Praxair Technology, Inc.

Union Carbide Industrial Gases Technology Corporation

Union Carbide Corporation

Richard A Victor

Michael James Lockett

Dante Patrick Bonaquist

James D Augustyniak

Robert Zawierucha

Bayram Arman

Arun Acharya

Christian Friedrich Gottzmann

Harry Cheung

James R Dray

Kenneth Kai Wong

Robert A Beddome

James Stanley Schneider

Scott Lawrence Cooper

John R Bianchi

Kenneth McIlroy

Mark F Taylor

A refrigeration system wherein refrigeration is generated at a relatively steady output by a refrigeration circuit and passed into a coupling fluid for transfer to a refrigeration load using a coupling fluid stabilizing circuit having a stabilizing reservoir.

Refrigeration system with coupling fluid stabilizing circuit

An apparatus comprising a rotatable mass of structured packing for mass or heat transfer between two contacting fluids of different densities wherein the packing mass is made up of corrugated sheets of involute shape relative to the axis of the packing mass and form a logarithmic spiral curved counter to the direction of rotation.

Compact contacting device

A distillation system, particularly useful for the cryogenic distillation of feed air, employing a first column and a partitioned second column whereby three separate product streams may be withdrawn from the partitioned column.

Distillation system with partitioned column

An improved packed column distillation system, which may be particularly advantageous for use with cryogenic distillation such as the cryogenic distillation of air, wherein external heat is provided at the column wall, especially at a stripping section of the column, to vaporize liquid formed on the inner surface of the column wall resulting in improved separation efficiency with lower packed bed height.

Packed column distillation system

An apparatus for distributing liquid over the cross section of a liquid-vapor contacting column comprising a distributor plate having orifices for downward liquid flow and risers for upward vapor flow. Above the distributor plate is a trough for receiving liquid to be distributed. The vapor risers directly below the trough extend through the trough. The trough floor has annular openings around the penetrating vapor risers to discharge liquid onto the distributor plate below.

Liquid distributor for a vapor-liquid contacting column

A cryogenic air separation system using a random packing section below a section of structured packing and redistributing liquid between sets of random and structured Packing sections.

Cryogenic air separation using random packing

A sampling system for cryogenic liquid sampling which passes vaporized cryogenic fluid to an analyzer through a conduit having a defined restriction such as an orifice at or downstream of the input and which prevents choke flow in the conduit by simultaneously reducing the pressure which promotes choke flow and improving the ratio of the fluid pressure at and downstream of the restriction in the direction which resists choke flow.

Cryogenic liquid sampling system

A cryogenic rectification method employing rectification over a defined height within the lower pressure column of a double column system which reduces the nitrogen concentration of an argon, nitrogen, oxygen mixture while maintaining the argon concentration at or near its maximum enabling production of nitrogen-free argon directly from the argon column system.

Cryogenic rectification method for producing refined argon

Structured metal column packing with corrugations and textured surfaces having a defined construction of the corrugation corners which enables significantly improved performance especially under turndown conditions.

Structured column packing with improved turndown and method

A cryogenic distillation system employing a multisection column wherein structure packing of different packing density is employed in at least two sections of the column.

Variable density structured packing cryogenic distillation system

A cryogenic rectification system characterized by a hybrid argon column having trays in the lower portion and packing in the upper portion whereby the argon column is operated at a lower pressure thus enabling improved argon recovery while maintaining the pressure sufficiently high at the lower end of the argon column to enable fluid flow back to the main column system without need for pressurization.

Cryogenic air separation system with hybrid argon column

Structured column packing having a fluted surface wherein the flute elevation forms a shelf sufficient to cause downflowing liquid to pool on the shelf thereby enabling more efficient countercurrent vapor-liquid mass transfer.

Structured column packing with liquid holdup

A double rectification column air separation system with an associated argon column having a hybrid upper column containing both trays and packing in a defined construction wherein the upper column contains essentially exclusively packing below the argon column feed takeoff.

Growing community of inventors

Grand Island, NY, United States of America

Richard A Victor