Simulated Moving Bed Adsorption for Diamine Separation
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Solution Overview
Problem
Biological processes for producing diamines and omega-aminoacids face limitations such as a narrow range of products, low yields, and difficulties in recovering and purifying these compounds from aqueous solutions, making existing methods energy-intensive and costly.
Innovation Solution
The use of simulated moving bed (SMB) adsorptive technology to separate diamines and omega-aminoacids from multi-component mixtures, including fermentation products, by employing multiple zones with specific injection points for feed and eluent streams, and recycling streams to enhance separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional separation methods (distillation, decantation, extraction) are used to recover diamines and omega-aminoacids from fermentation broth, then separation can be achieved, but the process becomes energy-intensive and costly
Solution Approach 1:
The patent changes the physical-chemical parameters of the separation process by using adsorption chromatography instead of traditional distillation or extraction. The stationary phase adsorbent selectively binds diamines and omega-aminoacids based on their molecular characteristics, enabling separation at ambient temperatures and reducing energy consumption while achieving high purity products
Solution Approach 2:
The patent replaces mechanical separation methods (distillation, decantation) with a chemical adsorption-based separation system. The simulated moving bed chromatography apparatus uses adsorbent-st analyte interactions to achieve separation, substituting thermal and gravitational mechanical processes with a chemical affinity-based mechanism that is less energy-intensive
2Adaptability or versatility
If biological processes are used to produce diamines and omega-aminoacids, then product range can be expanded, but yields and productivity remain low
Solution Approach 1:
The patent introduces an intermediary purification step (adsorption chromatography) between fermentation and final product formulation. The stationary phase adsorbent acts as a mediator that selectively captures target compounds from complex fermentation broths, enabling high-yield recovery regardless of the specific biological pathway used, thus decoupling product range from productivity constraints
3Manufacturing precision
If multiple separation zones are used in the simulated moving bed apparatus, then separation efficiency is enhanced, but device complexity increases
Solution Approach 1:
The patent divides the continuous chromatography process into discrete separation zones within the simulated moving bed apparatus. Each zone contains specific adsorbent materials optimized for different separation tasks, allowing complex multi-component separations to be achieved through modular zone configuration. This segmentation enables high separation efficiency while maintaining manageable system complexity through standardized module design
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 method allows for the efficient and cost-effective separation of diamines and omega-aminoacids, achieving high recovery and purity levels, thereby overcoming the limitations of traditional biological production methods.
Implementation Method 1
separating at least one amine chosen from diamines and omega-aminoacids from a multi-component mixture, such as a fermentation product, using a simulated moving bed (SMB) adsorptive technology
Data Source
AI summary
The present disclosure relates to methods for separating at least one amine chosen from diamines and omega-aminoacids from a feed mixture using a simulated moving bed (SMB) adsorptive technology.