公开(公告)号：US11511227B2

公开(公告)日：2022-11-29

申请号：US16236365

申请日：2018-12-29

Applicant: TIANJIN UNIVERSITY

Inventor： Hui Ding ,  Jiahao Cui ,  Jianbo Quan ,  Dan Zhao ,  Rui Liu ,  Guanyi Chen

IPC: B01D53/86 ,  B01J23/10 ,  B01J23/44 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08

Abstract: A method for enhancing degradation of ester volatile organic compounds with a cerium oxide supported palladium single atom catalyst under low-temperature microwave comprises the steps of firstly preparing a single atom catalyst Pd/CeO2, adding the catalyst Pd/CeO2 into a reaction cavity, initiating microwave radiation to enhance the catalysis reaction, and quickly introducing an ester compound with a concentration of 50˜5000 mg/m3 and a space velocity of 2000˜100000 h−1 into the reaction cavity from a vapor phase sampling port to react when the reaction temperature is 10˜80° C. A catalyst packed column is provided in the reaction cavity, the vapor phase sampling port is defined at the bottom of the reaction cavity, and an exhaust port is defined at the top of the cavity. The microwave method can enhance and activate active sites, prevent the aging of active sites, and enable the chemical reaction rate to be increased by more than 17.9%.

公开(公告)号：US11839869B2

公开(公告)日：2023-12-12

申请号：US17699375

申请日：2022-03-21

Applicant: TIANJIN UNIVERSITY

Inventor： Hui Ding ,  Dan Zhao ,  Rui Liu

IPC: B01J23/755 ,  B01J21/18 ,  B01J35/04 ,  B01J37/02 ,  B01J37/04 ,  B01J37/08 ,  B01J37/34

CPC classification number: B01J23/755 ,  B01J21/18 ,  B01J35/04 ,  B01J37/0201 ,  B01J37/04 ,  B01J37/082 ,  B01J37/343

Abstract: The present disclosure discloses a method of preparing a Ni active site-loaded C—Si aerogel catalyst, and a product and use thereof, belonging to the technical field of catalyst preparation. The method includes the following steps: (1) dissolving absolute ethanol, trimethoxymethylsilane, cetyltrimethylammonium bromide and HCl in deionized water, conducting hydrolysis to obtain a hydrolyzate, followed by adjusting a pH value of the hydrolyzate to 7 to 8.5, and drying to obtain a C—Si aerogel; and (2) in the absolute ethanol, mixing NiCl2.6H2O with the C—Si aerogel obtained in step (1) uniformly, and conducting ultrasonication, impregnation and drying, followed by calcination to obtain the Ni active site-loaded C—Si aerogel catalyst. In the present disclosure, the prepared Ni active site-loaded C—Si aerogel catalyst is capable of conducting catalytic degradation of aromatic volatile organic compounds (VOCs) at room temperature.

公开(公告)号：US20240391844A1

公开(公告)日：2024-11-28

申请号：US18674372

申请日：2024-05-24

Applicant: Tianjin Yufeng Technology Co., Ltd. ,  Tianjin University

Inventor： Hui Ding ,  Xiangci Wu ,  Chenglong Dai ,  Dan Zhao

IPC: C05F17/20 ,  C05F3/00 ,  C05F5/00 ,  C05F17/40 ,  C05F17/50 ,  C05G5/20

Abstract: The application provides a preparation method and use of a diatom-bacterium symbiotic organic liquid fertilizer, and belongs to the technical field of biological fertilizers. The preparation method of the diatom-bacterium symbiotic organic liquid fertilizer includes the following steps: (1) mixing a compound bacterial powder with a waste liquid organic matter to allow first fermentation to obtain a small-molecule organic liquid fertilizer; (2) mixing diatom with the small-molecule organic liquid fertilizer to allow second fermentation to obtain a bio-organic fertilizer; and (3) mixing a microbial inoculant with the bio-organic fertilizer to allow third fermentation to obtain the diatom-bacterium symbiotic organic liquid fertilizer. In the application, the diatom-bacterium symbiotic organic liquid fertilizer prepared by the preparation method is used for soil improvement. The organic liquid fertilizer can not only effectively improve soil, enhance fertilizer utilization, and increase crop yield and quality, but also can achieve resource utilization of waste.