国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC B01J027/24（3）
发明人
公开年 2023（2）
申请年 2022（3）
专利权人

Producing urea for vehicles involves passing ammonia and carbon dioxide into synthesis tower, adding graphene-supported nitrogen atom catalyst, controlling temperature and pressure, reacting, depressurizing, cooling, separating gas and liquid, concentrating liquid, spray drying and granulating.

DU F, WANG Q, MO Z, WANG D, LUO X, FU L

Nitrogen-doped graphene three-dimensional macroscopic catalyst comprises nitrogen source and carbon source.

TANG Y, JIN H, PU M, XU B, BEI K, JIN Z, ZHENG X, ZHAO M, AN N, LIU R

Asymmetric multifunction heterogeneous composite film useful for treating wastewater treatment, comprises a catalytic degradable film layer comprising carbon quantum dots, iron-based quantum dot and two-dimensional sheet-shaped quantum dot carrier, and a functional adsorption layer.

WANG G, ZENG Z, ZHU L, SONG H