Polyamine Carbon Fixation Battery for Energy-Generating CO2 Capture
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing carbon dioxide fixation technologies require energy input for the fixation process and do not consider energy extraction.
Innovation Solution
A carbon dioxide fixation device incorporating an aqueous solution with a water-soluble polymer compound and positive and negative electrode materials, which allows for the extraction of energy during carbon dioxide fixation by producing carbon dioxide-derived carbonate during discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional carbon dioxide fixation methods (BECCS or DACCS) are used, then carbon dioxide can be captured and stored, but energy input is required at the stage of transition from atmospheric carbon dioxide capture to storage
Solution Approach 1:
The patent combines carbon dioxide fixation with energy generation by integrating an aqueous solution containing a water-soluble polymer compound and electrode materials into a single system. The carbon dioxide absorption process and electrochemical energy extraction process occur simultaneously in the same device, resolving the contradiction between fixing carbon dioxide and requiring energy input.
Solution Approach 2:
The aqueous solution containing the water-soluble polymer compound serves multiple functions: it acts as both the carbon dioxide absorbing medium and the electrolyte for electrochemical energy generation. This multi-functionality allows the system to both fix carbon dioxide and generate energy without requiring separate processes.
2Quantity of substance
If a water-soluble polymer compound is used for carbon dioxide absorption, then efficient carbon dioxide absorption and excellent safety are achieved, but the concentration must be precisely controlled
Solution Approach 1:
The patent specifies precise parameter ranges for the water-soluble polymer compound concentration (1-1000 mass ppm) and pH (8.6-14) to optimize both carbon dioxide absorption efficiency and safety. By defining these parameter ranges, the system achieves efficient carbon dioxide fixation while maintaining controllable complexity through clear operational specifications.
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 device efficiently fixes atmospheric carbon dioxide while extracting energy, functioning as a negative emission system that recovers carbon dioxide and generates electrical energy.
Implementation Method 1
an aqueous solution having a metal ion and a polyamine dissolved in advance; exposing the aqueous solution to the air; and absorbing (dissolving) and then precipitating atmospheric carbon dioxide as a carbonate
Implementation Method 2
an aqueous solution containing a water-soluble polymer compound and positive and negative electrode materials, and is capable of producing carbon dioxide-derived carbonate after discharge between the electrode materials, energy can be extracted during carbon dioxide fixation
Data Source
AI summary
Provided is a carbon dioxide fixation device capable of efficiently fixing atmospheric carbon dioxide while extracting energy. The carbon dioxide fixation device of the present invention includes an aqueous solution containing a water-soluble polymer compound and positive and negative electrode materials, and is capable of producing carbon dioxide-derived carbonate after discharge between the electrode materials. In addition, it is preferable that the water-soluble polymer compound has two or more amino groups in the molecule, has a weight-average molecular weight of not less than 500 and not more than 50,000, and is a non-volatile polyamine.