Multi-Gas Adsorption Measurement With Dual Transducers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for measuring gas uptake in sorbent materials are time-consuming, labor-intensive, and lack accuracy, particularly in characterizing mixed-gas adsorption, which hampers the screening of sorbents for carbon capture and sequestration technologies.
Innovation Solution
A device and method using a first and second transducer to measure the uptake of gases in a gas mixture, with a gravimetric transducer for mass uptake and a capacitive transducer for capacitance changes, allowing for rapid and accurate determination of gas uptake in a material exposed to mixed gases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional single-component adsorption measurement methods are used, then measurement accuracy for individual gases is improved, but measurement time and labor intensity increase significantly
Solution Approach 1:
The patent segments the measurement function by using two different transducers: a gravimetric transducer for measuring mass uptake and a volumetric transducer for measuring volume changes. This segmentation allows simultaneous measurement of different gas components through their distinct physical properties, resolving the contradiction between measurement accuracy and time consumption by parallelizing the measurement process.
Solution Approach 2:
The patent transitions from single-dimension measurement to multi-dimensional measurement by combining gravimetric (mass-based) and volumetric (volume-based) measurement dimensions. This dimensional expansion enables the system to distinguish between different gas components (e.g., CO2 and H2O) based on their different responses in both dimensions, achieving both high accuracy and rapid mixed-gas adsorption measurement.
2Reliability
If standardized single-component measurement instruments are used, then measurement reliability is improved, but ability to characterize mixed-gas adsorption deteriorates
Solution Approach 1:
The patent creates a universal measurement system that can handle both single-component and mixed-gas adsorption measurements. The dual-transducer configuration provides multi-functionality: the gravimetric transducer measures total mass uptake while the volumetric transducer measures volume changes, allowing the system to adaptively characterize various gas compositions and conditions, thus improving both reliability and versatility.
Solution Approach 2:
The patent introduces a control system as an intermediary that processes signals from both transducers and applies correction algorithms. This intermediary component enables the system to reliably interpret complex mixed-gas adsorption data by combining information from both measurement dimensions, maintaining measurement reliability while enhancing mixed-gas characterization capability.
3Productivity
If rapid screening methods are implemented, then productivity is improved, but measurement precision deteriorates
Solution Approach 1:
The patent implements continuous simultaneous measurement using parallel transducer channels that operate continuously during the adsorption process. Both gravimetric and volumetric measurements occur concurrently throughout the entire adsorption cycle, enabling rapid data collection without sacrificing precision. This continuous dual-channel measurement allows quick screening of multiple sorbents while maintaining high measurement accuracy through real-time correction algorithms.
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 quick and precise measurement of gas uptake in sorbent materials, facilitating efficient screening and optimization of carbon capture technologies by distinguishing between different gases and improving the accuracy of sorbent selection.
Implementation Method 1
measuring, using the first transducer, a first set of signals representing a first characteristic of the gas in the gas mixture adsorbing or absorbing onto a first thin film formed from the material
Implementation Method 2
the second transducer is a capacitive transducer and the second set of signals represents a change in capacitance induced at least by adsorption or absorption of a polar component from the gas mixture onto the second thin film
Implementation Method 3
measuring, using the first transducer, a first set of signals representing a first characteristic of the gas in the gas mixture adsorbing or absorbing onto a first thin film
Data Source
AI summary
An uptake measurement system for determining analyte uptake in a material is described. The uptake measurement system includes a test chamber where an uptake sensor measures the uptake of one or more gases under testing conditions. The uptake sensor includes at least two transducers, each measuring distinct characteristics of the analyte as it is adsorbed or absorbed onto the material. Based on the measurements from both transducers and the testing conditions, the uptake of the gas by the material is calculated.