Gaseous storage system, methods for making and using the same

Patent metadata

Field	Value
Publication number	US-10828620-B2
Application number	US-201615205543-A
Country	US
Kind code	B2
Filing date	Jul 8, 2016
Priority date	Jul 9, 2015
Publication date	Nov 10, 2020
Grant date	Nov 10, 2020

Abstract

The present description relates to an adsorbent monolith, method to make the adsorbent monolith, and a gaseous storage system that includes an adsorbent monolith according to the present disclosure. In particular, the adsorbent monolith includes adsorbent, a binder, and a scaffold material.

First claim

What is claimed is:

1. A porous gas sorbent monolith, comprising an admixture of:
activated carbon adsorbent in an amount of from about 85 wt % to about 95 wt %, and having for pores of less than 25 Å a pore volume of about 0.3 cc/g or greater;
a polymer binder selected from the group consisting of a methylcellulose, an alginate, a fluoropolymer, and a combinations thereof, in an amount of from about 5 wt % to about 13 wt %; and
a polymer fiber scaffold material selected from the group consisting of a polyester fiber, polylactic acid fiber, a nylon fiber and a combination thereof, in an amount of from about 1 wt % to about 2 wt %,
wherein the porous gas sorbent monolith has a side of at least about 88.9 mm and a height of from about 19.05 mm to about 254 mm, and upon drying at a temperature of from 110° C. to about 180° C. the polymer binder and polymer fiber scaffold material retain their original structure, and wherein the porous gas sorbent monolith has a natural gas activity (NG Act) of from 11.3 to 15.1 g/100 g and a toughness of greater than 17 kN/m 2 .

2. The monolith of claim 1 , wherein the polymer fiber scaffold material includes a nylon fiber.

3. The monolith of claim 1 , wherein the polymer fiber scaffold material includes a polyester fiber.

4. The monolith of claim 1 , wherein the monolith drying temperature is from about 110° C. to about 150° C.

5. The monolith of claim 4 , wherein the drying temperature is about 165° C.

6. The monolith of claim 1 , wherein the polymer fiber scaffold material has a glass transition temperature (T g ) in a range of about 200° C. to about 270° C.

7. The monolith of claim 6 , wherein the T g of the polymer fiber scaffold material is 250° C.

8. The monolith of claim 1 , wherein the polymer binder is at least one of carboxymethylcellulose, hydroxypropylmethylcellulose, sodium alginate, polytetrafluoroethylene or a combination thereof.

9. A gaseous hydrocarbon storage system comprising:
a container; and
a porous gas sorbent monolith of claim 1 .

10. The gaseous hydrocarbon storage system of claim 9 , wherein the container is configured to withstand at least 1,000 psi.

Assignees

• Ingevity South Carolina Llc

Inventors

• Holbrook Billy-Paul M
• Mims Robert W
• Homan Jeffrey J
• Thomson Cameron I

Classifications

• B01J20/28066

  being more than 1000 m2/g · CPC title

• B01J20/28011

  Other properties, e.g. density, crush strength · CPC title

• B01J20/20

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

• B01D2253/102

  Carbon · CPC title

• B01D53/02 Primary

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