US 11,779,885 B2
Super-hydrophobic nano-porous/micro-porous composite membranes for membrane distillation operating at low inlet feed temperatures with low energy consumption
Mohammed Rasool Qtaishat, Amman (JO); Takeshi Matsuura, Ottawa (CA); Areej Alsamhouri, Thuwal (SA); Noreddine Ghaffour, Thuwal (SA); and Junggil Lee, Thuwal (SA)
Assigned to SAUDI MEMBRANE DISTILLATION DESALINATION CO LTD., Thuwal (SA)
Appl. No. 16/955,330
Filed by SAUDI MEMBRANE DISTILLATION DESALINATION CO LTD., Thuwal (SA); Mohammed Rasool Qtaishat, Amman (JO); and Takeshi Matsuura, Ottawa (CA)
PCT Filed Dec. 18, 2018, PCT No. PCT/CA2018/051616
§ 371(c)(1), (2) Date Jun. 18, 2020,
PCT Pub. No. WO2019/119125, PCT Pub. Date Jun. 27, 2019.
Claims priority of provisional application 62/599,950, filed on Dec. 18, 2017.
Prior Publication US 2021/0001274 A1, Jan. 7, 2021
Int. Cl. B01D 61/36 (2006.01); B01D 3/10 (2006.01); B01D 3/34 (2006.01); B01D 69/12 (2006.01); C02F 1/44 (2023.01); B01D 3/14 (2006.01); B01D 69/02 (2006.01)
CPC B01D 61/364 (2013.01) [B01D 3/10 (2013.01); B01D 3/145 (2013.01); B01D 3/346 (2013.01); B01D 69/02 (2013.01); B01D 69/12 (2013.01); C02F 1/447 (2013.01); B01D 2325/02 (2013.01); B01D 2325/04 (2013.01); B01D 2325/38 (2013.01)] 24 Claims
 
1. A composite membrane for use in membrane distillation processes and related applications, the composite membrane comprising:
a nano-porous super-hydrophobic active layer; and
a micro-porous hydrophobic support layer,
wherein the nano-porous super-hydrophobic active layer is provided on the micro-porous hydrophobic support layer.