Patent
US 10,722,849meta-phenylenediamine (MPD)
GO-MPD membrane
polymer material
polyvinyl alcohol (PVA)
porous support (polymer or hollow fibers)
| ≤ 30 |
| — |
closing threshold pressure range | 10–15 | — |
graphene-based layer thickness range | 10–100 | graphene oxide |
graphene-based layer thickness range (narrower) | 10–20 | graphene oxide |
Thickness | 10–100 nm | — |
Duration | 900–7200 s | — |
Temperature | 50–120 °C | — |
Duration | 1800–43200 s | — |
Duration | 1–6 hours | — |
Pressure | 10–15 psi | — |
Pressure | 10–100 psi | — |
Pressure | 10–20 psi | — |
Pressure | 20–30 psi | — |
Pressure | 30–40 psi | — |
Thickness | 10–15 nm | — |
Thickness | 15–20 nm | — |
Pressure | 10–50 psi | — |
Pressure | 20–25 psi | — |
Pressure | 40–50 psi | — |
Pressure | 10–30 psi | — |
Thickness | 10–50 nm | — |
Thickness | 50–100 nm | — |
Thickness | 20–50 nm | — |
Thickness | 10–30 nm | — |
Thickness | 100–500 nm | — |
Thickness | 100–200 nm | — |
Thickness | 200–500 nm | — |
Temperature | 40–90 °C | — |
Temperature | 40–50 °C | — |
Temperature | 50–60 °C | — |
Temperature | 60–70 °C | — |
Temperature | 70–90 °C | — |
Temperature | 50–100 °C | — |
Temperature | 100–120 °C | — |
Duration | 30–60 minutes | — |
Duration | 1–2 hours | — |
Pressure | ≤ 1e-30 psi | — |
Pressure | ≤ 30 psi | — |
Pressure | ≥ 50 psi | — |
Pressure | ≥ 55 psi | — |
meta-phenylenediamine (MPD)
GO-MPD membrane
polymer material
polyvinyl alcohol (PVA)
porous support (polymer or hollow fibers)
| ≤ 30 |
| — |
closing threshold pressure range | 10–15 | — |
graphene-based layer thickness range | 10–100 | graphene oxide |
graphene-based layer thickness range (narrower) | 10–20 | graphene oxide |
Thickness | 10–100 nm | — |
Duration | 900–7200 s | — |
Temperature | 50–120 °C | — |
Duration | 1800–43200 s | — |
Duration | 1–6 hours | — |
Pressure | 10–15 psi | — |
Pressure | 10–100 psi | — |
Pressure | 10–20 psi | — |
Pressure | 20–30 psi | — |
Pressure | 30–40 psi | — |
Thickness | 10–15 nm | — |
Thickness | 15–20 nm | — |
Pressure | 10–50 psi | — |
Pressure | 20–25 psi | — |
Pressure | 40–50 psi | — |
Pressure | 10–30 psi | — |
Thickness | 10–50 nm | — |
Thickness | 50–100 nm | — |
Thickness | 20–50 nm | — |
Thickness | 10–30 nm | — |
Thickness | 100–500 nm | — |
Thickness | 100–200 nm | — |
Thickness | 200–500 nm | — |
Temperature | 40–90 °C | — |
Temperature | 40–50 °C | — |
Temperature | 50–60 °C | — |
Temperature | 60–70 °C | — |
Temperature | 70–90 °C | — |
Temperature | 50–100 °C | — |
Temperature | 100–120 °C | — |
Duration | 30–60 minutes | — |
Duration | 1–2 hours | — |
Pressure | ≤ 1e-30 psi | — |
Pressure | ≤ 30 psi | — |
Pressure | ≥ 50 psi | — |
Pressure | ≥ 55 psi | — |
meta-phenylenediamine (MPD)
GO-MPD membrane
polymer material
polyvinyl alcohol (PVA)
porous support (polymer or hollow fibers)
| ≤ 30 |
| — |
closing threshold pressure range | 10–15 | — |
graphene-based layer thickness range | 10–100 | graphene oxide |
graphene-based layer thickness range (narrower) | 10–20 | graphene oxide |
Thickness | 10–100 nm | — |
Duration | 900–7200 s | — |
Temperature | 50–120 °C | — |
Duration | 1800–43200 s | — |
Duration | 1–6 hours | — |
Pressure | 10–15 psi | — |
Pressure | 10–100 psi | — |
Pressure | 10–20 psi | — |
Pressure | 20–30 psi | — |
Pressure | 30–40 psi | — |
Thickness | 10–15 nm | — |
Thickness | 15–20 nm | — |
Pressure | 10–50 psi | — |
Pressure | 20–25 psi | — |
Pressure | 40–50 psi | — |
Pressure | 10–30 psi | — |
Thickness | 10–50 nm | — |
Thickness | 50–100 nm | — |
Thickness | 20–50 nm | — |
Thickness | 10–30 nm | — |
Thickness | 100–500 nm | — |
Thickness | 100–200 nm | — |
Thickness | 200–500 nm | — |
Temperature | 40–90 °C | — |
Temperature | 40–50 °C | — |
Temperature | 50–60 °C | — |
Temperature | 60–70 °C | — |
Temperature | 70–90 °C | — |
Temperature | 50–100 °C | — |
Temperature | 100–120 °C | — |
Duration | 30–60 minutes | — |
Duration | 1–2 hours | — |
Pressure | ≤ 1e-30 psi | — |
Pressure | ≤ 30 psi | — |
Pressure | ≥ 50 psi | — |
Pressure | ≥ 55 psi | — |
meta-phenylenediamine (MPD)
GO-MPD membrane
polymer material
polyvinyl alcohol (PVA)
porous support (polymer or hollow fibers)
| ≤ 30 |
| — |
closing threshold pressure range | 10–15 | — |
graphene-based layer thickness range | 10–100 | graphene oxide |
graphene-based layer thickness range (narrower) | 10–20 | graphene oxide |
Thickness | 10–100 nm | — |
Duration | 900–7200 s | — |
Temperature | 50–120 °C | — |
Duration | 1800–43200 s | — |
Duration | 1–6 hours | — |
Pressure | 10–15 psi | — |
Pressure | 10–100 psi | — |
Pressure | 10–20 psi | — |
Pressure | 20–30 psi | — |
Pressure | 30–40 psi | — |
Thickness | 10–15 nm | — |
Thickness | 15–20 nm | — |
Pressure | 10–50 psi | — |
Pressure | 20–25 psi | — |
Pressure | 40–50 psi | — |
Pressure | 10–30 psi | — |
Thickness | 10–50 nm | — |
Thickness | 50–100 nm | — |
Thickness | 20–50 nm | — |
Thickness | 10–30 nm | — |
Thickness | 100–500 nm | — |
Thickness | 100–200 nm | — |
Thickness | 200–500 nm | — |
Temperature | 40–90 °C | — |
Temperature | 40–50 °C | — |
Temperature | 50–60 °C | — |
Temperature | 60–70 °C | — |
Temperature | 70–90 °C | — |
Temperature | 50–100 °C | — |
Temperature | 100–120 °C | — |
Duration | 30–60 minutes | — |
Duration | 1–2 hours | — |
Pressure | ≤ 1e-30 psi | — |
Pressure | ≤ 30 psi | — |
Pressure | ≥ 50 psi | — |
Pressure | ≥ 55 psi | — |