Basic Anion Exchanger Mixture for Continuous CO2 Adsorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current gas adsorption processes for CO2 from biogas are discontinuous, leading to high heat of adsorption, reduced adsorption capacity, and blockages in heat exchangers, hindering efficient gas adsorption and desorption.
Innovation Solution
A mixture of basic anion exchangers with 0-60% water content and 100-1000 μm particle diameter, combined with flow regulators of 1 nm to 1000 μm diameter, enables continuous gas adsorption with improved sorption properties for acidic gases, particularly CO2, by dissipating heat and preventing blockages in heat exchangers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If discontinuous gas adsorption process is used with ion exchanger in reactor, then adsorption of CO2 can be achieved, but high heat of adsorption reduces adsorption capacity and causes economic drawbacks
Solution Approach 1:
The harmful heat accumulation is extracted from the adsorption system by implementing continuous flow through heat exchangers, separating the heat dissipation function from the adsorption function. This allows the adsorption process to proceed without heat buildup reducing capacity.
Solution Approach 2:
The system transitions from static discontinuous adsorption to dynamic continuous flow adsorption. The ion exchanger continuously moves through adsorption zones and regeneration zones, maintaining optimal temperature and adsorption capacity throughout the process.
2Temperature
If continuous gas adsorption process is used with ion exchanger in heat exchanger, then heat dissipation is improved, but blockages occur in heat exchanger lines
Solution Approach 1:
The particle size of the ion exchanger is optimized to 100-1000 μm, and flow regulators with 1 nm to 1000 μm particle diameter are added. These parameter changes improve flow characteristics and prevent blockages in heat exchanger lines while maintaining effective heat dissipation.
Solution Approach 2:
Flow regulators are introduced as intermediary materials that modify the flow behavior of the ion exchanger through the heat exchanger system. These regulators prevent direct contact and potential blockages between ion exchanger particles and heat exchanger components.
3Quantity of substance
If ion exchanger with high water content (>35%) is used, then CO2 uptake ability is improved, but adsorption capacity is reduced due to heat of adsorption
Solution Approach 1:
The continuous flow process ensures that ion exchanger with high water content (>35%) maintains its CO2 uptake ability without suffering from heat accumulation. The continuous movement through heat exchangers and regeneration zones sustains high adsorption capacity throughout operation.
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 solution allows for efficient continuous adsorption of acidic gases, including CO2, with enhanced adsorption capacity and flowability, preventing heat exchanger blockages and maintaining ion exchanger performance.
Implementation Method 1
the CO2 molecules bind to the primary benzylamine functional groups
Implementation Method 2
ion exchangers can also be used to bind CO2 and other acidic gases
Implementation Method 3
the ion exchanger undergoes continuous passage through a heat exchanger during gas adsorption
Implementation Method 4
flow regulators that is different to the basic anion exchangers and has a mean particle diameter of 1 nm to 1000 μm
Data Source
AI summary
The invention relates to mixtures containing basic anion exchangers and flow regulators, the use thereof for the adsorption of acidic gases and of carbon dioxide in particular, a process for continuous gas adsorption, and heat exchangers that contain the mixtures containing basic anion exchangers and flow regulators.