Multi-Stage Stripper System with Mechanical Vapor Recompression
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Solution Overview
Problem
Conventional distillation systems face inefficiencies in separating mixed compounds based on boiling point, leading to reduced purity and recovery rates, and high steam consumption costs due to the need for multiple stripping vessels and separate compression modules.
Innovation Solution
A multi-stage stripper system where overhead vapor is condensed and evaporated water vapor is compressed by multiple stages and supplied to at least two strippers, optimizing heat recovery and reducing steam consumption by integrating the operation of multiple stripping vessels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple stripping vessels are used to improve separation precision, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The stripping process is divided into multiple stages with different strippers operating at different temperatures and pressures. Each stripper handles specific separation tasks, achieving high separation precision through functional segmentation while maintaining manageable system complexity through modular design
Solution Approach 2:
The compressed water vapor generation system serves multiple functions: it provides heating medium for multiple strippers, enables heat recovery from overhead vapor, and maintains operational flexibility. This multi-functionality reduces the need for separate systems for each stripper, thereby reducing overall device complexity while maintaining high separation precision
2Manufacturing precision
If multiple stripping vessels operate separately then separation precision is improved, but loss of energy increases
Solution Approach 1:
Multiple strippers are integrated into a coordinated system where overhead vapor from one stripper is condensed and reused as heating medium for other strippers. This merging of functions creates a heat recovery network that significantly reduces steam consumption while maintaining the separation precision benefits of multiple vessels
Solution Approach 2:
Overhead vapor that would otherwise be discarded is recovered through condensation and transformed into a valuable heating resource. The compressed water vapor generated from this recovered vapor is then distributed to multiple strippers, converting waste energy into useful thermal energy and reducing overall steam consumption
3Ease of operation
If separate compression modules are used for each stripper then ease of operation is improved, but device complexity increases
Solution Approach 1:
A single compressed water vapor generation system serves multiple strippers simultaneously, providing operational flexibility through centralized control while reducing device complexity by eliminating the need for separate compression modules for each stripper. The system maintains ease of operation through coordinated control mechanisms
4Device complexity
If conventional distillation process is used then simplicity is maintained, but loss of time increases
Solution Approach 1:
The system implements continuous heat recovery and reuse mechanisms where overhead vapor is continuously condensed and transformed into heating medium for ongoing stripping operations. This continuous circulation of thermal energy accelerates the distillation process while maintaining operational simplicity through integrated 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 approach enhances heat recovery rates and reduces the time and cost of the distillation process by allowing simultaneous operation of multiple strippers with reduced steam input, improving separation efficiency and material recovery.
Implementation Method 1
a condense-evaporator configured to condense the overhead vapor that passed through the stripper module and to evaporate water supplied from a source of water supply by heat exchanging the overhead vapor with the water
Implementation Method 2
a condense-evaporator configured to condense the overhead vapor that passed through the stripper module and to evaporate water supplied from a source of water supply by heat exchanging the overhead vapor with the water
Implementation Method 3
a condense-evaporator configured to condense the overhead vapor that passed through the stripper module and to evaporate water supplied from a source of water supply by heat exchanging the overhead vapor with the water
Implementation Method 4
a mechanical vapor recompression module (MVR) that compresses water vapor evaporated in the condense-evaporator by multi-stages
Implementation Method 5
the distillation system configured to separate mixed material existing in a feedstock material into high volatile components and low volatile components based on difference of boiling point
Implementation Method 6
a stripper module including a plurality of strippers, and configured to receive the feedstock material, evaporate and discharge the high volatile component as overhead vapor
Data Source
AI summary
The present invention relates to a distillation system using multi-stage stripper, the distillation system being configured to separate mixed material into high volatile components and low volatile components based on difference of boiling point, the system comprising: a stripper module including a plurality of strippers, and configured to receive the feedstock material, evaporate and discharge the high volatile component as overhead vapor and to separate the low volatile component as un-distilled; a condense-evaporator configured to condense the overhead vapor and to evaporate water; and a mechanical vapor recompression module that compresses water vapor evaporated in the condense-evaporator by multi-stages.