Air Products and Chemicals, Inc.

Glenn Paul Wagner

Roger Dean Whitley

Matthew James Labuda

Shubhra Jyoti Bhadra

James Michael Occhialini

Craig E Steigerwalt

David R Schiff

Timothy Christopher Golden

Peter D Byar

Andrew Weiman

Dingjun Wu

Seth McCue GaleWyrick

Xue Mei Liu

Michael Jamie McKerrow

Jinzhong Liu

Seth Galewyrick

Andrew M Weiman

Michael Jamie Mckerrow

Seth Gale Wyrick

Disclosed herein are multi-bed rapid cycle pressure swing adsorption (RCPSA) processes for separating Ofrom Nand/or Ar, wherein the process utilizes at least five adsorption beds each comprising a kinetically selective adsorbent for Ohaving an Oadsorption rate (1/s) of at least 0.20 as determined by linear driving force model at 1 atma and 86&#xb0; F.

Multi-bed rapid cycle kinetic PSA

Disclosed herein is a stator plate for a rotary bed PSA apparatus that has an exhaust slot that has first and second sections for receiving blowdown and purge exhaust gas streams, the sections being separated by a flow restriction that restricts but does not full prevent gas flow between the sections, or that has separate exhaust slots for separately receiving the blowdown and purge exhaust gas streams. Also disclosed is pressure swing adsorption (PSA) apparatus including such a stator plate, and a rotary bed PSA process using such an apparatus.

Port separation for rotary bed PSA

A rotary valve is disclosed having a rotor and stator that utilizes at least one compression spring to provide contact between the rotor and stator. The spring(s) is configured to oppose the pressure forces that urge the rotors and stators apart and reduce the amount of torque necessary to turn the rotors in the valve while preventing leakage from between the rotor and stator. The spring(s) may be positioned within the valve by a spring locating features.

Rotary valve

Portable medical oxygen concentrator comprising an air separation system adapted to recover oxygen from air; a bottom platform and a shell having an outer wall, wherein the shell is detachably connected to the bottom platform, wherein the shell and bottom platform define an enclosed volume when the shell is connected to the bottom platform, and wherein the air separation system is disposed in the enclosed volume; and one or more rechargeable batteries detachably connected to the outer wall of the shell and adapted to provide power to drive the air separation system. The air separation system may comprises a pressure swing adsorption system having two or more adsorbent columns and a rotary valve for directing gas flow sequentially to, from, and among the columns. A base assembly attached to the bottom platform may be adapted to support the two or more adsorbent columns and the rotary valve.

Portable medical oxygen concentrator

Rotary valve comprising (a) a rotor having a rotor face rotatable about an axis perpendicular to the rotor face, a plurality of openings, and at least one passage connecting at least one pair of the plurality of openings; (b) a stator having a stator face in sealing contact with the rotor face to form a planar rotary valve seal with an outer periphery, a plurality of openings in the stator face that are connected to respective passages through the stator, and wherein at least one of the passages through the stator is a stator vacuum passage directly connected to a vacuum pump; (c) a sealed valve chamber having an interior volume contiguous with the outer periphery of the rotary valve seal, which chamber is sealed from the atmosphere surrounding the rotary valve; and (d) a vacuum vent passage connected to the sealed valve chamber.

Rotary valve with internal leak control system

System for producing an oxygen-rich gas comprising (a) a primary gas mover including a first and a second compressor, wherein the primary gas mover is characterized by a weight W; (b) a drive motor adapted to drive the first and second compressors; (c) a rechargeable power supply characterized by a weight, W; and (d) a pressure/vacuum swing adsorption unit adapted to separate the pressurized feed air into an oxygen-rich product at a product flow rate Fand an oxygen-depleted waste gas, wherein the adsorption unit comprises a plurality of adsorber beds containing an adsorbent and characterized by a total adsorbent weight W; and wherein the combined weight, W, of the adsorbent, the primary gas mover, and the rechargeable power supply is characterized by the expression0.75where Fis in liters per min (at 23&#xb0; C. and 1 atma pressure), and W, W, and Ware in pounds.

Weight-optimized portable oxygen concentrator

Oxygen concentrator system having a portable oxygen generator unit adapted to generate a non-humidified oxygen-rich gas and a stationary base unit adapted to generate a humidified oxygen-rich gas, wherein the portable oxygen generator unit and the stationary base are adapted for operation in a coupled mode and an uncoupled mode. The portable oxygen generator unit includes a first flow coupling adapted to receive the humidified oxygen-rich gas when operating in the coupled mode, piping means adapted to combine the non-humidified oxygen-rich gas and the humidified oxygen-rich gas to form a humidified oxygen-rich gas product, and an oxygen-rich gas product delivery port. The stationary base unit is adapted to recharge a rechargeable power supply system in the portable oxygen generator unit when the units are coupled.

Simplified dual mode medical oxygen concentrator

System for producing an oxygen-rich gas comprising (a) a primary gas mover including a first and a second compressor, wherein the primary gas mover is characterized by a weight W; (b) a drive motor adapted to drive the first and second compressors; (c) a rechargeable power supply characterized by a weight, W; and (d) a pressure/vacuum swing adsorption unit adapted to separate the pressurized feed air into an oxygen-rich product at a product flow rate Fand an oxygen-depleted waste gas, wherein the adsorption unit comprises a plurality of adsorber beds containing an adsorbent and characterized by a total adsorbent weight W; and wherein the combined weight, W, of the adsorbent, the primary gas mover, and the rechargeable power supply is characterized by the expression0.75 F&#x3c;W&#x3c;2.02 Fwhere Fis in liters per min (at 23&#xb0; C. and 1 atma pressure), and W, W, and Ware in pounds.

Oxygen generation system having a portable oxygen generator unit including a portable air separation device for the generation of an oxygen-rich gas, a primary gas pump including means to supply air to the portable air separation device, a primary motor to drive the gas pump, a rechargeable power supply to drive the motor, connector means adapted to deliver power to the rechargeable power supply, flow coupling means to transfer the oxygen-rich gas from the portable oxygen generator unit, and a first oxygen-rich gas product discharge port. The system also includes a stationary base unit adapted to couple with the portable oxygen generator unit, wherein the stationary base unit has a stationary power supply system including connector means adapted to recharge the rechargeable power supply in the portable oxygen generator unit, flow coupling means to receive the oxygen-rich gas from the portable oxygen generator unit, and an optional second oxygen-rich gas product discharge port.

Dual mode medical oxygen concentrator

Rotary sequencing valve comprising a rotor having a rotor face rotatable about an axis perpendicular to the rotor face, wherein the rotor face has a plurality of openings, one or more of which are disposed at a selected radial distance from the axis, and wherein the rotor includes at least one passage connecting at least one pair of the plurality of openings. The valve includes a flexible port plate having a first side and a second side, wherein the first side faces the rotor and engages the rotor such that the flexible port plate can be rotated coaxially by the rotor and can move axially with respect to the rotor, wherein the flexible port plate has a plurality of ports between the first and second sides, which ports are aligned with the openings in the rotor face. The valve also includes a stator having a stator face disposed coaxially with the rotor and the flexible port plate, wherein the second side of the flexible port plate is in sealable, slidable rotary contact with the stator face, wherein the stator face has a plurality of openings, some of which are disposed at the selected radial distance from the axis, and wherein the plurality of openings extend as passages through the stator. The valve may be used in pressure or temperature swing adsorption systems.

Growing community of inventors

Fogelsville, PA, United States of America

Glenn Paul Wagner