Pressure response method for determining properties of species-dependent leakages in gas processing equipment

Patent metadata

Field	Value
Publication number	US-10060844-B2
Application number	US-201615161980-A
Country	US
Kind code	B2
Filing date	May 23, 2016
Priority date	May 23, 2016
Publication date	Aug 28, 2018
Grant date	Aug 28, 2018

Abstract

A system for building a gas processing apparatus includes a compressed gas source, a pressure modulator in communication with the gas source, and a chamber configured to receive a gas permeable material. The chamber is further configured with a first chamber area on one side of the material and with a second chamber area on a second side of the material. A sensor is configured to measure over time a pressure differential between the first and second chamber areas. A memory stores performance characteristic data for a plurality of gas processing apparatus. A processor converts the pressure differential to a material characteristic of the gas permeable material, and compares the material characteristic to at least one selected performance characteristic of the gas processing apparatus.

First claim

I claim:

1. A method of building a gas processing apparatus, comprising:
providing a chamber;
sequentially placing different materials in the chamber to create a sequential plurality of first chamber areas and second chamber areas;
for each material and respective first chamber area and second chamber area:
inputting, over a time, an oscillating pressure into the first chamber area;
measuring pressure, over the time, in the first chamber area;
measuring pressure, over the time, in the second chamber area;
determining, over the time, a pressure differential between the first chamber area and the second chamber area;
wherein the pressure differential is based on at least one of a phase difference and an amplitude difference; and
converting the pressure differential to a material characteristic;
wherein the material characteristic is one of a permeance factor and a leakage rate constant;

comparing at least one of the material characteristics for the different materials to at least one performance characteristic of the gas processing apparatus.

2. The method of claim 1 , further comprising creating a database of pressure differential data.

3. The method of claim 1 , further comprising creating a database of performance characteristic data.

4. The method of claim 1 , further comprising designing a computer simulated gas permeable apparatus based on the material characteristic.

5. The method of claim 4 , further comprising placing the computer simulated gas permeable apparatus in a computer simulated operation.

6. The method of claim 5 , further comprising determining whether the computer simulated operation meets at least one apparatus performance characteristic.

Assignees

• Honeywell Int Inc

Inventors

• Loeffelholz David

Classifications

• G01N15/0806 Primary

  Details, e.g. sample holders, mounting samples for testing · CPC title

• G01N2015/086

  of films, membranes or pellicules · CPC title

• G01N15/0826

  and measuring fluid flow rate, i.e. permeation rate or pressure change · CPC title