公开(公告)号：US20220143591A1

公开(公告)日：2022-05-12

申请号：US17594237

申请日：2020-05-20

Applicant: Johnson Matthey Public Limited Company

Inventor： Asgar Mohamed Hussein ALIBHAI ,  Helen Theresa GODDIN

IPC: B01J35/06 ,  B01J23/42 ,  C01B21/26 ,  B01J23/46

Abstract: A catalyst gauze for an ammonia oxidation process is described, containing a first layer of knitted first wire material, whereby said first wire material is made from a platinum-rhodium alloy, characterized in that said first layer contains an activator in the form of a second wire material which is knitted among the first wire material and which is made from un-alloyed platinum.

公开(公告)号：US20220062885A1

公开(公告)日：2022-03-03

申请号：US17009582

申请日：2020-09-01

Applicant: Lawrence Livermore National Security, LLC

Inventor： Francesco Fornasiero ,  Edmond Y. Lau ,  Carlos A. Valdez

IPC: B01J35/06 ,  B01J37/02 ,  B01J35/10

Abstract: A membrane includes a first layer, and a second layer coupled to the first layer. The second layer includes a network of catalytic sites, each catalytic site having a catalytic center characterized by promoting a chemical reaction of a target material. A method of forming a chemically reactive membrane includes applying a first solution to a structure, the first solution includes a macrocyclic ligand having electron-donating ligands and a side functional group for crosslinking, crosslinking a plurality of the macrocyclic ligand to form a first network of crosslinked macrocyclic ligands, and applying a second solution to the structure, the second solution comprising a catalytic center. Each catalytic center complexes with the electron-donating ligands of each macrocyclic ligand to form catalytic sites in the first network of crosslinked macrocyclic ligands.

公开(公告)号：US11224860B2

公开(公告)日：2022-01-18

申请号：US16288860

申请日：2019-02-28

Applicant: The Hong Kong Polytechnic University

Inventor： Woon-Fong Wallace Leung

IPC: B01J35/06 ,  B01J37/00 ,  B01J23/18 ,  B01J21/06 ,  B01J35/00 ,  B01J27/232 ,  B01J21/16 ,  B01D53/86 ,  B01J37/02

Abstract: The present disclosure relates to a surface comprising a photocatalyst affixed thereupon via an adhesive layer and methods for affixing the photocatalyst to the surface via the adhesive layer. The present disclosure also provides a purifier comprising the photocatalyst affixed surface and a purifier system comprising such purifier.

公开(公告)号：US11224853B2

公开(公告)日：2022-01-18

申请号：US17043882

申请日：2018-04-11

Applicant: W.L. Gore & Associates, Inc.

Inventor： Gary P. Harp ,  Jeffrey A. Knopf, Jr. ,  William J. Napier, III

IPC: B01J10/00 ,  B01J19/24 ,  B01J19/18 ,  B01J19/00 ,  B01J31/06 ,  B01J35/06 ,  C07C209/36

Abstract: A catalytic membrane composite that includes porous supported catalyst particles durably enmeshed in a porous fibrillated polymer membrane is provided. The porous fibrillated polymer membrane may be manipulated to take the form of a tube, disc, or diced tape and used in multiphase reaction systems. The supported catalyst particles are composed of at least one finely divided metal catalyst dispersed on a porous support substrate. High catalytic activity is gained by the effective fine dispersion of the finely divided metal catalyst such that the metal catalyst covers the support substrate and/or is interspersed in the pores of the support substrate. In some embodiments, the catalytic membrane composite may be introduced to a stirred tank autoclave reactor system, a continuous flow reactor system, or a Parr Shaker reaction system and used to effect the catalytic reaction.

公开(公告)号：US20210245142A1

公开(公告)日：2021-08-12

申请号：US17171945

申请日：2021-02-09

Applicant: UIF (University Industry Foundation), Yonsei University

Inventor： Jung Ho Hwang ,  Sang Mo Kang ,  Hyeong Rae Kim

IPC: B01J23/889 ,  D01D5/00 ,  D01D10/02 ,  D01F9/24 ,  C02F1/72 ,  B01J21/18 ,  B01J35/06 ,  B01J37/34 ,  B01J37/08

Abstract: The present invention relates to a method for producing hollow activated carbon nanofibers for activating peroxymonosulfate used in water purification; a catalyst for water purification comprising the hollow active carbon nanofibers produced by the method; and a method for purifying contaminated water using the catalyst. The production method of the present invention can easily produce hollow activated carbon nanofibers capable of rapidly purifying contaminated water by highly efficiently activating peroxymonosulfate used for water purification.

公开(公告)号：US20210237036A1

公开(公告)日：2021-08-05

申请号：US17236669

申请日：2021-04-21

Applicant: NOVA Chemicals (International) S.A.

Inventor： Vasily Simanzhenkov ,  Xiaoliang Gao ,  David Sullivan ,  Yipei Styles ,  Yoonhee Kim ,  Hanna Drag ,  Marie Barnes

IPC: B01J23/00 ,  B01J37/08 ,  B01J35/02 ,  C07C5/42 ,  B01J35/00 ,  B01J6/00 ,  B01J37/10 ,  B01J27/057 ,  B01J37/00 ,  B01J35/06 ,  C07C5/48

Abstract: Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.

公开(公告)号：US11071947B2

公开(公告)日：2021-07-27

申请号：US17083077

申请日：2020-10-28

Applicant: W. L. Gore & Associates, Inc.

Inventor： Zhuonan Song ,  Stephen Stark

IPC: B01D53/86 ,  B01D39/20 ,  B01D53/88 ,  B01D71/36 ,  B01D53/90 ,  B01J35/06 ,  B01J35/04

Abstract: Some embodiments of the present disclosure relate to a method of regenerating at least one filter medium comprising: providing at least one filter medium, wherein the at least one filter medium comprises: at least one catalyst material; and ammonium bisulfate (ABS) deposits, ammonium sulfate (AS) deposits, or any combination thereof; flowing a flue gas stream transverse to a cross-section of a filter medium, such that the flue gas stream passes through the cross section of the at least one filter medium, wherein the flue gas stream comprises: NOx compounds comprising: Nitric Oxide (NO), and Nitrogen Dioxide (NO2); and increasing an NOx removal efficiency of the at least one filter medium after removal of deposits.

公开(公告)号：US20210213423A1

公开(公告)日：2021-07-15

申请号：US15733841

申请日：2019-05-28

Applicant: BASF SE

Inventor： Matthias Georg SCHWAB ,  Esther GROENEVELD ,  Peter BERBEN ,  Harry BOUWMAN ,  Willem DIJKSTRA ,  Bart MICHIELSEN ,  Jasper LEFEVERE

IPC: B01J21/04 ,  B01J35/04 ,  B01J35/06 ,  B01J35/10 ,  B01J35/00 ,  B01J37/00 ,  B01J37/04 ,  B01J37/08 ,  C07C1/24 ,  C07C5/27 ,  B33Y10/00 ,  B28B1/00 ,  B28B11/24 ,  B29C64/106

Abstract: A method for producing a three-dimensional porous transition alumina catalyst monolith of stacked catalyst fibers, comprising the following steps: a) Preparing a suspension paste in a liquid diluent of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof and which suspension can furthermore comprise a binder material in a maximum amount of 20 wt %, based on the amount of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof and/or a plasticizer and/or a dopant in a maximum amount of 10 wt %, based on the amount of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof, all particles in the suspension having a number average particle size in the range of from 0.05 to 700 μm, b) extruding the paste of step a) through one or more nozzles to form fibers, and depositing the extruded fibers to form a three-dimensional porous catalyst monolith precursor, c) drying the porous catalyst monolith precursor to remove the liquid diluent, d) performing a temperature treatment of the dried porous catalyst monolith precursor of step c) at a temperature in the range of from 500 to 1000° C., to form the transition alumina catalyst monolith, wherein no temperature treatment of the porous catalyst monolith precursor or porous catalyst monolith at temperatures above 1000° C. is performed and wherein no further catalytically active metals, metal oxides or metal compounds are applied to the surface of the transition alumina precursor particles, the catalyst monolith precursor or transition alumina catalyst monolith. no further catalytically active metals, metal oxides or metal compounds are present in the suspension paste.

公开(公告)号：US11014072B2

公开(公告)日：2021-05-25

申请号：US16358802

申请日：2019-03-20

Applicant: NOVA Chemicals (International) S.A.

Inventor： Vasily Simanzhenkov ,  Xiaoliang Gao ,  David Sullivan ,  Yipei Styles ,  Yoonhee Kim ,  Hanna Drag ,  Marie Barnes

IPC: B01J23/00 ,  B01J37/08 ,  B01J35/02 ,  C07C5/42 ,  B01J35/00 ,  B01J6/00 ,  B01J37/10 ,  B01J27/057 ,  B01J37/00 ,  B01J35/06 ,  C07C5/48 ,  B01J38/12 ,  B01J37/04

Abstract: Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.

公开(公告)号：US11008524B2

公开(公告)日：2021-05-18

申请号：US15509734

申请日：2015-02-27

Applicant: National University of Singapore

Inventor： Sibudjing Kawi ,  Kus Hidajat ,  Usman Oemar ,  Ashok Jangam ,  Ming Li Ang ,  Yasotha Kathiraser ,  Zhigang Wang

IPC: C10J3/82 ,  B01D71/02 ,  B01D53/22 ,  C10K3/00 ,  C01B3/16 ,  B01J37/18 ,  B01J23/755 ,  B01J23/83 ,  B01J35/06 ,  B01J37/02 ,  B01D63/02 ,  B01J8/00 ,  B01J8/04 ,  C10L5/00 ,  B01J21/16 ,  B01J23/00 ,  B01J29/03 ,  C10J3/02 ,  C10K1/34 ,  B01J37/08 ,  C10J3/72 ,  C10K3/04

Abstract: A two-reactor catalytic system including a catalytic membrane gasification reactor and a catalytic membrane water gas shift reactor. The catalytic system, for converting biomass to hydrogen gas, features a novel gasification reactor containing both hollow fiber membranes that selectively allow O2 to permeate therethrough and a catalyst that facilitates tar reformation. Also disclosed is a process of converting biomass to H2. The process includes the steps of, among others, introducing air into a hollow fiber membrane; mixing the O2 permeating through the hollow fiber membrane and steam to react with biomass to produce syngas and tar; and reforming the tar in the presence of a catalyst to produce more syngas.