CO2 Purification Train Using Drying and PSA for 99.5% Purity
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Solution Overview
Problem
Existing carbon dioxide purification systems fail to effectively obtain high-purity carbon dioxide gas from waste gases produced by generators, leading to increased greenhouse gas emissions and environmental pollution.
Innovation Solution
A carbon dioxide purification system comprising a water removal unit with drying devices and a purification unit with pressure swing adsorption devices filled with activated carbon molecular sieves and aluminosilicate molecular sieves, along with metal plating layers, to achieve a carbon dioxide gas purity of over 99.5%, effectively removing water vapor, carbon monoxide, and organic pollutants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional purification methods are used, then the purification process can be simplified, but the carbon dioxide purity cannot reach over 99.5%
Solution Approach 1:
The purification system is divided into multiple pressure swing adsorption devices connected in series, with each device containing specific adsorbents for removing different impurities. This segmentation allows the system to achieve high purity through staged purification while maintaining operational simplicity through standardized device modules.
Solution Approach 2:
The system uses composite adsorbent materials including activated carbon molecular sieves with metal plating layers and aluminosilicate molecular sieves with metal plating layers. These composite materials provide enhanced selectivity and capacity for removing specific impurities, enabling the system to achieve over 99.5% carbon dioxide purity.
2Productivity
If water vapor is not removed before purification, then the purification process can be shortened, but the adsorbents will be contaminated and purification efficiency will decrease
Solution Approach 1:
The system includes a water removal unit that removes water vapor from the waste gas before the gas enters the pressure swing adsorption devices. This preliminary action prevents water contamination of the adsorbents, maintaining their purification efficiency and extending their service life without requiring complex protective measures later in the process.
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 achieves high-purity carbon dioxide gas suitable for cell culture procedures, reducing carbon emissions and environmental impact by efficiently purifying carbon dioxide gas to a concentration of over 99.5%, making it suitable for direct use in cell culture systems.
Implementation Method 1
a plurality of pressure swing adsorption devices disposed and connected in series with each other, the pressure swing adsorption devices being used to purify carbon dioxide gas from the dry gas mixture
Implementation Method 2
Each pressure swing adsorption device is filled with a first adsorbent and a second adsorbent
Implementation Method 3
The first adsorbent has an activated carbon molecular sieve and a first metal plating layer plated on the surface of the activated carbon molecular sieve, and the second adsorbent has an aluminosilicate molecular sieve
Implementation Method 4
a first metal plating layer plated on the surface of the activated carbon molecular sieve, and the second adsorbent has an aluminosilicate molecular sieve and a second metal plating layer plated on the surface of the aluminosilicate molecular sieve
Data Source
AI summary
A carbon dioxide purification system for the treatment of a waste gas produced by a generator includes a water removal unit having at least one drying device, and a purification unit having a plurality of pressure swing adsorption devices disposed and connected in series with each other. The at least one drying device is used to reduce water vapor in the waste gas and to form a dry gas mixture having carbon dioxide gas. The pressure swing adsorption devices are used to purify carbon dioxide gas from the dry gas mixture, so as to obtain a gas product containing carbon dioxide gas with a purity of more than 99.5%.