公开(公告)号：US12121881B2

公开(公告)日：2024-10-22

申请号：US17285799

申请日：2019-09-19

Applicant: BASF SE

Inventor： Andrey Karpov ,  Marco Oskar Kennema ,  Nicolas Duyckaerts ,  Christian Walsdorff ,  Christian Bartosch ,  Juergen Zuehlke ,  Miguel Angel Romero Valle

IPC: B01J23/68 ,  B01J21/04 ,  B01J35/40 ,  B01J35/56 ,  B01J35/61 ,  B01J35/63 ,  B01J35/64 ,  B01J35/66 ,  B01J37/02 ,  B01J37/08 ,  C07D301/04

CPC classification number: B01J23/688 ,  B01J21/04 ,  B01J35/40 ,  B01J35/56 ,  B01J35/612 ,  B01J35/633 ,  B01J35/635 ,  B01J35/651 ,  B01J35/653 ,  B01J35/657 ,  B01J35/695 ,  B01J37/0213 ,  B01J37/082 ,  C07D301/04

Abstract: A shaped catalyst body for producing ethylene oxide by gas-phase oxidation of ethylene, comprising silver deposited on a porous refractory support, the shaped catalyst body having a first face side surface, a second face side surface and a circumferential surface, characterized by a content of at least 20 wt.-% of silver, relative to the total weight of the shaped catalyst body; a multilobe structure; a plurality of passageways extending from the first face side surface to the second face side surface, outer passageways being arranged around a central passageway with one outer passageway being assigned to each lobe, wherein neighboring outer passageways are arranged essentially equidistantly to each other and the outer passageways are arranged essentially equidistantly to the central passageway; a minimum wall thickness A between two neighboring passageways in the range of 0.6 to 1.3 mm; a minimum wall thickness B between each outer passageway and the circumferential surface in the range of 1.1 to 1.8 mm; and a BET surface area in the range of 1.6 to 3.0 m2/g. The shaped catalyst bodies allow for a favorable balance between mechanical stability, pressure drop and selectivity. The invention also relates to a process for producing ethylene oxide by gas-phase oxidation of ethylene, comprising reacting ethylene and oxygen in the presence of a shaped catalyst body as defined above. The invention further relates to a process for preparing a shaped catalyst body as above, comprising i) impregnating a refractory support having a BET surface area in the range of 1.4 to 2.5 m2/g with a silver impregnation solution; and ii) subjecting the impregnated refractory support to a calcination process; wherein steps i) and ii) are optionally repeated.

公开(公告)号：US12071881B2

公开(公告)日：2024-08-27

申请号：US17594005

申请日：2020-04-15

Applicant: BASF Corporation

Inventor： Matthias Peter ,  Susanne Stiebels ,  Andreas Zeeb ,  Claudia Zabel ,  Maria Heenemann

IPC: B01J29/72 ,  B01J35/61 ,  B01J35/64 ,  B01J37/02 ,  F01N3/022 ,  F01N3/035 ,  F01N3/20 ,  F01N3/28

CPC classification number: F01N3/035 ,  B01J29/723 ,  B01J35/612 ,  B01J35/613 ,  B01J35/657 ,  B01J37/0215 ,  F01N3/022 ,  F01N3/2066 ,  F01N3/2803 ,  F01N2250/02 ,  F01N2260/14 ,  F01N2370/04 ,  F01N2510/063 ,  F01N2510/068

Abstract: The present invention relates to a selective catalytic reduction catalyst comprising a porous wall-flow filter substrate; wherein in the pores of the porous internal walls and on the surface of the porous internal walls, the catalyst comprises a selective catalytic reduction coating comprising a selective catalytic reduction component comprising a zeolitic material comprising one or more of copper and iron. The present invention further relates to a process for preparing a selective catalytic reduction catalyst using particles of a carbon-containing additive and an aqueous mixture comprising said particles of a carbon-containing additive.

公开(公告)号：US12023650B2

公开(公告)日：2024-07-02

申请号：US17311352

申请日：2020-12-04

Applicant: GUANGDONG UNIVERSITY OF TECHNOLOGY

Inventor： Taicheng An ,  Jiejing Kong ,  Guiying Li

IPC: B01J23/10 ,  B01J6/00 ,  B01J8/02 ,  B01J35/39 ,  B01J37/02 ,  B01J37/34 ,  B01J35/64

CPC classification number: B01J23/10 ,  B01J6/001 ,  B01J8/0285 ,  B01J35/39 ,  B01J37/0201 ,  B01J37/343 ,  B01J35/657

Abstract: The present application is related to a three-dimensionally ordered macroporous oxygen-deficient cerium dioxide catalyst, and a preparation method and an application thereof. The catalyst is prepared by using a polymethyl methacrylate (PMMA) colloidal crystal template method, calcining in a reducing/oxidizing atmosphere, and treating with water vapor, and the prepared catalyst shows an excellent activity and stability in photothermocatalytic purification of typical amospheric pollutants such as styrene, n-hexane, and cyclohexane. The method has the characteristics of cheap and easily available raw materials, simple preparation process, controllable oxygen vacancy, surface acid amount, and acid strength of the obtained material, and excellent photothermocatalytic performance.

公开(公告)号：US20240100508A1

公开(公告)日：2024-03-28

申请号：US18275298

申请日：2022-07-27

Applicant: LG Chem, Ltd.

Inventor： Sojin Kim ,  Sangjin Kim ,  Suji Kim ,  Jun Yeon Cho ,  Jae Soon Choi ,  Jun Seon Choi

IPC: B01J23/00 ,  B01J35/00 ,  B01J35/64 ,  B01J37/02 ,  C01B3/40

CPC classification number: B01J23/002 ,  B01J35/19 ,  B01J35/657 ,  B01J37/0211 ,  B01J37/0213 ,  B01J37/0236 ,  C01B3/40 ,  C01B2203/0227 ,  C01B2203/1241

Abstract: The catalyst for methane reformation according to an exemplary embodiment of the present application comprises: a porous metal support; perovskite-based catalyst particles supported on the porous metal support; and a perovskite-based binder supported on the porous metal support, and the perovskite-based catalyst particles and the perovskite-based binder each independently comprise the compound represented by Chemical Formula 1:


Sr1-xAxTi1-yByO3-δ  [Chemical Formula 1]



wherein all the variables are described herein.