Outlet-coated ceramic honeycomb bodies and methods of manufacturing same

US11746061B2 · kind B2 · utility

Assignee

• CORNING INCORPORATED · US

Inventors

• Douglas Munroe Beall · Corning, US
• Achim Karl-Erich Heibel · Corning, US
• Konstantin Vladimirovich Khodosevich · Saint Petersburg, RU
• Kenneth Richard Miller · Addison, US
• Hrushikesh Govindrao Pimpalgaonkar · Savanuru, IN
• Kunal Upendra Sakekar · Jamkhed, IN
• Min Shen · Corning, US
• Todd Parrish St Clair · Riverside, US

Key dates

• Filing date: May 3, 2019
• Grant date: Sep 5, 2023
• Expiry date: Dec 10, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A coated ceramic honeycomb body comprising a honeycomb structure comprising a matrix of intersecting porous walls forming a plurality of axially-extending channels, at least some of the plurality of axially-extending channels being plugged to form inlet channels and outlet channels, wherein a total surface area of the outlet channels is greater than a total surface area of the inlet channels, and wherein a catalyst is preferentially located within the outlet channels, and preferentially disposed on non-filtration walls of the outlet channels. Methods and apparatus configured to preferentially apply a catalyst-containing slurry to the outlet channels and non-filtration walls are provided, as are other aspects.