Substituted Epoxide-Modified Sorbents for Oxidation-Resistant CO2 Capture
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Solution Overview
Problem
Existing materials for capturing CO2 are not effective in ambient air and lack stability under oxidative conditions, leading to reduced CO2 capture capacity and high costs.
Innovation Solution
Development of substituted epoxide modified sorbents with a CO2-philic phase formed by reacting amines with substituted epoxides, creating a modified amine polymer that enhances CO2 binding capacity and resistance to oxidation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional sorbent materials are used for CO2 capture, then CO2 binding capacity is achieved, but stability under oxidative conditions deteriorates
Solution Approach 1:
The patent applies composite materials by combining amine-functionalized sorbent materials with substituted epoxides to create a new composite sorbent system. The amine group provides CO2 binding capacity while the substituted epoxide component enhances oxidative stability, resolving the contradiction between CO2 capture effectiveness and stability under oxidative conditions.
Solution Approach 2:
The patent modifies the chemical parameters of the sorbent material by introducing substituted epoxide groups with varying structural characteristics. By changing parameters such as the type and position of substituents on the epoxide ring, the patent optimizes both CO2 binding capacity and oxidative stability, achieving a balance between these competing requirements.
2Quantity of substance
If conventional sorbent materials are used for CO2 capture, then initial CO2 capture capacity is achieved, but commercial lifetime deteriorates due to oxidative degradation
Solution Approach 1:
The patent applies beforehand cushioning by pre-modifying the amine-functionalized sorbent with substituted epoxides before deployment. This pre-modification creates a protective chemical structure that cushions the sorbent against oxidative degradation during use, thereby extending its commercial lifetime while maintaining CO2 capture capacity.
Solution Approach 2:
By creating a composite structure where substituted epoxide groups are integrated into the amine-functionalized sorbent matrix, the patent develops a material that simultaneously provides high CO2 capture capacity and enhanced resistance to oxidative degradation over time, thus extending commercial lifetime.
3Productivity
If conventional sorbent materials are used, then CO2 capture function is provided, but costs increase due to reduced effectiveness and shorter lifetime
Solution Approach 1:
The patent optimizes cost-effectiveness by carefully selecting and adjusting parameters of the substituted epoxide modification process. By controlling the degree of substitution, the type of epoxide used, and the reaction conditions, the patent achieves high CO2 capture effectiveness while managing the complexity and cost of manufacture.
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
The modified sorbents maintain high CO2 capture capacity and stability, reducing costs and extending the sorbent's commercial lifetime by minimizing oxidative degradation.
Implementation Method 1
the CO2-philic phase includes the reaction product of a substituted epoxide and an amine
Implementation Method 2
creating a modified amine polymer that enhances CO2 binding capacity and resistance to oxidation
Data Source
AI summary
The present disclosure provides for substituted epoxide modified sorbents and contactors, methods of using sorbents and contactors to capture CO2, structures including the sorbent, and systems and devices using sorbents and contactors to capture CO2. The present disclosure provides for sorbents and contactors that can include a CO2-philic phase and a support. The CO2-philic phase can include a modified amine polymer that is the reaction product of an amine and a substituted epoxide.