Metal Oxide Catalyst CO2 Sequestration
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Solution Overview
Problem
Current carbon dioxide sequestration systems face challenges related to cost, throughput, and robustness in effectively reducing atmospheric CO2 levels, which contribute to global warming and associated catastrophic effects.
Innovation Solution
A carbon dioxide sequestration method involving the mixing of CO2 with an alkyl alcohol and contacting the mixture with a metal oxide catalyst, such as zirconia, to produce high-value carbonate products like diethyl carbonate, which eliminates the need for toxic carbon monoxide and allows for reusable, cost-effective catalysts under extreme conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If existing carbon dioxide sequestration systems are used, then CO2 reduction is achieved, but cost and system robustness deteriorate
Solution Approach 1:
The invention changes the chemical parameters of the sequestration system by using metal oxide catalysts (such as zinc oxide, calcium oxide, or magnesium oxide) to catalyze the conversion of CO2 and alkyl alcohol into carbonates. This catalytic approach modifies the reaction conditions and kinetics, improving system robustness while maintaining CO2 reduction effectiveness.
Solution Approach 2:
The invention introduces metal oxide catalysts as intermediary substances that facilitate the reaction between CO2 and alkyl alcohol. These catalysts act as mediators that enable the sequestration reaction to proceed under milder and more robust conditions, resolving the contradiction between CO2 reduction and system reliability.
2Object-affected harmful factors
If existing carbon dioxide sequestration systems are used, then CO2 reduction is achieved, but cost increases
Solution Approach 1:
The invention employs metal oxide catalysts that are relatively inexpensive and can be easily replaced or regenerated. These catalysts enable a simpler, more cost-effective sequestration process compared to existing systems, addressing the cost issue while maintaining CO2 reduction capability.
Solution Approach 2:
By changing the chemical parameters through catalysis, the invention achieves CO2 sequestration under more economical conditions, reducing the overall system cost while maintaining effectiveness.
3Object-affected harmful factors
If existing carbon dioxide sequestration systems are used, then CO2 reduction is achieved, but throughput decreases
Solution Approach 1:
The metal oxide catalysts serve as intermediaries that accelerate the sequestration reaction rate, thereby increasing the throughput of CO2 conversion. This catalytic mediation enables faster reaction kinetics while maintaining the CO2 reduction objective.
Solution Approach 2:
The invention modifies the reaction parameters through catalysis, improving the reaction rate and overall throughput of the sequestration process while maintaining CO2 reduction effectiveness.
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
This approach effectively sequesters CO2, producing valuable carbonate products while offering stability and cost-effectiveness due to the reuse of metal oxide catalysts, thus addressing the limitations of existing systems and potentially mitigating global warming impacts.
Implementation Method 1
contacting the reaction mixture with a metal oxide catalyst under reaction conditions sufficient to produce a carbonate as a reaction product
Data Source
AI summary
Embodiments of the present invention relate to carbon dioxide sequestration systems and methods. In an embodiment, the invention includes a method of sequestering carbon dioxide. The method can include mixing carbon dioxide with an alcohol to form a reaction mixture and contacting the reaction mixture with a metal oxide catalyst under reaction conditions sufficient to produce a carbonate as a reaction product. In an embodiment, the invention includes a carbon dioxide sequestration system. The system can include a carbon dioxide supply source, an alcohol supply source, and a reaction vessel. A metal oxide catalyst can be disposed within the reaction vessel. The system can be configured to mix carbon dioxide from the carbon dioxide supply source with an alcohol from the alcohol supply source to form a reaction mixture and contact the reaction mixture with the metal oxide catalyst. Other embodiments are also described herein.