CO2 Gas Phase Reduction Device Heating Chamber
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In gas-phase reduction devices for carbon dioxide, liquid products deposited on the reduction electrode shorten the life times of carbon dioxide reduction reactions and complicate the recovery process, as they limit the direct supply of gas-phase carbon dioxide and require device shutdown for product recovery.
Innovation Solution
A gas-phase reduction device with a gas reduction sheet having an ion exchange membrane and reduction electrode, connected to an oxidation chamber and a reduction chamber, where a heat source surrounds the reduction chamber to vaporize and remove liquid products, ensuring continuous carbon dioxide supply and facilitating easy recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If gas-phase carbon dioxide is supplied to the reduction electrode to increase supply and promote reduction reaction, then carbon dioxide reduction reaction is promoted, but liquid products deposit on the reduction electrode surface and block further supply
Solution Approach 1:
The patent introduces a heating unit that heats the reduction chamber to a temperature of 50°C or higher, causing liquid products deposited on the reduction electrode to evaporate. This phase transition from liquid to vapor removes the blocking effect and restores gas-phase carbon dioxide supply to the electrode surface, thereby extending reaction duration while maintaining high productivity
Solution Approach 2:
The system uses the heat generated during normal operation (or an integrated heating unit) to automatically evaporate and remove liquid products from the reduction electrode surface. This self-cleaning mechanism operates continuously without requiring manual intervention or device shutdown, maintaining consistent reaction conditions throughout operation
2Ease of manufacture
If liquid products are recovered by opening the reduction chamber, then products can be collected, but the device operation is stopped during recovery
Solution Approach 1:
The heating unit operates continuously during device operation to evaporate liquid products in real-time, preventing their accumulation and blockage. This continuous action eliminates the need to stop the device for product recovery, maintaining uninterrupted carbon dioxide reduction reactions and maximizing productivity
Solution Approach 2:
The heating unit acts as an intermediary between the liquid products and the gas-phase environment, facilitating their conversion to vapor form that can be easily removed from the reaction system. This intermediary heating process enables continuous operation while maintaining product recovery capability
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 solution extends the life times of carbon dioxide reduction reactions by maintaining a continuous supply of gas-phase carbon dioxide and allows for efficient recovery of liquid products as vapor, improving operational efficiency.
Implementation Method 1
a heat source that surrounds the reduction chamber
Data Source
AI summary
A gas-phase reduction device for carbon dioxide includes: an oxidation chamber containing an oxidation electrode; a reduction chamber to which carbon dioxide is supplied; a gas reduction sheet that has an ion exchange membrane and a reduction electrode laminated together therein and that is disposed between the oxidation chamber and the reduction chamber with the ion exchange membrane facing the oxidation chamber and the reduction electrode facing the reduction chamber; a conducting wire that connects the oxidation electrode and the reduction electrode; and a heat source that surrounds the reduction chamber.