Vibration-Assisted CO2 Capture From Liquid With Simple Gas Collection

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Solution Overview

Problem

Existing carbon dioxide capture methods, such as those described in Japanese Patent Laid-Open No. 2003-259759, require complex apparatus configurations and increased costs due to the need for nozzles and control units for depressurization, making them inefficient and costly for capturing carbon dioxide from seawater or freshwater.

Innovation Solution

A carbon dioxide capture apparatus that includes a storage unit with a partition wall, a vibration transmission unit, and an accumulation unit, utilizing depressurization and vibration to release and capture carbon dioxide from seawater or freshwater, employing the siphon principle for circulation and using a vacuum pump to capture the released gas, with optional heating to enhance the process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If depressurization method is used to capture carbon dioxide from seawater, then carbon dioxide can be extracted, but apparatus complexity and cost increase due to required nozzles and control units

Engineering Contradiction:

Improvecarbon dioxide extractionVSAvoidapparatus configuration

Core Design Contradiction:

Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent applies mechanical vibration to the liquid containing dissolved carbon dioxide to facilitate gas release. The vibration transmission unit transmits vibration to the liquid, causing carbon dioxide to separate from the liquid phase and form bubbles that rise to the surface, eliminating the need for complex depressurization equipment while achieving effective carbon dioxide extraction.

Inventive Principle:

Principle #18Mechanical vibration

2Quantity of substance

If depressurization method is used to capture carbon dioxide, then carbon dioxide can be removed from liquid, but energy consumption increases

Engineering Contradiction:

Improvecarbon dioxide removalVSAvoidenergy for capture

Core Design Contradiction:

Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

Instead of consuming energy to depressurize the system, the patent uses mechanical vibration energy to agitate the liquid and promote carbon dioxide release. The vibration transmission unit efficiently transfers vibrational energy to the liquid, causing dissolved carbon dioxide to exsolve and form bubbles that naturally rise and accumulate at the surface, significantly reducing energy consumption compared to depressurization methods.

Inventive Principle:

Principle #18Mechanical vibration

3Device complexity

If simple apparatus configuration is used, then cost is reduced, but carbon dioxide capture efficiency decreases

Engineering Contradiction:

Improveapparatus configurationVSAvoidcarbon dioxide capture efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent employs a vibration transmission unit that efficiently transfers vibrational energy to the liquid, enhancing carbon dioxide release without requiring complex apparatus. The vibration causes dissolved carbon dioxide to rapidly separate and form bubbles that rise to the surface where they are collected, maintaining high capture efficiency while keeping the apparatus configuration simple and cost-effective.

Inventive Principle:

Principle #18Mechanical vibration

Solution Approach 2:

The system utilizes the natural buoyancy of carbon dioxide bubbles to achieve separation and accumulation. Once vibration causes carbon dioxide to exsolve from the liquid, the bubbles automatically rise to the surface and accumulate in the gas collection space without requiring additional mechanical assistance, allowing the system to maintain high efficiency with minimal complex components.

Inventive Principle:

Principle #25Self-service

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 apparatus captures carbon dioxide at low cost with a simple configuration by utilizing depressurization, vibration, and heating, achieving efficient carbon dioxide extraction with reduced energy consumption and apparatus complexity.

Implementation Method 1

a vibration transmission unit configured to transmit a vibration of the storage unit or a vibration source disposed near the storage unit to the liquid stored in the storage unit

Methodology Applied

Scientific EffectVibration: Vibration

Implementation Method 2

there is known a method that extracts carbon dioxide from the above-described seawater or freshwater by depressurization

Methodology Applied

Scientific EffectDepressurization: Depressurisation

Implementation Method 3

employing the siphon principle for circulation

Methodology Applied

Scientific EffectSiphon: Syphon

Implementation Method 4

with optional heating to enhance the process

Methodology Applied

Scientific EffectHeating: Heating

Data Source

PatentUS20260077308A1Carbon dioxide capture apparatus and carbon dioxide capture method

Publication Date: 2026.03.19 CANON KK

AI summary

There is provided a carbon dioxide capture apparatus and a carbon dioxide capture method that capture carbon dioxide in liquid at low cost. A carbon dioxide capture apparatus includes a storage unit including a partition wall separating an atmosphere and an inner space, the storage unit being configured to store liquid in which carbon dioxide is dissolved in the inner space, a vibration transmission unit configured to transmit a vibration of the storage unit or a vibration source disposed near the storage unit to the liquid stored in the storage unit, and an accumulation unit configured to capture and accumulate the carbon dioxide released from the liquid with an aid of the vibration transmitted via the vibration transmission unit.