Radial SMB Adsorption Chamber Height Design
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Solution Overview
Problem
Radial SMB separation technologies face efficiency and purity issues due to solid adsorbent compaction, which creates flow space devoid of adsorbents, and the use of fluidtight textiles in reaction devices can lead to fluid stagnation and hydrodynamic disruptions in SMB systems.
Innovation Solution
A radial device with a cylindrical vessel featuring an adsorption chamber with a charging height greater than the distribution and collecting ducts, along with a washing solvent inlet to maintain adsorbent bed height and prevent compaction-induced performance drops, utilizing a distribution and collecting grid system to ensure consistent fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a fluidtight textile is used to prevent compaction in radial reaction devices, then adsorbent bed stability is improved, but fluid distribution is disrupted and dead volumes are created in radial SMB separation devices
Solution Approach 1:
The invention removes the fluidtight textile from the radial SMB separation device, extracting the harmful element that causes fluid stagnation and dead volume while preserving the beneficial compaction prevention mechanism through controlled bed height maintenance
Solution Approach 2:
The invention introduces an intermediary mechanism (controlled bed height maintenance through charging height design) that mediates between the need for adsorbent bed stability and the need for proper fluid distribution, avoiding the extreme solution of fluidtight textiles
2Device complexity
If adsorbent beds are allowed to compact over time, then device simplicity is maintained, but separation efficiency and product purity are reduced
Solution Approach 1:
The invention performs preliminary action by designing the adsorption chamber with a charging height greater than the distribution and collecting ducts from the outset, preventing compaction-induced performance loss before it occurs rather than reacting to it later
Solution Approach 2:
The invention changes the parameter of adsorbent bed height (charging height) to be greater than the duct heights, creating a buffer zone that compensates for compaction over time and maintains separation efficiency without increasing device complexity
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 maintains high separation performance by preventing adsorbent compaction and fluid stagnation, reducing productivity loss and maintaining purity and yield in SMB separation processes.
Implementation Method 1
a washing solvent inlet provided in the upper wall, wherein the adsorption chamber has a charging height which is greater than the height of the distribution duct and the height of the collecting duct
Implementation Method 2
at least one distribution grid positioned between the distribution duct and the adsorption chamber, and at least one collecting grid positioned between the collecting duct and the adsorption chamber
Data Source
AI summary
The present invention relates to a device, a column and a method for radial separation or reaction, wherein the adsorption chamber (9) has a charging height (H3) greater than the height of the distribution duct (6) and the height of the collecting duct (8), and the upper wall (2) of the adsorption chamber (9) comprises at least one inlet (16) for washing solvent.