Multi-layer composite gas separation membranes, methods for preparation, and use

Patent metadata

Field	Value
Publication number	US-11642629-B2
Application number	US-202016825523-A
Country	US
Kind code	B2
Filing date	Mar 20, 2020
Priority date	Mar 20, 2020
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

Methods and systems for producing and using multi-layer composite co-polyimide membranes, one method for producing including preparing a microporous or mesoporous membrane support material for coating; applying a sealing layer to the membrane support material to prevent intrusion into the membrane support material of co-polyimide polymer; applying a first permselective co-polyimide layer atop and in contact with the sealing layer; and applying a second permselective co-polyimide layer atop and in contact with the first permselective co-polyimide layer.

First claim

What is claimed is:

1. A method for producing a multi-layer composite co-polyimide membrane, the method comprising the steps of:
preparing a microporous or mesoporous membrane support material for coating;
applying a sealing layer to the membrane support material to prevent intrusion into the membrane support material of a co-polyimide polymer;
applying a first permselective co-polyimide layer comprising the co-polyimide polymer, the co-polyimide polymer comprising block (6FDA-CARDO)/(6FDA-durene) atop and in contact with the sealing layer; and
applying a second permselective co-polyimide layer comprising block (6FDA-CARDO)/(6FDA-durene) atop and in contact with the first permselective co-polyimide layer.

2. The method according to claim 1 , where the first permselective co-polyimide layer and second permselective co-polyimide layer further comprise random co-polymers.

3. The method according to claim 2 , where the first permselective co-polyimide layer and second permselective co-polyimide layer comprise the same random co-polymers.

4. The method according to claim 1 , where the first permselective co-polyimide layer and second permselective co-polyimide layer result in a thickness between about 1-3 μm.

5. The method according to claim 1 , where the sealing layer comprises a solvent material being the same as a solvent material into which a first co-polyimide of the first permselective co-polyimide layer and into which a second co-polyimide of the second permselective co-polyimide layer are dissolved for the steps of applying the first permselective co-polyimide layer and second permselective co-polyimide layer.

6. The method according to claim 1 , where the sealing layer further comprises a gutter layer.

7. The method according to claim 6 , where the gutter layer comprises poly [1-(trimethylsilyl)-1-propyne] (PTMSP).

8. The method according to claim 1 , where the microporous or mesoporous membrane support material for coating includes a support material selected from the group consisting of: flat sheet support material; hollow fiber support material; and combinations thereof.

9. The method according to claim 1 , further comprising a step of crosslinking the first permselective co-polyimide layer and the second permselective co-polyimide layer.

10. The method according to claim 1 , where the sealing layer comprises a component selected from the group consisting of: Chloroform (CHCl 3 ); N,N-dimethylformamide (DMF); dichloromethane (DCM); N,N-dimethyl acetamide (DMAc); Acetone; Tetrahydrofuran (THF); N-Methyl-2-pyrrolidone (NMP); tetra chloromethane (CCl 4 )); and combinations of the same.

11. The method according to claim 1 , where a step of drying is carried out after each of the steps of applying the sealing layer, applying the first permselective co-polyimide layer, and applying the second permselective co-polyimide layer.

12. The method according to claim 1 , further comprising a step of formulating a first co-polyimide for the first permselective co-polyimide layer and a step of formulating a second co-polyimide for the second permselective co-polyimide layer, where the steps of formulating comprise combining more than one monomer in a mixture of monomers, where the more than one monomer is selected from the group consisting of: 2,2′-bis-(3,4-dicarboxyphenyl) hexafluoropropane dianhydride (6FDA); 1,3-phenylenediamine (mPDA); durene diamine; 3,4,9,10-perylentetracarbonsauredianhydrid (PTCDA); pyromellitic dianhydride (PMDA); 1,4-bis(4-aminophenoxy)triptycene (BAPT); 4,5,6,7-Tetrabromo-2-azabenzimidazole (TBB); 4,4′-(9-Fluorenylidene)dianiline (FDA); and 4,4′-Oxydiphthalic anhydride (ODA).

13. The method according to claim 1 , where the first permselective co-polyimide layer or second permselective co-polyimide layer further comprises a polymer unit selected from the group consisting of: (6FDA-mPDA)/(6FDA-durene); (6FDA-PTCDA-FDA); (6FDA-TBB-FDA); (6FDA-B APT-FDA); (PTCDA-FDA)/(PMDA-mPDA); (PMDA-FDA)/(PTCDA-mPDA); (ODA-FDA)/(PTCDA-mPDA); (6FDA-BAPT)/(6FDA-FDA); (PTCDA-mPDA)/(6FDA-FDA); (PTCDA-FDA)/(ODA-mPDA); (PTCDA-FDA)/(6FDA-FDA); (6FDA-TBB)/(6FDA-FDA); (6FDA-TBB)/(6FDA-durene); (6FDA-mPDA)/(6FDA-B APT); (PTCDA-mPDA)/(6FDA-FDA); (6FDA-mPDA-BAPT); and (6FDA-FDA-mPDA).

14. The method according to claim 1 , further comprising a step of formulating a first co-polyimide for the first permselective co-polyimide layer and a step of formulating a second co-polyimide for the second permselective co-polyimide layer, where the steps of formulating comprise combining at least three distinct moieties polymerized together, the moieties including a 2,2′-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA) based moiety; a 9,9-bis(4-aminophenyl) fluorene (CARDO) based moiety; and 2,3,5,6-tetramethyl-1,4-phenylenediamine (durene diamine) based moiety.

15. The method according to claim 1 , further comprising a step of formulating a first co-polyimide for the first permselective co-polyimide layer and a step of formulating a second co-polyimide for the second permselective co-polyimide layer, where the steps of formulating comprise combining at least three distinct moieties polymerized together, the three distinct moieties including a first moiety, a second moiety, and a third moiety;
wherein the first moiety comprises a 2,2′-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA) based moiety;
the second moiety comprises a 4,4′-(hexafluoroisopropylidene)dianiline (6FpDA) based moiety; and
the third moiety comprises a component selected from the group consisting of: a 9,9-bis(4-aminophenyl) fluorene (CARDO) based moiety; a 2,3,5,6-tetramethyl-1,4-phenylenediamine (durene diamine) based moiety; a 2,2′-bis(trifluoromethyl)benzidine (ABL-21) based moiety; a 3,3′-dihydroxybenzidine based moiety; and a 3,3′-(hexafluoroisopropylidene)dianiline based moiety.

16. The method according to claim 1 , further comprising a step of formulating a first co-polyimide for the first permselective co-polyimide layer and a step of formulating a second co-polyimide for the second permselective co-polyimide layer, where the steps of formulating comprise combining at least three distinct moieties polymerized together, the three distinct moieties including a first moiety, a second moiety, and a third moiety;
wherein the first moiety comprises a 2,2′-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA) based moiety;
the second moiety comprises a 2,4,6-trimethyl-m-phenylenediamine (DAM) based moiety; and
the third moiety comprises a component selected from the group consisting of: a 4,4′-(hexafluoroisopropylidene)dianiline (6FpDA) based moiety; a 9,9-bis(4-aminophenyl) fluorene (CARDO) based moiety; a 2,3,5,6-tetramethyl-1,4-phenylenediamine (durene diamine) based moiety; a 2,2′-bis(trifluoromethyl)benzidine (ABL-21) based moiety; a 3,3′-dihydroxybenzidine based moiety; and a 3,3′-(hexafluoroisopropylidene)dianiline based moiety.

17. The method according to claim 1 , where the first permselective layer or second permselective layer comprises a 2,2′-bis(3,4-dicarboxyphenyl)hexafluoropropane dianhydride (6FDA) based moiety and a 2,2′-bis(trifluoromethyl)benzidine (ABL-21) based moiety.

18. The method according to claim 1 , further comprising the step of formulating a first co-polyimide for the first permselective co-polyimide layer and formulating a second co-polyimide for the second permselective co-polyimide layer, where the steps of formulating comprise combining at least three distinct moieties polymerized together, the three distinct moieties including a first moiety, a second mo

Assignees

• Saudi Arabian Oil Co

Inventors

• Yahaya Garba Oloriegbe
• Choi Seung-Hak
• Bahamdan Ahmad

Classifications

• B01D71/643

  Polyether-imides · CPC title

• B01D67/00091

  by evaporation · CPC title

• B01D69/125 Primary

  In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction · CPC title

• B01D2325/04

  Characteristic thickness · CPC title

• C10L2290/548

  Membrane- or permeation-treatment for separating fractions, components or impurities during preparation or upgrading of a fuel · CPC title