# US 11,305,226 B2 · Composite 3D-printed reactors for gas absorption, purification, and reaction

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- Number: US 11,305,226 B2
- Document ID: US11305226B2
- Status: Granted
- Kind: B2
- Application number: 16/384,520
- Filed: 2019-04-15
- Published: 2019-08-08
- Granted: 2022-04-19
- Earliest claimed: 2017-03-24
- Assignees: Lawrence Livermore National Security, LLC
- Applicants: Lawrence Livermore National Security, LLC
- Inventors: Du T. Nguyen; Sarah E. Baker; William L. Bourcier; Joshuah K. Stolaroff; Congwang Ye; Maxwell R. Murialdo; Maira R. Cerón Hernández; Jennifer M. Knipe
- Web page: https://patentgrep.com/patent/US11305226B2

## CPC

- B01D 53/04: with stationary adsorbents {(B01D53/025 takes precedence)}
- B01D 53/1493: {Selection of liquid materials for use as absorbents}
- B01J 20/28019: {Spherical, ellipsoidal or cylindrical}
- B01J 20/28023: {Fibres or filaments (fibres or filaments in the form of membranes B01J20/28038; B01J20/28007 takes precedence)}
- B01J 20/28026: {Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin}
- B33Y 10/00: Processes of additive manufacturing
- B33Y 70/00: Materials specially adapted for additive manufacturing
- B33Y 80/00: Products made by additive manufacturing
- B01D 2253/25: Coated, impregnated or composite adsorbents
- B01D 2257/504: Carbon dioxide
- B29C 64/118: using filamentary material being melted, e.g. fused deposition modelling [FDM]
- B29K 2995/0065: Permeability to gases
- Y02C 20/40: of CO2
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- Y02C: CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]

## Abstract

A composite material for gas capture including CO2 capture and capture of other gases. The composite material includes solid or liquid reactive material, filler material, and a gas-permeable polymer coating such that the reactive material forms micron-scale domains in the filler material.

## Claims

### Claim 1

A method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases, comprising the steps of:
providing a filler material,
providing a sorbent material,
extruding said filler material and said sorbent material to produce an extrudant, and
providing a gas-permeable polymer coating layer around said extrudant to produce the reactor.

### Claim 2 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 wherein said sorbent material includes units of sorbent material and wherein said units of sorbent material are units of carbon dioxide stripping material.

### Claim 3 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 wherein said sorbent material includes units of sorbent material and wherein said units of sorbent material are units of stripping material for stripping other gasses than carbon dioxide.

### Claim 4 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 wherein said sorbent material includes units of sorbent material and wherein said units of sorbent material are liquid units of carbon dioxide stripping material.

### Claim 5 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 wherein said sorbent material includes units of sorbent material and wherein said units of sorbent material are liquid droplets of carbon dioxide stripping material encapsulated in capsules.

### Claim 6 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 wherein said sorbent material includes units of sorbent material and wherein said units of sorbent material are solid units of carbon dioxide stripping material.

### Claim 7 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 wherein said sorbent material includes units of sorbent material and wherein said units of sorbent material are solid droplets of carbon dioxide stripping material encapsulated in capsules.

### Claim 8 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 wherein said sorbent material includes units of sorbent material and further comprising the step of forming said extrudant into a flat sheet of said extrudant with said filler in said extrudant, with said units of sorbent material in said extrudant with said filler; and with said gas-permeable polymer coating layer around said extrudant.

### Claim 9 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 wherein said sorbent material includes units of sorbent material and further comprising the step of forming said extrudant into a rolled sheet of said extrudant with said filler in said extrudant, with said units of sorbent material in said extrudant with said filler; and with said gas-permeable polymer coating layer around said extrudant.

### Claim 10 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 further comprising the step of forming said extrudant into an entangled mass of filaments.

### Claim 11 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 further comprising the step of forming said extrudant into a layered mass of filaments.

### Claim 12 (depends on 1)

The method of making a reactor for removing a single gas or multiple gases from a gas stream containing the single gas or the multiple gases of claim 1 further comprising the step of forming said extrudant into a woven mass of filaments.