high purity nitrogen liquid using a first column producing the high purity gas and a second column producing the high purity liquid, with second column top fluid refluxing the first column.

Serial column cryogenic rectification system for producing high purity

A system for liquefying low boiling point gases wherein a mixture of feed gas and recirculating refrigerant gas is compressed, a first portion turboexpanded, a second portion compressed to a supercritical pressure, and the supercritical fluid cooled against the turboexpanded fluid to produce cryogenic liquid.

System for producing cryogenic liquid

A cryogenic rectification system for producing high pressure oxygen wherein a portion of the feed air is condensed by indirect heat exchange with pressurized liquid oxygen and then passed, preferably after subcooling, into the lower pressure column of a double column system.

Cryogenic rectification system for producing high pressure oxygen

A cryogenic rectification system for producing low purity oxygen and high purity oxygen employing an offset dual column with bottom reboil of the lower pressure column effected by condensing feed air, with intermediate reboil of the lower pressure column effected by condensing higher pressure column top vapor, and with waste nitrogen turboexpansion to generate refrigeration.

Cryogenic rectification system for producing low purity oxygen and high

A cryogenic rectification system wherein additional stripping vapor for the lower pressure column of a double column is produced from higher pressure column bottoms and feed for the argon column is taken from the upper portion of the lower pressure column and first processed through a stripping column. Lower purity oxygen is recovered either directly from the lower pressure column or after first being processed in an auxiliary column which additionally produces higher purity oxygen.

Cryogenic rectification system for producing argon and lower purity

A cryogenic rectification system having high recovery of both higher purity and lower purity oxygen which employs a side column having a bottom reboiler wherein feed air is partially condensed and the feed air vapor remaining after the partial condensation is turboexpanded prior to rectification.

Growing community of inventors

North Tonawanda, NY, United States of America

Nancy Jean Lynch