Praxair Technology, Inc.

Mohammad Abdul-Aziz Rashad

Bayram Arman

Arun Acharya

Dante Patrick Bonaquist

Kenneth Kai Wong

Henry Edward Howard

John Henri Royal

Gary Dee Lang

Richard M Kelly

Joseph Alfred Weber

James R Handley

Matthew Thomas

Richard A Novak

Nick Joseph Degenstein

William J Scharmach

Walter Joseph Olszewski

Boris Yudin

Yi Ma Lenhert

The present invention relates to a method of preparing a gas coolant for the direct cooling of a unit operation under a fixed heat load from its normal operating temperature (e.g., 300° F. and above) to a lower temperature (e.g., below 100° F.) in order to allow for maintenance or other non-routine work to be carried out in said unit operation.

Method for controlling a recycle gas stream utilizing an ejector for the cooling of a unit operation

The present invention relates to a method and system for producing liquefied natural gas (LNG) from a stream of pressurized natural gas which involves a combination of mechanical refrigeration.

Liquid natural gas liquefier utilizing mechanical and liquid nitrogen refrigeration

A refrigeration system wherein an ammonia refrigerant fluid in a cascade refrigeration circuit provides auxiliary refrigeration to a multicomponent refrigerant fluid which passes from an autorefrigerator to provide refrigeration to a heat load.

Multicomponent refrigeration fluid refrigeration system with auxiliary ammonia cascade circuit

A method for generating refrigeration using a turboexpander or reverse Brayton cycle which can more efficiently generate refrigeration especially to cryogenic temperatures using a defined refrigerant mixture containing argon and/or nitrogen.

Method for providing refrigeration using a turboexpander cycle

A method and apparatus for refrigerating and, if desired, liquefying an industrial gas wherein a multicomponent refrigerant fluid is used to generate refrigeration in a single circuit which includes a single phase separation and recycle after an initial heat exchange stage.

Cryogenic industrial gas refrigeration system

A method for providing refrigeration such as to an insulated enclosure wherein a defined multicomponent refrigerant fluid undergoes a phase change coupled with Joule-Thomson expansion to generate refrigeration over a wide temperature range which may comprise from ambient to low temperatures.

Method for providing refrigeration

A method for liquefying an industrial gas wherein a portion of the requisite refrigeration is generated by a multicomponent refrigerant circuit and a portion is generated by turboexpansion of either a portion of the industrial gas or a portion of the multicomponent refrigerant.

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Kenmore, NY, United States of America

Mohammad Abdul-Aziz Rashad