Sacrificial Ceramic CO2 Panels via Reactive Mineral Bridging
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Solution Overview
Problem
Current architectural products do not effectively sequester atmospheric carbon dioxide on a large scale, despite mineral CO2 weathering being a natural process that has captured billions of tons of CO2 historically, as they lack the necessary exposure and availability of reactive minerals like magnesium, calcium, and sodium-rich silicate minerals.
Innovation Solution
Development of sacrificial ceramic CO2 sequestration architectural products comprising a sintered/heat-treated mixture with reactive solid phases rich in Mg, Ca, and Na, and particle-bridging phases, optimized for enhanced mineralization and porosity to increase the surface area for CO2 reaction, which are designed to deteriorate and sequester CO2 over their lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If architectural products use conventional durable materials, then mechanical strength and longevity are improved, but CO2 sequestration capability deteriorates
Solution Approach 1:
The patent creates a composite material system combining reactive minerals (olivine, serpentine, talc, soapstone) with ceramic matrix materials. This composite structure allows the product to simultaneously achieve mechanical strength from the ceramic matrix and CO2 sequestration capability from the reactive mineral phases, resolving the contradiction between durability and carbon capture functionality.
Solution Approach 2:
The patent applies local quality by creating regions with different mineral compositions and reactivity levels within the architectural product. The reactive mineral phases are distributed throughout the matrix to provide localized CO2 reaction sites, while the ceramic matrix provides structural integrity. This spatial differentiation allows simultaneous optimization of both strength and sequestration properties.
2Quantity of substance
If architectural products use reactive minerals for CO2 sequestration, then CO2 capture capability is improved, but material stability and durability deteriorate
Solution Approach 1:
The patent utilizes parameter changes by controlling the particle size, surface area, and chemical composition of the reactive mineral phases. By optimizing these parameters, the material achieves enhanced CO2 reactivity while maintaining sufficient structural stability for architectural applications. The controlled transformation of mineral phases during processing further stabilizes the composition.
3Productivity
If mineral weathering is accelerated for enhanced CO2 capture, then CO2 sequestration rate is improved, but product lifespan and structural integrity deteriorate
Solution Approach 1:
The patent applies dynamics by designing a controlled weathering process where the material progressively transforms from reactive mineral phases to stable carbonate minerals over time. This dynamic transformation allows accelerated initial CO2 capture while the progressive nature of the reaction ensures sustained structural integrity throughout the product lifespan, rather than rapid complete degradation.
4Productivity
If surface area of reactive minerals is increased, then CO2 reaction activity is improved, but mechanical strength and structural integrity deteriorate
Solution Approach 1:
The patent utilizes porous materials by incorporating reactive mineral phases with optimized pore structures and surface areas. The porous structure provides extensive surface area for CO2 reaction while the interconnected pore network maintains structural coherence. The ceramic matrix fills and binds these porous structures, preserving mechanical strength despite the high surface area of reactive phases.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
These products significantly increase CO2 sequestration by maximizing the reaction area and activity of reactive minerals, potentially removing millions of tons of CO2 from the atmosphere, while maintaining sufficient mechanical properties for their intended use.
Implementation Method 1
each reactive solid phase comprises one or more weathering materials, wherein each weathering material is Mg—, Ca—, and/or Na-rich (greater than 40 atomic % of the cations of the weathering materials), Si-poor (less than 55 atomic % of the cations of the weathering materials), and capable of enhanced mineralization
Implementation Method 2
Weathering of these minerals produces harmless bicarbonates which are deposited in soils or carried by rivers to the sea where shellfish and corals convert them to carbonate rocks like limestone and dolomite
Implementation Method 3
The present invention is directed to a sacrificial ceramic CO2 sequestration architectural product comprising a sintered/heat-treated mixture
Implementation Method 4
The present invention is directed to a sacrificial ceramic CO2 sequestration architectural product comprising a sintered/heat-treated mixture
Implementation Method 5
one or more particle-bridging phases that bridge the one or more reactive solid phases
Data Source
AI summary
A sacrificial ceramic CO2 sequestration architectural product comprising a sintered/heat-treated mixture that comprises: one or more reactive solid phases, wherein each reactive solid phase comprises one or more weathering materials capable of enhanced mineralization, and one or more particle-bridging phases that bridge the one or more reactive solid phases, and an open porosity that is in a range from about 15 vol% to about 30 vol%.