# US 10,118,130 B2 · Two-dimensional membrane structures having flow passages

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- Number: US 10,118,130 B2
- Document ID: US10118130B2
- Status: Granted
- Kind: B2
- Application number: 15/099,420
- Filed: 2016-04-14
- Published: 2017-10-19
- Granted: 2018-11-06
- Earliest claimed: 2016-04-14
- Assignees: Lockheed Martin Corporation
- Applicants: Lockheed Martin Corporation
- Inventors: Jacob Louis Swett
- Web page: https://patentgrep.com/patent/US10118130B2

## CPC

- B01D 63/087: {Single membrane modules}
- B01D 63/081: {Manufacturing thereof}
- B01D 69/02: characterised by their properties
- B01D 69/1071: {Woven, non-woven or net mesh}
- B01D 69/108: {Inorganic support material}
- B01D 69/12: Composite membranes; Ultra-thin membranes
- B01D 69/1213: {Laminated layers}
- B01D 71/0211: {Graphene or derivates thereof}
- B01D 71/0212: {Carbon nanotubes}
- G01N 33/52: Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper {and including single- and multilayer analytical elements (immunological elements G01N33/54386; involving labelled immunochemicals G01N33/58; for haemoglobin or occult blood G01N33/72)}
- B01D 2313/08: Flow guidance means within the module or the apparatus
- B01D 2323/39: Electrospinning
- B01D 2325/0212: Symmetric or isoporous membranes
- 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)
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

A two-dimensional membrane layered structure may include a support substrate layer having a plurality of substrate passages configured to allow fluid to flow therethrough, a two-dimensional membrane layer disposed on an upper surface of the support substrate layer, and a plurality of flow passages disposed between the support substrate layer and the two-dimensional membrane layer. The two-dimensional membrane layer may have a plurality of pores configured to allow fluid to flow therethrough. The plurality of pores may comprise a first portion of pores that overlap with the plurality of substrate passages and a second portion of pores that do not overlap with the plurality of substrate passages. The plurality of flow passages may be configured to allow fluid to flow through the second portion of pores to the plurality of substrate passages.

## Claims

### Claim 1

A two-dimensional membrane layered structure comprising:
a support substrate layer having a plurality of substrate passages configured to allow fluid to flow therethrough;
a two-dimensional membrane layer disposed on an upper surface of the support substrate layer, the two-dimensional membrane layer having a plurality of pores configured to allow fluid to flow therethrough, the plurality of pores comprising a first portion of pores that overlap with the plurality of substrate passages and a second portion of pores that do not overlap with the plurality of substrate passages; and
a plurality of flow passages disposed between the support substrate layer and the two-dimensional membrane layer, the plurality of flow passages being configured to allow fluid to flow through the second portion of pores to the plurality of substrate passages.

### Claim 2 (depends on 1)

The two-dimensional membrane layered structure of claim 1, further comprising a plurality of interlayer supports disposed on an upper surface of the support substrate layer, wherein the plurality of interlayer supports form the plurality of flow passages.

### Claim 3 (depends on 1)

The two-dimensional membrane layered structure of claim 1, further comprising a plurality of grooves formed on an upper surface of the support substrate layer, wherein the plurality of grooves form the plurality of flow passages.

### Claim 4 (depends on 1)

The two-dimensional membrane layered structure of claim 1, further comprising a plurality of interlayer supports disposed on an upper surface of the support substrate layer and a plurality of grooves formed on an upper surface of the support substrate layer, wherein the plurality of interlayer supports and the plurality of grooves form the plurality of flow passages.

### Claim 5

A two-dimensional membrane layered structure comprising:
a support substrate layer having a plurality of substrate passages configured to allow fluid to flow therethrough;
a two-dimensional membrane layer disposed on an upper surface of the support substrate layer, the two-dimensional membrane layer having a plurality of pores configured to allow fluid to flow therethrough, and the plurality of pores comprising a first portion of pores that overlap with the plurality of substrate passages and a second portion of pores that do not overlap with the plurality of substrate passages; and
a plurality of interlayer supports disposed on the upper surface of the support substrate layer,
wherein the plurality of interlayer supports is configured to form a plurality of flow passages that allow fluid to flow through the second portion of pores to the plurality of substrate passages.

### Claim 6 (depends on 5)

The two-dimensional membrane layered structure of claim 5, wherein the plurality of interlayer supports comprises carbon nanotubes.

### Claim 7 (depends on 5)

The two-dimensional membrane layered structure of claim 5, wherein the plurality of interlayer supports comprises electrospun fibers.

### Claim 8 (depends on 5)

The two-dimensional membrane layered structure of claim 5, wherein the plurality of interlayer supports is disposed on an area of the upper surface of the support substrate layer ranging from about 5% to about 50% of the total area of the upper surface of the support substrate layer.

### Claim 9 (depends on 5)

The two-dimensional membrane layered structure of claim 5, wherein the plurality of interlayer supports is functionalized.

### Claim 10 (depends on 5)

The two-dimensional membrane layered structure of claim 5, wherein the plurality of interlayer supports is disposed on an area of the upper surface of the support substrate layer ranging from about 40% to about 45% of the total area of the upper surface of the support substrate layer.

### Claim 11

A two-dimensional membrane layered structure comprising:
a support substrate layer having a plurality of substrate passages configured to allow fluid to flow therethrough;
a two-dimensional membrane layer disposed on an upper surface of the support substrate layer, the two-dimensional membrane layer having a plurality of pores configured to allow fluid to flow therethrough, and the plurality of pores comprising a first portion of pores that overlap with the plurality of substrate passages and a second portion of pores that do not overlap with the plurality of substrate passages; and
a plurality of grooves formed on the upper surface of the support substrate layer,
wherein the plurality of grooves is configured to form a plurality of flow channels that allow permeate to flow through the second portion of pores to the plurality of substrate channels.

### Claim 12 (depends on 11)

The two-dimensional membrane layered structure of claim 11, wherein the plurality of grooves is formed on the upper surface of the support substrate layer in a lattice pattern.

### Claim 13 (depends on 11)

The two-dimensional membrane layered structure of claim 11, wherein the plurality of grooves comprises a width of about 10 nanometers to about 1000 nanometers.

### Claim 14 (depends on 11)

The two-dimensional membrane layered structure of claim 11, wherein the plurality of grooves is functionalized.

### Claim 15

A two-dimensional membrane layered structure comprising:
a support substrate layer having a plurality of substrate passages configured to allow fluid to flow therethrough;
a two-dimensional membrane layer disposed on an upper surface of the support substrate layer, the two-dimensional membrane layer having a plurality of pores configured to allow fluid to flow therethrough, the plurality of pores comprising a first portion of pores that overlap with the plurality of substrate passages and a second portion of pores that do not overlap with the plurality of substrate passages; and
a flow passage means for allowing fluid to flow through the second portion of pores to the plurality of substrate passages to increase overall pore utilization of the two-dimensional membrane layer.
