Highly stable Ni-M F6-NH2O/onpyrazine2(solvent)x metal organic frameworks and methods of use

Patent metadata

Field	Value
Publication number	US-11344870-B2
Application number	US-202017078618-A
Country	US
Kind code	B2
Filing date	Oct 23, 2020
Priority date	Apr 7, 2015
Publication date	May 31, 2022
Grant date	May 31, 2022

Abstract

Provided herein are metal organic frameworks comprising metal nodes and N-donor organic ligands. Methods for capturing chemical species from fluid compositions comprise contacting a metal organic framework characterized by the formula [MaMbF6-n(O/H2O)w(Ligand)x(solvent)y]z with a fluid composition and capturing one or more chemical species from the fluid composition.

First claim

What is claimed is:

1. A method of capturing chemical species from a fluid composition, the method comprising:
contacting a metal organic framework with a fluid composition including one or more chemical species, wherein the chemical species include one or more of CO 2 , H 2 S, one or more olefin species, and one or more paraffin species; and
capturing at least one chemical species from the fluid composition;
wherein the metal organic framework comprises: a pillar of the formula (M b F 5 (O/H 2 O)), where M b is selected from periodic groups IIIA, IIIB, IVB, VB, VIB, and VIII; and a square grid of the formula (M a (ligand) x ), where M a is selected from periodic groups IB, IIA, IIB, IIIA, IVA, IVB, VIB, VIIB, and VIII, ligand is a polyfunctional organic ligand, and x is 1 or more; wherein the pillar associates with the square grid to form the metal organic framework.

2. The method of claim 1 , wherein the fluid composition is an industrial gas stream including CO 2 .

3. The method of claim 2 , wherein the captured chemical species includes CO 2 .

4. The method of claim 2 , wherein the industrial gas stream is selected from flue gas, syngas, biogas, landfill gas, and combinations thereof.

5. The method of claim 2 , wherein the industrial gas stream has an initial concentration of CO 2 in the range of about 1% to about 50%.

6. The method of claim 2 , wherein the industrial gas stream contains water.

7. The method of claim 1 , wherein the fluid composition is an industrial gas stream including H 2 S.

8. The method of claim 7 , wherein the captured chemical species includes H 2 S.

9. The method of claim 7 , wherein the industrial gas stream is selected from biogas, refinery off gases, olefins, and combinations thereof.

10. The method of claim 7 , wherein the industrial gas stream includes one or more of benzene, toluene, xylene, ethylbenzene, naphthalene, and styrene.

11. The method of claim 7 , wherein the industrial gas stream includes one or more of propane, propene, ethane, and ethylene.

12. The method of claim 1 , wherein the fluid composition includes a mixture of the one or more olefin species and the one or more paraffin species.

13. The method of claim 12 , wherein the captured chemical species includes at least one olefin species.

14. The method of claim 12 , wherein the olefin species are selected from ethylene, propylene, and combinations thereof.

15. The method of claim 12 , wherein the paraffin species are selected from ethane, propane, and combinations thereof.

16. The method of claim 12 , wherein the olefin species include at least ethylene and the paraffin species include at least ethane.

17. The method of claim 12 , wherein the olefin species include at least propylene and the paraffin species include at least propane.

18. The method of claim 1 , wherein the fluid composition includes H 2 S and one or more hydrocarbon species.

19. The method of claim 18 , wherein the captured chemical species includes H 2 S.

20. The method of claim 18 , wherein the hydrocarbon species include one or more of propane, propene, ethane, and ethene.

Assignees

• Univ King Abdullah Sci & Tech

Inventors

• Eddaoudi Mohamed
• Adil Karim
• Belmabkhout Youssef
• Cadiau Amandine

Classifications

• B01D53/02 Primary

  by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)} · CPC title

• Y02C20/40

  of CO2 · CPC title

• B01D2253/204

  Metal organic frameworks (MOF's) · CPC title

• B01D2257/304

  Hydrogen sulfide · CPC title

• B01D2257/702

  Hydrocarbons · CPC title