Method for enhancing volumetric capacity in gas storage and release systems

Patent metadata

Field	Value
Publication number	US-2018001296-A1
Application number	US-201715640037-A
Country	US
Kind code	A1
Filing date	Jun 30, 2017
Priority date	Jul 1, 2016
Publication date	Jan 4, 2018
Grant date	—

Abstract

The present disclosure provides for a porous gas sorbent monolith with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent monolith of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent monolith includes a gas adsorbing material and a non-aqueous binder.

First claim

What is claimed is:

1 . A method of storing a gas, the method comprising:
contacting the gas with a gaseous storage system comprising at least one porous gas sorbent monolith having a working gravimetric capacity of ≦40 lbs/GGE and/or a volumetric capacity of ≦35 L/GGE.

2 . The method of claim 1 , wherein the porous gas sorbent monolith has at least one of:
< about 100 cc/L-M volume in pores smaller than about 9 Å size; > about 200 cc/L-M volume in pores about 9-27 Å size; > about 50 cc/L-M volume in pores about 27-490 Å size; a part density of at least 0.4 g/cc; or a combination thereof.

3 . The method of claim 1 , wherein the working gravimetric capacity is 40 lbs/GGE.

4 . The method of claim 1 , wherein the volumetric capacity is equal to or less than 30 L/GGE.

5 . The method of claim 1 , wherein the porous gas sorbent monolith comprises a gas adsorbing material and a non-aqueous binder.

6 . The method of claim 5 , wherein the non-aqueous binder is at least one of a fluoropolymer, a polyamide, a polyimide, fibrillated cellulose, a high-performance plastic, a copolymer with a fluoropolymer, a copolymer with a polyamide, a copolymer with a polyimide, a copolymer with a high-performance plastic, or a combination thereof.

7 . The method of claim 6 , wherein the fluoropolymer is at least one of poly(vinylidene difluoride), polytetrafluoroethylene, fluorinated ethylene propylene, perfluoroalkoxy alkane, or a combination thereof.

8 . The method of claim 6 , wherein the polyamide is at least one of Nylon-6,6′, Nylon-6, Nylon 6, 12, or a combination thereof.

9 . The method of claim 5 , wherein at least one of:
the binder is present in an amount of no greater than 10 wt %; the gas adsorbing material is present in an amount of at least 90 wt %; the non-aqueous binder is a dispersion of about 50 wt % to about 70 wt % of the binder; or a combination thereof.

10 . The method of claim 5 , wherein at least one of:
the non-aqueous binder is present in an amount of about 2.5 wt % to about 7 wt % the gas adsorbing material is present in an amount of at least 93 wt %; the non-aqueous binder is a dispersion of about 55 wt % to about 65 wt % of the binder; or a combination thereof.

11 . The method of claim 5 , wherein the gas adsorbing material is at least one of activated carbon, zeolite, silica, metal organic framework, covalent organic framework, or a combination thereof.

12 . The method of claim 11 , wherein the activated carbon is derived from wood, peat moss, coconut shell, coal, walnut shell, synthetic polymers, and/or natural polymers.

13 . The method of claim 11 , wherein the activated carbon is thermally activated, chemically activated, or a combination thereof.

14 . A porous gas sorbent monolith, comprising:
a gas adsorbing material, wherein the porous gas sorbent monolith has a working gravimetric capacity of 40 lbs/GGE and/or a volumetric capacity of <35 L/GGE.

15 . The monolith of claim 14 , further comprising a non-aqueous binder.

16 . The monolith of claim 15 , wherein the non-aqueous binder is at least one of a fluoropolymer, a polyamide, a polyimide, fibrillated cellulose, a high-performance plastic, a copolymer with a fluoropolymer, a copolymer with a polyamide, a copolymer with a polyimide, a copolymer with a high-performance plastic, or a combination thereof.

17 . The monolith of claim 16 , wherein the fluoropolymer is at least one fluoropolymer selected from the group consisting of poly(vinylidene difluoride), fluorinated ethylene propylene, perfluoroalkoxy alkane, and polytetrafluoroethylene.

18 . The monolith of claim 16 , wherein the polyamide is at least one polyamide selected from the group consisting of Nylon-6,6′, Nylon-6, and Nylon 6, 12.

19 . The article of claim 14 , wherein the non-aqueous binder is present in an amount of no greater than 10 wt %.

20 . The monolith of claim 14 , wherein the gas adsorbing material is present in an amount of at least 90 wt %.

21 . The monolith of claim 14 , wherein the gas adsorbing material is at least one of activated carbon, zeolite, silica, metal organic framework, covalent organic framework, or a combination thereof.

22 . The monolith of claim 21 , wherein the activated carbon is derived from wood, peat moss, coconut shell, coal, walnut shell, synthetic polymers and/or natural polymers.

23 . The monolith of claim 21 , wherein the activated carbon is thermally activated, chemically activated, or a combination thereof.

24 . The monolith of claim 14 , wherein the monolith has at least one of the following:
< about 100 cc/L-M volume in pores smaller than about 9 Å size; > about 200 cc/L-M volume in pores about 9-27 Å size; > about 50 cc/L-M volume in pores about 27-490 Å size; a part density of ≧0.4 g/cc; the working gravimetric capacity is ≦30 lbs/GGE; the volumetric capacity is less than 30 L/GGE; the gas adsorbing material is present in an amount of at least 93 wt %; the non-aqueous binder is present in an amount of about 2.5 wt % to about 7 wt %; the non-aqueous binder is a dispersion of about 50 wt % to about 70 wt % of the binder; or a combination thereof.

25 . The monolith of claim 24 , wherein the part density is in a range of about 0.4 g/cc to about 0.75 g/cc.

26 . The monolith of claim 14 , wherein the part density is in a range of about 0.4 g/cc to about 0.6 g/cc.

27 . The monolith of claim 14 , wherein the working gravimetric capacity is <28 lbs/GGE.

28 . A method of making a porous gas sorbent monolith, the method comprising:
admixing a gas adsorbing material and a non-aqueous binder; and compressing the mixture into a shaped structure or extruding the mixture in a shape.

29 . The method of claim 28 , further comprising applying heat to the compressed mixture.

30 . The method of claim 28 , wherein the monolith has at least one of the following:
the non-aqueous binder is at least one of a fluoropolymer, a polyamide, a polyimide, fibrillated cellulose, a high-performance plastic, a copolymer with a fluoropolymer, a copolymer with a polyamide, a copolymer with a polyimide, a copolymer with a high-performance plastic, or a combination thereof; or the gas adsorbing material is at least one of activated carbon, a zeolite, a silica, a metal organic framework, covalent organic framework, or a combination thereof; or a combination thereof.

31 . The method of claim 28 , wherein the monolith has at least one of the following:
< about 100 cc/L-M volume in pores smaller than about 9 Å size; > about 200 cc/L-M volume in pores about 9-27 Å size; > about 50 cc/L-M volume in pores about 27-490 Å size; a part density of ≧0.4 g/cc; a working gravimetric capacity of ≦40 lbs/GGE; a volumetric capacity of <35 L/GGE; the gas adsorbing material is present in an amount of at least 90 wt %; the non-aqueous binder is present in an amount no greater than 10 wt %; or a combination thereof.

32 . The method of claim 28 , wherein the monolith has at least one of the following:
a part density in a range of about 0.4 g/cc to about 0.75 g/cc; a working gravimetric capacity is less than 30 lbs/GGE; a volumetric capacity is less than 30 L/GGE; a gas adsorbing material is present in an amount of at least 93 wt %; the

Assignees

• Ingevity South Carolina Llc

Inventors

• Holbrook Billy-Paul M
• Hiltzik Laurence H
• Mims Robert W
• Bongalonta Rey P
• Onubogu Kenechukwu

Classifications

• B01J20/103

  comprising silica · CPC title

• B01J20/226

  Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F) · CPC title

• B01J20/18

  Synthetic zeolitic molecular sieves · CPC title

• B01J20/2803

  Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products · CPC title

• B01J20/20 Primary

  comprising free carbon; comprising carbon obtained by carbonising processes · CPC title