CO2 Recovery System Gas Purity Control
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Solution Overview
Problem
In carbon dioxide recovery systems, the existing methods fail to effectively separate carbon dioxide from other gases, leading to reduced concentration of collected carbon dioxide due to air mixing with carbon dioxide in the collection process.
Innovation Solution
A carbon dioxide recovery system comprising a recovery unit, an expeller unit, a collector unit, a connector unit, and a controller unit, where the controller expels remaining gases from the collector pipe before desorbing carbon dioxide, preventing air from mixing with the carbon dioxide during collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If carbon dioxide is collected through a pipe without expelling remaining gases first, then the collection process is simpler and faster, but air mixes with carbon dioxide reducing its concentration
Solution Approach 1:
The expeller unit expels remaining gases from the pipe before carbon dioxide collection begins. This preliminary action removes air from the collector pipe, preventing mixing with the carbon dioxide that will be collected subsequently, thereby maintaining high concentration without requiring complex separation mechanisms during collection
2Quantity of substance
If remaining gases are expelled before carbon dioxide desorption, then carbon dioxide concentration is improved, but the overall process time increases
Solution Approach 1:
The controller unit coordinates the expeller unit to expel remaining gases from the collector pipe before the recovery unit desorbs carbon dioxide. This preliminary gas expulsion prevents contamination, ensuring high purity carbon dioxide collection while the controller optimizes the timing to minimize overall process duration
3Quantity of substance
If multiple opening and closing devices are used to control gas flow, then gas separation is improved, but device complexity increases
Solution Approach 1:
The system divides the gas flow control function into separate segments: the expeller opening and closing device controls the expeller pipe for gas expulsion, while the first and second collector opening and closing devices control different sections of the collector pipe. This segmentation allows precise control over when and where gases are expelled and collected, achieving effective separation through coordinated simple actions rather than a single complex mechanism
Solution Approach 2:
The controller unit acts as an intermediary that coordinates the operation of multiple opening and closing devices. It sequences their activation to ensure remaining gases are expelled before carbon dioxide collection, achieving effective gas separation through intelligent control rather than mechanical complexity
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 configuration increases the concentration of collected carbon dioxide by ensuring that remaining gases are expelled from the collector pipe before collection, thereby enhancing the purity of the collected carbon dioxide.
Implementation Method 1
carbon dioxide, which undergoes a reduction reaction, is supplied to an electrolyte working electrode
Implementation Method 2
the carbon dioxide is adsorbed at the working electrode by controlling a voltage applied between the working electrode and the counter electrode
Implementation Method 3
a substance, which undergoes an oxidation reaction, is supplied to a counter electrode
Implementation Method 4
the carbon dioxide is desorbed from the working electrode by controlling the voltage applied between the working electrode and the counter electrode
Data Source
AI summary
A controller unit is configured to control a recovery unit, an expeller unit, a collector unit and a connector unit. The controller unit is configured to place each of a first collector opening and closing device, a second collector opening and closing device and an expeller opening and closing device in a closed state and place a connector opening and closing device in an opened state and thereafter operate the expeller unit to expel a remaining gas from a collector pipe through a connector pipe and an expeller pipe to execute an exhausting process before the controller unit executes a recovering process by desorbing carbon dioxide from an electrochemical cell device and collecting the carbon dioxide at a utilization unit through the collector pipe after the desorbing of the carbon dioxide from the electrochemical cell device.