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1. WO2020092111 - CATALYTIC WASHCOAT WITH ADDED ALUMINA FOR NO X ABATEMENT

Publication Number WO/2020/092111
Publication Date 07.05.2020
International Application No. PCT/US2019/057800
International Filing Date 24.10.2019
IPC
B01J 37/03 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
37Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
02Impregnation, coating or precipitation
03Precipitation; Co-precipitation
B01J 29/76 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
29Catalysts comprising molecular sieves
04having base-exchange properties, e.g. crystalline zeolites, pillared clays
06Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
70of types characterised by their specific structure not provided for in groups B01J29/08-B01J29/65130
72containing iron group metals, noble metals or copper
76Iron group metals or copper
B01J 35/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
10characterised by their surface properties or porosity
B01D 53/94 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
92of engine exhaust gases
94by catalytic processes
Applicants
  • BASF CORPORATION [US]/[US]
Inventors
  • XUE, Wen-Mei
  • PETROVIC, Ivan
  • YANG, Jeff H.
  • ROTH, Stanley A.
  • LI, Yuejin
Agents
  • GOMEZ, Baltazar
  • MOONJELY, Joseph
Priority Data
62/753,18831.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CATALYTIC WASHCOAT WITH ADDED ALUMINA FOR NO X ABATEMENT
(FR) COUCHE LAVIS CATALYTIQUE À ALUMINE AJOUTÉE POUR RÉDUCTION DE NO X
Abstract
(EN)
The present disclosure provides catalyst compositions for NOx conversion and catalytic articles incorporating such catalyst compositions. Certain catalyst compositions include a zeolite with a silica-to-alumina ratio from 5 to 20 and sufficient Cu exchanged into cation sites of the zeolite such that the zeolite has a Cu/Al ratio of 0.1 to 0.5 and a CuO loading of 1 to 15 wt.%; and a copper trapping component in a concentration in the range of 1 to 20 wt.%, the copper trapping component including a plurality of particles having a particle size of about 0.5 to 20 microns. Certain catalyst compositions include, as the copper trapping component, alumina present as a plurality of alumina particles with a D90 particle size distribution in the range of 0.5 microns to 20 microns.
(FR)
La présente invention concerne des compositions de catalyseur pour la conversion de NOx et des articles catalytiques incorporant de telles compositions de catalyseur. Certaines compositions de catalyseur comprennent une zéolite ayant un rapport silice-alumine de 5 à 20 et suffisamment de Cu échangé dans des sites cationiques de la zéolite de sorte que la zéolite ait un rapport Cu/Al de 0,1 à 0,5 et une charge de CuO de 1 à 15 % en poids ; et un composant de piégeage de cuivre dans une concentration dans la plage de 1 à 20 % en poids, le composant de piégeage de cuivre comprenant une pluralité de particules ayant une taille de particule d'environ 0,5 à 20 microns. Certaines compositions de catalyseur comprennent, en tant que composant de piégeage de cuivre, de l'alumine présente sous la forme d'une pluralité de particules d'alumine ayant une distribution de taille de particule D90 dans la plage de 0,5 micron à 20 microns.
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