Gas Sampling System with Sequential VOC, H2O, and CO2 Traps
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Solution Overview
Problem
Existing systems for obtaining gas samples, particularly for CO2 spectrometric analysis, are inefficient, expensive, and slow.
Innovation Solution
A system comprising a purging circuit, VOC trap, H2O trap, and CO2 trap, which can automatically control the process to efficiently concentrate and purify CO2 samples, allowing for high-volume production of pure CO2 samples within a short time frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If known systems are used for obtaining gas samples, then gas samples can be obtained, but the process is inefficient, expensive and slow
Solution Approach 1:
The system divides the gas treatment process into distinct functional segments: VOC trap for volatile organic compound removal, H2O trap for water vapor removal, and CO2 trap for carbon dioxide concentration. Each trap operates independently and can be optimized separately, enabling parallel processing and reducing overall preparation time while maintaining high efficiency
Solution Approach 2:
The system performs preliminary concentration of CO2 in the CO2 trap before analysis is required. This advance preparation allows the system to quickly deliver ready-to-analyze samples when needed, eliminating last-minute preparation delays and significantly reducing the time from sample collection to spectrometric analysis
2Productivity
If known systems are used for obtaining gas samples, then gas samples can be obtained, but the cost is high
Solution Approach 1:
The system employs regenerable traps that can be repeatedly used. After the CO2 trap captures CO2 samples, it can be regenerated and reused for subsequent sampling. This recovery and reuse capability eliminates the need for continuous replacement of consumable materials, significantly reducing operational costs while maintaining high productivity over extended periods
Solution Approach 2:
The system is designed with multi-functional traps that can handle multiple gas components (VOCs, H2O, CO2) in sequence. This universal approach allows a single integrated system to perform what would otherwise require multiple separate devices, reducing overall system cost while improving efficiency compared to using multiple individual systems
3Manufacturing precision
If known systems are used for obtaining gas samples, then gas samples can be obtained, but the purity and concentration are insufficient for optimal spectrometric analysis
Solution Approach 1:
The system achieves high CO2 purity through segmented filtration, where each trap (VOC, H2O, CO2) targets specific contaminants in sequence. This modular segmentation allows systematic removal of different impurity types, achieving spectrometric-grade purity while keeping each individual trap component relatively simple and well-understood
Solution Approach 2:
The system uses intermediate trapping stages as mediators between the raw gas stream and the final CO2 sample. The VOC trap and H2O trap serve as intermediary purification steps that protect the CO2 trap and subsequent analysis equipment from contamination, enabling high purity samples without requiring an overly complex single-step purification system
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 enables the efficient, economic, and quick production of high-volume, substantially pure CO2 samples, facilitating precise spectrometric analysis of both stable and radiogenic carbon isotopes.
Implementation Method 1
a VOC trap (4) suitable for filtering volatile organic compounds (VOC) from a gas
Implementation Method 2
a H2O trap (14, 15) suitable for removing water vapour from a gas, in particular comprising a membrane dryer (14)
Implementation Method 3
a CO2 trap (18) suitable for capturing CO2 from a gas
Implementation Method 4
provided with heating means in order to desorb previously adsorbed gases in a controlled manner
Data Source
AI summary
System for obtaining gas samples, which comprises at least one VOC trap suitable for separating volatile organic compounds from a gas to be treated, wherein the VOC trap is connected to at least one H2O trap suitable to separate H2O from the gas to be treated, wherein the H2O trap is connected to at least one CO2 trap suitable to capture CO2 from the gas to be treated, wherein the CO2 trap is connected to at least one reducer suitable to reduce nitrogen and/or sulfur oxides contained in the CO2 released by the CO2 trap.The present disclosure also relates to a method which can be carried out by such a system.