Air Products and Chemicals, Inc.

Other

Sang Kook Lee

Justin David Bukowski

Robert Paul

Mark Ephraim Levine

Carolyn Taylor Zelson

Donn Michael Herron

William T Kleinberg

David Ross Graham

Andrew Wilson Wang

Jung Soo Choe

William Thomas Kleinberg

The present disclosure relates to a radial flow reactor including a pair of beds configured to produce a product by processing a raw material supplied thereto. A substance being produced or the product is movable between the pair of beds before the product is moved to a separate reservoir. The ratio of the area of an outlet with respect to the area of an inlet in each of the pair of beds is adjusted such that, when the substance being produced or the product is introduced into the outlet of one bed of the pair of beds from the other bed of the pair of beds, limited processing efficiency caused by the limited area of the outlet in each of the pair of beds is overcome.

Radial flow reactor

Pressure swing adsorption process for the separation of a feed gas mixture comprising (a) providing a pressure swing adsorption system comprising one or more composite beds, each composite bed comprising adsorbent material disposed in two or more vessels in parallel flow configuration, each vessel having a feed end and a product end; (b) performing cyclic sequential steps comprising adsorption/make product, withdrawing gas at decreasing pressure from the composite bed, purging the composite bed, and introducing gas into the composite bed at increasing pressure; and (c) for any of the sequential steps, setting a flow rate or flow rates of one or more gases selected from the group consisting of gas introduced into or withdrawn from the feed end or ends of any of the two or more vessels and gas introduced into or withdrawn from the product end or ends of any of the two or more vessels.

Pressure swing adsorption method and system with multiple-vessel beds

A method and apparatus for producing high purity argon by combined cryogenic distillation and adsorption technologies is disclosed. Crude argon from a distillation column or a so-called argon column is passed to a system of adsorption vessels for further purification. Depressurization gas from adsorption is introduced back, in a controlled manner, to the distillation column and/or a compressor or other means for increasing pressure. Particulate filtration and getter purification may optionally be used.

Combined cryogenic distillation and PSA for argon production

Pressure swing adsorption process with controlled internal depressurization flow

A gas transfer segment of a vacuum swing adsorption process cycle utilizing multiple parallel adsorbent beds which undergo cyclic process steps to separate the components of a feed gas mixture, each bed having a feed end and a product end, wherein the gas transfer segment comprises a step of withdrawing a waste gas stream from the feed end of a first bed, withdrawing a transfer gas from the product end of the first bed and introducing the transfer gas into the product end of a second bed, and withdrawing a waste gas stream from the feed end of the second bed.

Vacuum swing adsorption process with controlled waste gas withdrawal

System for restraining the upward motion of granular material in a vessel containing a bed of the granular material through which a fluid flows in an upward direction. The system comprises flexible porous basket within the vessel in contact with the top of the bed of granular material and in contact with the inner walls of the vessel above the bed of granular material, wherein the porous basket has openings which are smaller than the smallest particles of the granular material such that granular material does not pass through the openings. The system also includes a layer of solid bodies located within the flexible porous basket wherein the solid bodies press the flexible porous basket against the top of the bed of granular material and against the inner walls of the cylindrical vessel above the bed of granular material.

Granular bed restraint system

A process for pressure swing adsorption of oxygen from a gas mixture containing at least oxygen and nitrogen to recover an unadsorbed nitrogen enriched product from a plurality of parallel piped adsorbent beds undergoing adsorption, depressurization and repressurization wherein the improvement is conducting a pressure transfer from one bed to another from an intermediate point of the bed finishing adsorption to a point closer to the feed end of a bed that is repressurizing to improve productivity and recovery of nitrogen enriched gas in the process.

Nitrogen PSA with intermediate pressure transfer

The present invention is a nitrogen pressure swing adsorption process for separating gas mixtures containing nitrogen and oxygen, such as air, using a unique gas transfer process step, continuous feed gas introduction and an appropriate isolation step with continued product purge/repressurization to achieve high purity nitrogen product of 99.9% or greater by volume nitrogen, preferably 99.99% or greater by volume of nitrogen.

High purity nitrogen PSA utilizing controlled internal flows

The present invention is a pressure swing adsorption process for separating a more strongly adsorbed gas component from a less strongly adsorbed gas component in a feed gas mixture at higher recoveries and productivity and less capital cost by the use of void space gas recycle, membrane based nitrogen enrichment of feed gas and the elimination of pressure equalization steps. The process is particularly amenable to air separation wherein nitrogen product is recovered and an oxygen byproduct is removed.

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Breinigsville, PA, United States of America

Sang Kook Lee