CO2 Adsorption Module Pressure Sensing for Vacuum Desorption Detection
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Solution Overview
Problem
Existing carbon dioxide capture systems face challenges in determining whether carbon dioxide has desorbed from the adsorbent without using a carbon dioxide sensor, particularly due to the difference in operating pressures between desorption in a vacuum and atmospheric conditions.
Innovation Solution
A carbon dioxide removal apparatus equipped with a pressure meter and a controller that determines carbon dioxide desorption based on pressure measurements, allowing for the detection of abnormalities and failures without relying on carbon dioxide sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a carbon dioxide sensor is used to measure carbon dioxide concentration during desorption, then measurement accuracy is improved, but the sensor cannot operate because it is designed for atmospheric pressure while desorption occurs in a vacuum
Solution Approach 1:
The patent introduces a pressure meter as an intermediary device to indirectly measure carbon dioxide concentration during desorption. Instead of using a carbon dioxide sensor that cannot operate in vacuum, the system measures pressure changes in the vacuum chamber, which correlate with the amount of carbon dioxide desorbed from the adsorbent. This intermediary measurement approach resolves the contradiction by enabling measurement capability under vacuum conditions.
2Measurement precision
If a carbon dioxide sensor is installed in the vacuum chamber to monitor desorption, then desorption determination is improved, but device complexity increases and power consumption increases
Solution Approach 1:
The pressure meter serves multiple functions: it measures the vacuum level, determines carbon dioxide desorption progress, and can detect abnormalities in the system. By using a single pressure meter for multiple purposes instead of installing specialized carbon dioxide sensors, the patent reduces device complexity while maintaining desorption determination capability.
3Loss of information
If a carbon dioxide sensor is used to detect desorption, then real-time monitoring is improved, but power consumption increases due to sensor operation in vacuum
Solution Approach 1:
The patent uses pressure as a proxy or copy indicator for carbon dioxide concentration. Instead of directly measuring carbon dioxide molecules with power-consuming sensors, the system measures pressure changes that copy the information about carbon dioxide desorption. This indirect measurement approach significantly reduces power consumption while maintaining real-time monitoring 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
Enables accurate determination of carbon dioxide desorption and detection of abnormalities using a simple mechanism, reducing the need for carbon dioxide sensors and optimizing power consumption.
Implementation Method 1
desorption of carbon dioxide from an adsorbent takes place in a vacuum
Implementation Method 2
The carbon dioxide adsorption module includes a pressure meter
Implementation Method 3
carbon dioxide in the atmosphere is captured to be stored in the form of gas or liquid
Data Source
AI summary
Provided is a carbon dioxide removal apparatus that enables determination of whether or not carbon dioxide has desorbed from an adsorbent without using a carbon dioxide sensor. A carbon dioxide removal apparatus includes a carbon dioxide adsorption module, a first valve provided in an intake part of the carbon dioxide adsorption module, a second valve provided in a discharge part of the carbon dioxide adsorption module, a third valve connected to the discharge part, a vacuum pump connected to the carbon dioxide adsorption module via the third valve, and a controller. The carbon dioxide adsorption module includes a pressure meter and an adsorbent, and the controller is configured to perform, based on a pressure measured by the pressure meter, at least one of determining whether carbon dioxide has desorbed from the adsorbent or detecting an abnormality.