Dynamic Amine CO2 Absorption Kinetics Measurement System
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Solution Overview
Problem
Current carbon capture methods using aqueous amine solutions for CO2 absorption are energy-intensive due to the need for significant heating and cooling, and there is a lack of efficient methods to rapidly measure and analyze CO2 capture capacity and reaction kinetic parameters, which affects energy usage and throughput.
Innovation Solution
A system and method for dynamically measuring aqueous amine CO2 absorption kinetics parameters by thermal cycling the amine solution, monitoring CO2 absorption and desorption, and determining first-order reaction kinetics parameters, allowing for precise tailoring of CO2 processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If aqueous amine solutions are used to absorb CO2 from flue gas streams, then CO2 capture capacity is improved, but energy consumption increases due to significant heating and cooling requirements
Solution Approach 1:
The patent applies parameter changes by systematically varying temperature, pressure, and amine concentration parameters to optimize the CO2 absorption process. The system dynamically adjusts operating parameters to achieve high CO2 capture capacity while minimizing the energy required for thermal cycling, directly addressing the contradiction between capture capacity and energy consumption
Solution Approach 2:
The invention implements dynamic operation by continuously monitoring and adjusting process parameters during CO2 absorption and desorption cycles. The system adapts operating conditions in real-time to optimize the balance between CO2 capture efficiency and energy consumption, rather than using fixed operating parameters
2Measurement precision
If traditional methods are used to measure CO2 capture capacity and kinetic parameters, then measurement completeness is improved, but measurement time and productivity are worsened
Solution Approach 1:
The patent replaces traditional mechanical and manual measurement methods with automated sensor systems and computational analysis. The system uses electronic sensors, data acquisition systems, and computer-based kinetic parameter determination to rapidly and accurately measure CO2 capture capacity and kinetic parameters, simultaneously improving both measurement completeness and speed
Solution Approach 2:
The measurement system performs self-calibration and automated data analysis, eliminating the need for lengthy manual procedures. The computer system automatically processes sensor data to determine kinetic parameters, providing complete and accurate measurements at high speed without requiring extensive human intervention or time-consuming manual operations
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
This approach enables efficient and precise CO2 capture by rapidly measuring and analyzing small quantities of amine solutions, reducing energy consumption and optimizing CO2 processes for improved performance and efficiency.
Implementation Method 1
aqueous amine solutions to absorb CO2 from flue gas streams
Implementation Method 2
The forward reaction is amine plus carbon dioxide forming carbamate
Implementation Method 3
The solution is then heated, and the absorbed CO2 is released
Implementation Method 4
thermal cycling the amine solution by alternately heating and cooling the amine solution
Implementation Method 5
a thermocouple configured to measure a temperature of the amine solution
Implementation Method 6
valving a specified gas volume with a CO2 concentration to the amine solution
Data Source
AI summary
A system may comprise a heat spreader with a sample holder, an amine solution in the sample holder; a temperature sensor configured to measure a temperature of the amine solution; a heating and cooling device in the spreader, a gas flow valve connected to a gas inlet tube, wherein an end of the gas inlet tube sits below a surface level of the amine solution; and a CO2 (carbon dioxide) sensor connected to a gas outlet tube.