Praxair Technology, Inc.

Union Carbide Industrial Gases Technology Corporation

Prakair Technology, Inc.

Theodore Fringelin Fisher

Dante Patrick Bonaquist

Joseph Alfred Weber

James R Dray

M Mushtaq Ahmed

Yijian Jin

Raymond Francis Drnevich

David R Parsnick

Raymond R Olson, Jr

Michael W Wisz

A system for providing refrigeration to a chemical processing operation wherein a refrigerant fluid is compressed and cooled, and a portion turboexpanded prior to being passed to a chemical processing operation for direct contact or indirect heat exchange.

System for providing refrigeration for chemical processing

A method and apparatus for providing direct contact refrigeration to a heat source wherein refrigeration is generated using a recirculating defined multicomponent refrigerant fluid, and transferred to a direct contact refrigerant fluid which directly contacts the heat source.

System for providing direct contact refrigeration

A cryogenic rectification system comprising a rare gas concentrator column for producing a liquid having an enhanced concentration of krypton and xenon, and which processes atmospheric fluids and also produces gaseous oxygen and liquid nitrogen.

Cryogenic rectification system for processing atmospheric fluids

A method for cleaning and recycling protective atmosphere for a float glass facility wherein contaminated protective atmosphere is cooled, preferably while scrubbing out particulates, compressed, and then purified by passage through a bed comprising water selective and hydrogen sulfide selective adsorbents.

Gas recycle for float glass system

A cryogenic air separation plant or a combined pressure swing adsorption plant and membrane separation plant is integrated with a float glass manufacturing system wherein oxygen from the plant is used for oxy-fuel combustion in the melt furnace and nitrogen from the plant is used as a protective atmosphere in the float glass forming chamber.

Air separation float glass system

A process for producing ammonia synthesis gas and recovering argon in conjunction with a low-purity oxygen separating unit.

Process for producing ammonia and recovering argon using low purity

A cryogenic system for the recovery of fluorine compounds from a carrier gas stream such as an effluent stream from a semiconductor facility comprising three cryogenic rectification columns and a mass transfer contacting device.

Cryogenic rectification system for recovery of fluorine compounds

A cryogenic system for the recovery of fluorine compounds from a carrier gas stream such as an effluent stream from a semiconductor facility comprising combining the carrier gas feed stream with additive liquid to keep fluorine compounds from solidifying and to reduce the vapor pressure of the fluorine compounds, followed by separation and recovery using a cryogenic rectification column system.

Cryogenic rectification system for fluorine compound recovery using

A cryogenic rectification system employing a double column and two auxiliary reboilers associated with one or two auxiliary columns wherein both lower purity oxygen and higher purity oxygen is produced.

Cryogenic rectification system for producing dual purity oxygen

A cryogenic system for the recovery of fluorine compounds from a carrier gas stream such as an effluent stream from a semiconductor facility comprising a mass transfer contacting device, such as a cryogenic wash column, integrated with a cryogenic rectification column system.

Cryogenic rectification system for fluorine compound recovery

A cryogenic air separation system wherein high pressure oxygen is transition-warmed against both transition-cooling feed air and transition-cooling nitrogen, supplying added reflux for the air separation and enabling column operation at higher pressures without degraded recovery.

Cryogenic rectification system with dual heat pump

An argon purification system comprising an ambient temperature molecular sieve adsorption step, an ambient temperature chemisorption step, and a cryogenic temperature adsorption step, particularly useful with liquefaction of the purified argon.

Growing community of inventors

Amherst, NY, United States of America

Theodore Fringelin Fisher