Mid-bed Purge System for Swing Adsorption Efficiency
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Solution Overview
Problem
Conventional swing adsorption processes are inefficient in purging contaminants from adsorbent beds, particularly due to time-consuming and inefficient methods, and the complexity of purging in engineered packing configurations.
Innovation Solution
The introduction of a mid-bed purge system within the adsorbent bed unit, which includes a housing with contactors having separate adsorbent materials and a mid-purge distribution zone between the first and second portions, allowing for independent fluid flow and purge gas passage, enhancing the efficiency of the purge step and reducing internal hardware complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional end-purge methods are used in swing adsorption processes, then the system structure is simple, but the purging efficiency is low and the process is time-consuming
Solution Approach 1:
The adsorbent bed is divided into multiple zones with different purge inlet positions (top, middle, bottom), allowing simultaneous multi-point purging. This segmentation enables faster contaminant removal from different bed regions while maintaining a relatively simple overall system structure through modular valve and conduit integration.
Solution Approach 2:
A mid-bed purge distribution zone is introduced as an intermediary component that receives purge gas and distributes it to multiple locations within the adsorbent bed. This mediator enables efficient multi-point purging without requiring complex individual piping for each purge point, thus improving purging efficiency while controlling system complexity.
2Reliability
If engineered packing with specific configurations is used in adsorbent beds, then the adsorption performance is enhanced, but the purging complexity increases
Solution Approach 1:
The engineered packing bed is segmented into multiple purgeable zones with dedicated inlet positions. This allows the complex engineered packing structure to be purged systematically from multiple entry points, matching the contaminant flow patterns and maintaining effective purging despite the intricate internal packing geometry.
Solution Approach 2:
Different regions of the engineered packing bed are provided with localized purge access points (top, middle, bottom zones). This local quality approach ensures that each region of the complex packing structure can be effectively purged according to its specific contaminant accumulation patterns, maintaining high adsorption performance while enabling manageable purging operations.
3Manufacturing precision
If multiple adsorbent materials are used in different portions of contactors, then the separation selectivity is improved, but the fabrication and assembly complexity increases
Solution Approach 1:
The contactor is divided into distinct portions (first and second portions) with different adsorbent materials, each optimized for specific separation tasks. This segmentation achieves high separation selectivity through material specialization while using standardized modular contactor designs that simplify fabrication and assembly procedures.
Solution Approach 2:
The contactor design with multiple purge inlet positions and distributed zones serves multiple functions: it enables effective purging of complex multi-material beds, provides flexible flow distribution, and accommodates different adsorbent material configurations. This multi-functionality achieves high separation selectivity while maintaining ease of manufacture through a versatile, standardized platform.
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 mid-bed purge system significantly enhances the efficiency of the purge process, reduces the time required for regeneration, and minimizes internal hardware and fabrication complications, leading to improved overall performance and reliability of the adsorption process.
Implementation Method 1
at least a portion of the carbon dioxide is selectively adsorbed by the adsorbent material
Implementation Method 2
When the pressure is reduced, the adsorbed component is released, or desorbed from the adsorbent material
Data Source
AI summary
Provided are apparatus and systems for performing a swing adsorption process. This swing adsorption process may involve passing fluids through an adsorbent bed unit having a contactor disposed within to separate contaminates from other target components. The process includes a purge stream that introduced into the contactor at a location between a first portion and a second portion of the contactor.