Porous ceramic substrate for co2 adsorption and desorption, and method of removing co2 from a gaseous stream

A sorbent-impregnated porous ceramic substrate with tailored geometric features addresses the challenge of high CO2 adsorption capacity and reduced pressure drop, enhancing energy efficiency in carbon capture processes.

WO2026117360A1PCT designated stage Publication Date: 2026-06-04CORNING INC

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CORNING INC
Filing Date
2025-11-06
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing carbon capture technologies face challenges in achieving high CO2 adsorption capacity while minimizing pressure drop and thermal mass, which can impact the energy efficiency of the desorption process.

Method used

A sorbent-impregnated porous ceramic substrate with a honeycomb structure, featuring specific geometric parameters such as cell density, wall thickness, and pore size, allows for high CO2 adsorption capacity without significant penalties in pressure drop and thermal mass, utilizing sorbents like polyethylenimine (PEI) applied directly to the ceramic body.

Benefits of technology

The substrate achieves CO2 adsorption capacities up to 14 L/L with reduced energy requirements for desorption, balancing performance and efficiency by optimizing geometric properties.

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Abstract

A sorbent-impregnated porous ceramic substrate comprises, according to one embodiment, (a) an extruded ceramic body containing an array of open channels bounded by porous cell walls, and (b) a sorbent applied to the porous cell walls, where the porous cell walls have a predetermined wall thickness and include pores having a median pore diameter in a range from 0.5 microns to 5 microns. A ratio of the predetermined wall thickness in microns to the median pore diameter is between 20 and 500.
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