国家/地区 中国（6） 美国（4） 韩国（3） 世界知识产权组织（3）
IPC部 B（10）
IPC大类 B01（10） C02（3） C08（3）
A61（2） B32（2） E21（2）
IPC小类 B01D（10）
IPC B01D039/14（10）
发明人 JAMISON D E（2） LIU S（2） PEARL W C（2）
SHUMWAY W W（2）
公开年 2021（6） 2020（3）
申请年 2020（10）
专利权人 HALLIBURTON .（2）

Photocatalytic filter for removing contaminants, specifically VOCs, particularly aromatic components such as toluene in gaseous medium, such as indoor air, has porous first photocatalyst layer that is coated on nanorod array.

PARK J W, HASSAN A

System used for treatment of slop water recovered from wellbore operation, comprises treatment unit comprising inlet, filtration medium comprising particulate pack partially coated with zwitterionic polyelectrolyte, and arranged to separate portions of slop water stream comprising water, and outlet.

JAMISON D E, SHUMWAY W W, PEARL W C

Fluid treatment system for treating fracturing fluid or drilling mud, has first filtration medium having first outlet that is provided on first side of first filtration medium, and second outlet that is provided on second side of first filtration medium to opposite first side.

JAMISON D E, SHUMWAY W W, PEARL W C

Polytetrafluoroethylene composite filter material useful for air purification by filtering bacteria and virus aerosol, comprises supporting layer and polytetrafluoroethylene microporous film layer.

XIAO P, XIAO Z, CAI C, TANG Y, LI H, SU J, XIAOPING, WEIGHT X, TSAI C, AN X J

Filter using graphene and polymer, has tri-layer that is formed by laminating polymer in which graphene is dispersed and oxidized or reduced graphene is cross-repeated n times on coated polymer.

HOON S, SON Y H, LEE S

Visible light photocatalytic glass fiber filter core for air purification, comprises nano-scale particles, silver nanowires, adhesive system and superfine glass fiber cotton.

ZENG H, ZHAI F, LI L, CHENG J, LUO Y, FENG G, HU M

Degradable antibacterial nanofiber non-woven fabric composite filter material comprises first layer facing wind direction as nanofiber filter layer, second layer as nanomaterial antibacterial layer, and third layer as substrate layer.

CAI Y, QI H, ZHU L, CHEN L, YE W

Graphene composite filter screen useful in e.g. air purification, comprises polyether polyol, toluene diisocyanate, graphene material, activated carbon powder, catalyst, foam stabilizer, surfactant and additive.

WANG Y, WANG C, LIU S

Filter material comprises matrix material and graphene reactive polyurethane hot melt adhesive distributed with three-dimensional network structure formed by interweaving graphene oxide.

ZHOU L

Graphene scale antibacterial composite fiber filter core comprises outer fibrous layer made of graphene composite fibers and inner scale inhibitor core made of scale-proof material.

WANG Q, LIU S