Air conditioning system and method of capturing co2 using the same
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Solution Overview
Problem
Current Direct Air Capture (DAC) systems employing liquid sorbents for CO2 removal from ambient air face high regeneration energy costs due to high temperatures (>900°C), necessitating a more energy-efficient and cost-effective solution.
Innovation Solution
A system utilizing a filter device with adsorbent materials like carbon nitride, metal-organic frameworks (MOFs), and faujasite (FAU) for CO2 capture, which can be regenerated using temperature swing adsorption (TSA) or pressure swing adsorption (PSA) methods, leveraging waste heat from air conditioning systems for efficient CO2 release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If liquid sorbents are used for CO2 capture, then CO2 removal efficiency is improved, but regeneration energy cost increases significantly
Solution Approach 1:
The invention changes the temperature parameter for regeneration from high temperature (>900°C) to low temperature (70-100°C) by using solid sorbent materials with different thermal properties, thereby reducing regeneration energy cost while maintaining CO2 capture efficiency
Solution Approach 2:
The invention uses composite solid sorbent materials combining multiple components (e.g., metal oxides, organic compounds) to achieve both high CO2 capture efficiency and low regeneration energy requirements, resolving the contradiction between productivity and energy consumption
2Ease of operation
If high temperature regeneration is used, then CO2 release from sorbent is achieved, but operating cost increases
Solution Approach 1:
The invention changes the temperature parameter from high to low by selecting solid sorbent materials with appropriate adsorption characteristics, enabling CO2 release at 70-100°C and thereby reducing operating costs while maintaining ease of operation
3Productivity
If ambient air temperature is reduced, then CO2 capture efficiency is improved, but energy consumption increases
Solution Approach 1:
The invention converts the waste heat from air conditioning systems, which would otherwise be discarded, into a useful resource for regenerating the solid sorbent, thereby reducing overall energy consumption while maintaining high CO2 capture efficiency
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 system achieves significant reduction in regeneration energy costs by using solid sorbents that can regenerate at lower temperatures, enabling efficient CO2 capture and storage, with potential applications in greenhouse farming and carbon sequestration.
Implementation Method 1
an air conditioning system configured to draw the ambient air into the input port and reduce a temperature of the ambient air
Implementation Method 2
a filter device configured to capture carbon dioxide from the ambient air after the temperature of the ambient air is reduced
Implementation Method 3
the filter device is regenerated using at least one of a temperature swing adsorption (TSA) method or a pressure swing adsorption (PSA) method
Implementation Method 4
when the filter device is regenerated using the PSA method, the captured carbon dioxide in the filter device may be released using a vacuum pump
Data Source
AI summary
A system for capturing carbon dioxide from ambient air includes an input port configured to accept ambient air into the system, an air conditioning system configured to draw the ambient air into the input port and reduce a temperature of the ambient air, a filter device configured to capture carbon dioxide from the ambient air after the temperature of the ambient air is reduced by the air conditioning system, and an output port, through which the ambient air is discharged from the system after the ambient air is processed with the filter device.