Method for packaging facilitated transport membrane

Patent metadata

Field	Value
Publication number	US-11247797-B2
Application number	US-201816484729-A
Country	US
Kind code	B2
Filing date	Jan 24, 2018
Priority date	Feb 14, 2017
Publication date	Feb 15, 2022
Grant date	Feb 15, 2022

Abstract

Provided is a means which makes it possible to prevent quality deterioration of a facilitated transport membrane for a long period of time. A method for packing the facilitated transport membrane selectively allowing a specific gas to permeate therethrough, includes the steps of: putting the facilitated transport membrane in a packaging body having a transmission rate of not more than 10,000 cm3/(m2·24 h·atm) for the specific gas; preventing a contact between the facilitated transport membrane and the specific gas; and lastly sealing the packaging body.

First claim

The invention claimed is:

1. A method for packing a facilitated transport membrane selectively allowing a specific gas to permeate therethrough, the method comprising the steps of:
putting the facilitated transport membrane in a packaging body having a transmission rate of not more than 10,000 cm 3 /(m 2 ·24 h·atm) for the specific gas;
preventing a contact between the facilitated transport membrane and the specific gas; and
lastly sealing the packaging body,
wherein in the step of preventing a contact between the facilitated transport membrane and the specific gas, an inert gas is introduced into the packaging body, and
with regard to a ratio of a volume of the facilitated transport membrane to a volume of gas inside the packaging body at a time point when the packaging body is sealed, the ratio is adjusted so as to be in a range of not less than 0.1 and not more than 10,000.

2. The method as set forth in claim 1 , wherein:
the inert gas is introduced into the packaging body so as to replace a gas inside the packaging body.

3. The method as set forth in claim 1 , wherein:
the specific gas is an acid gas.

4. The method as set forth in claim 3 , wherein:
the acid gas is carbon dioxide.

5. A method for packing a facilitated transport membrane selectively allowing a specific gas to permeate therethrough, the method comprising the steps of:
putting the facilitated transport membrane in a packaging body having a transmission rate of not more than 10,000 cm 3 /(m 2 ·24 h·atm) for the specific gas;
preventing a contact between the facilitated transport membrane and the specific gas; and
lastly sealing the packaging body,
wherein with regard to a relative humidity of gas inside the packaging body at a time point when the packaging body is sealed, the relative humidity is adjusted so as to be in a range of not less than 30% RH and not more than 90% RH at 23° C.

6. A method for producing a facilitated transport membrane package, in which a facilitated transport membrane selectively allowing a specific gas to permeate therethrough is enclosed in a packaging body, the method comprising the steps of:
putting the facilitated transport membrane in the packaging body having a transmission rate of not more than 10,000 cm 3 /(m 2 ·24 h·atm) for the specific gas;
preventing a contact between the facilitated transport membrane and the specific gas; and
sealing the packaging body,
wherein the specific gas is an acid gas.

7. The method as set forth in claim 6 , wherein the acid gas is carbon dioxide.

8. A facilitated transport membrane package, comprising:
a packaging body; and
a facilitated transport membrane enclosed in the packaging body,
the facilitated transport membrane selectively allowing a specific gas to permeate therethrough,
the packaging body having a transmission rate of not more than 10,000 cm 3 /(m 2 ·24 h·atm) for the specific gas, and
the facilitated transport membrane and the specific gas being prevented from coming into contact with each other,
wherein the packaging body is sealed, and
an inert gas is introduced into the packaging body, and
with regard to a ratio of a volume of the facilitated transport membrane to a volume of gas inside the packaging body at a time point when the packaging body is sealed, the ratio is in a range of not less than 0.1 and not more than 10,000.

Assignees

• Sumitomo Chemical Co

Inventors

• Inamoto Kazuya

Classifications

• B01D67/0097

  Storing or preservation · CPC title

• Y02C20/40

  of CO2 · CPC title

• B01D2257/504

  Carbon dioxide · CPC title

• B65B31/02 Primary

  Filling, closing, or filling and closing, containers {or wrappers} in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas · CPC title

• B65B31/00

  Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers · CPC title