Separation membrane for olefin separation and olefin separation method using the same

Patent metadata

Field	Value
Publication number	US-10434463-B2
Application number	US-201815920962-A
Country	US
Kind code	B2
Filing date	Mar 14, 2018
Priority date	Mar 23, 2017
Publication date	Oct 8, 2019
Grant date	Oct 8, 2019

Abstract

A separation membrane for olefin separation and olefin separation method using the same are provided.

First claim

What is claimed is:

1. A separation membrane for olefin separation comprising:
aminated polymer, sulfonated polymer or mixtures thereof;
transition metal; and
electron acceptors.

2. The separation membrane for olefin separation according to claim 1 ,
when the separation membrane for olefin separation comprise the mixtures of aminated polymer and sulfonated polymer,
the sulfonated polymer is included in the separation membrane for olefin separation at the concentration of up to 80 weight %.

3. The separation membrane for olefin separation according to claim 1 ,
when the separation membrane for olefin separation comprise the mixtures of aminated polymer and sulfonated polymer,
the sulfonated polymer is included in the separation membrane for olefin separation at the concentration of 30˜70 weight %.

4. The separation membrane for olefin separation according to claim 1 ,
when the separation membrane for olefin separation comprise the mixtures of aminated polymer and sulfonated polymer,
the sulfonated polymer is included in the separation membrane for olefin separation at the concentration of 50 weight %.

5. The separation membrane for olefin separation according to claim 1 ,
wherein the aminated polymer is selected from the group consisting of chitosan, linear polyethyleneimine (LPEI), branched polyethyleneimine (BPEI), polydopamine, poly(vinylamine), poly(allylamine), poly(l-lysine), aminated methylcellulose, and aminated ethylcellulose.

6. The separation membrane for olefin separation according to claim 1 ,
wherein the sulfonated polymer is selected from the group consisting of sulfonated polysulfone, sulfonated polyetherether ketone, sulfonated polyimide, sulfonated polyamide, sulfonated polycarbonate, sulfonated cellulose acetate, sulfonated polyethylene, sulfonated polypropylene, sulfonated polyvinylidene fluoride, sulfonated polyvinyl chloride, sulfonated polyester, sulfonated polyacrylonitrile, sulfonated polystyrene, sulfonated butadiene, and copolymers thereof.

7. The separation membrane for olefin separation according to claim 1 ,
wherein the transition metal is one or more metals selected from the group consisting of Ag, Cu, Ti, Hf, Zr, V, Nb, Ta, Mo, W, Tc, Re, Co, Rh, Ir, Ni, Pd, Pt, Zn, and Sn.

8. The separation membrane for olefin separation according to claim 1 ,
wherein the electron acceptors are one or more selected from the group consisting of Tetrathiafulvalene, p-benzoquinone, and 7,7,8,8-tetracyanoquinodimethane (TCNQ).

9. The separation membrane for olefin separation according to claim 1 ,
wherein the electron acceptors is contained in an amount of 1˜15 parts by weight based on 100 parts by weight of the separation membrane composed of aminated polymer, sulfonated polymer or mixtures thereof; and transition metal.

10. The separation membrane for olefin separation according to claim 1 ,
wherein the transition metal is crosslinked with aminated polymer, sulfonated polymer or mixtures thereof in an ionic state.

11. A composite membrane for olefin separation comprising:
aminated polymer, sulfonated polymer or mixtures thereof;
transition metal;
electron acceptors; and
porous support.

12. The composite membrane for olefin separation according to claim 11 ,
wherein the porous support is selected from the group consisting of the porous supports, metal porous supports, and ceramic porous supports made of polysulfone, polyvinylidene fluoride, polyamide imide, polyether imide, or polyester.

Assignees

• Korea Res Inst Chemical Tech

Inventors

• Kim Jeong Hoon
• Moon Su Young
• Chang Bong Jun

Classifications

• B01D53/228 Primary

  characterised by specific membranes · CPC title

• B01D67/0088

  Physical treatment with compounds, e.g. swelling, coating or impregnation · CPC title

• C07C7/144

  using membranes, e.g. selective permeation · CPC title

• B01D69/148 Primary

  Organic/inorganic mixed matrix membranes · CPC title

• B01D71/12

  Cellulose derivatives · CPC title