Electro-Swing Sorbent Capture Structure for Passive CO2 Collection

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Solution Overview

Problem

Existing carbon dioxide capture technologies require significant energy input and are costly and fragile, making them inefficient and unsuitable for diverse environments.

Innovation Solution

A passive collection device using electro-swing sorbent materials with a capture structure that moves between collection and release configurations, utilizing a sorbent regeneration system to capture and release CO2 without external energy input, and a durable design adaptable to various conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If conventional collection systems are used, then CO2 capture function is achieved, but energy consumption is high and cost is high

Engineering Contradiction:
Improveenergy consumptionVSAvoidCO2 capture reliability
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The device uses natural wind flow to drive the capture process without requiring external energy input. The wind-driven airflow automatically moves through the sorbent material, enabling the system to serve itself using free atmospheric energy rather than consuming electrical or thermal energy

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system changes the physical state of the sorbent material through controlled humidity levels and temperature variations to optimize CO2 capture. By adjusting these parameters naturally through environmental conditions, the system achieves reliable capture without high energy consumption

Inventive Principle:
Principle #35Parameter changes

2Reliability

If conventional collection systems are used, then CO2 capture function is achieved, but device complexity is high and fragility increases

Engineering Contradiction:
ImproveCO2 capture reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The capture device is divided into multiple independent disk units, each containing sorbent material. These segmented disks can be independently replaced and are less fragile than monolithic structures. The modular design simplifies maintenance and reduces overall system complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The sorbent material on the disks is designed to be replaceable rather than permanent. The disks can be easily removed and replaced when depleted, simplifying the system architecture compared to systems requiring complex regeneration mechanisms. This approach reduces both complexity and fragility concerns

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If conventional collection systems are used, then CO2 capture function is achieved, but adaptability to different environments is limited

Engineering Contradiction:
ImproveCO2 capture reliabilityVSAvoidenvironmental adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The device is designed to operate universally in various environmental conditions including different wind speeds, temperatures, and humidities. The passive wind-driven design works in both coastal and inland locations, making it adaptable to diverse environments without requiring location-specific modifications

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system automatically adapts to different environmental conditions by utilizing natural variations in wind, temperature, and humidity to drive the capture process. The sorbent material properties are selected to maintain effective operation across a wide range of environmental parameters, enhancing versatility

Inventive Principle:
Principle #35Parameter changes

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 captures and releases CO2 with minimal energy consumption, providing a continuous stream of enriched gas and maintaining operation across varying environmental conditions.

Implementation Method 1

a collection voltage is established across the electro-swing sorbent material... allow the sorbent material of the plurality of disks to capture atmospheric carbon dioxide

Methodology Applied
Scientific EffectElectrostatic attraction: Electrostatics

Implementation Method 2

a release voltage is established across the electro-swing sorbent material of each disk, resulting in the release of captured carbon dioxide from the electro-swing sorbent material

Methodology Applied
Scientific EffectElectrostatic repulsion: Electrostatics

Data Source

PatentUS12569798B2Device and method for passive collection of atmospheric carbon dioxide with electro-swing materials
Publication Date: 2026.03.10 THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIV OF ARIZONA
  • US12569798B2 patent drawing
  • US12569798B2 patent drawing
  • US12569798B2 patent drawing

AI summary

A system, device, and method for passive collection of atmospheric carbon dioxide is disclosed. The device includes a release chamber having a sorbent regeneration system with a power supply, and a capture structure coupled to the release chamber, having a plurality of disks coupled to and spaced along at least one collapsible support. Each disk has an electro-swing sorbent material. The capture structure is movable between collection and release configurations. The collection configuration includes the capture structure extending upward to expose the structure to an airflow and allow the sorbent to capture atmospheric carbon dioxide while a collection voltage is established across the sorbent material. The release configuration includes the disks enclosed inside the release chamber and conductively coupled to the power supply such that a release voltage is established across the electro-swing sorbent material, resulting in the release of captured carbon dioxide forming an enriched gas.