Praxair Technology, Inc.

Tu Cam Nguyen

Dante Patrick Bonaquist

Bayram Arman

John Fredric Billingham

Thomas John Bergman, Jr

Kenneth Kai Wong

Joseph Alfred Weber

Mohamed Safdar Baksh

Andrew Chun-Pong Lau

A cryogenic nitrogen production plant wherein all the heat transfer steps, and preferably all the heat transfer and separation steps, are carried out in a brazement which receives feed air and from which is recovered product nitrogen.

Cryogenic nitrogen production system using a single brazement

A process and system for producing a high purity argon product with high argon recovery from an air feed stream utilizing a low ratio argon distillation column, a high ratio argon distillation column and a vacuum pressure swing adsorption. unit in combination with a cryogenic air separation plant. The process and system avoids the necessity for an ultrastaged upper column in the cryogenic air separator plant.

System and method for producing high purity argon

A cryogenic air separation system comprising an integrated core and typically including a double column wherein incoming feed air is cooled in the core which also processes a stream from the double column. A separating section of the core processes a stream from the double column to form product.

Cryogenic air separation system with integrated mass and heat transfer

A cryogenic air separation comprising an integrated core and typically including a double column wherein incoming feed air is cooled in the core which also processes a stream from the double column. A separating section of the core processes a stream from the double column to product.

A cryogenic air separation system wherein an integrated core receives and cools an incoming feed air stream, a rectification section facilitates mass transfer of the feed air stream, a separation section in a heat exchange relationship with the rectification section processes fluid from the rectification section, and a section in a heat exchange relationship with an entrance passage discharges fluid from the integrated core.

Cryogenic air separation system using an integrated core

A cryogenic separation arrangement wherein feed air is processed simultaneously through two regenerator systems and then separated in a reflux condenser, with product and waste from the reflux condenser processed through one and the other respectively of the regenerator systems.

Cryogenic reflux condenser system for producing oxygen-enriched air

A system for producing high purity argon wherein crude argon produced in a cryogenic rectification plant is processed in a pressure swing adsorption unit. Residual gas from the pressure swing adsorption unit is recycled to the cryogenic rectification plant and high purity argon is cooled prior to recovery against oxygen-containing fluid which is subsequently passed into the cryogenic rectification plant.

Growing community of inventors

Tonawanda, NY, United States of America

Tu Cam Nguyen