Continuous C-12 Alcohol Ester Purification for Stable High-Yield Production
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Solution Overview
Problem
Existing alcohol ester C-12 production processes suffer from batch instability, low yield, and high impurity levels due to numerous side reactions, particularly in intermittent production methods.
Innovation Solution
A continuous production system is introduced, utilizing a series of interconnected towers and reactors, including a square groove reactor, atmospheric and vacuum distillation, condensation, and rectification, to enhance reaction efficiency and purity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If intermittent production process is used, then equipment complexity is reduced, but production efficiency and yield decrease
Solution Approach 1:
The production system is segmented into multiple functional towers (reaction tower, atmospheric distillation tower, vacuum distillation tower, water washing tower, dehydration tower, light component removal tower, rectifying tower) that operate continuously in sequence. Each tower performs a specific function, allowing the overall system to maintain high productivity while managing complexity through functional decomposition.
Solution Approach 2:
The patent implements continuous production where feedstock is continuously fed into the reaction tower and products are continuously removed through various distillation and separation stages. This continuous operation eliminates idle time between batches, significantly improving production efficiency and yield compared to intermittent batch processes.
2Manufacturing precision
If conventional distillation is used, then equipment complexity is minimized, but manufacturing precision and purity are insufficient
Solution Approach 1:
Different separation techniques are applied at different stages of the process: atmospheric distillation for initial separation, vacuum distillation for heat-sensitive components, water washing for water-soluble impurities, dehydration for moisture removal, and rectification for final purification. Each stage is optimized for its specific separation task, achieving high overall purity through localized optimization.
Solution Approach 2:
The system performs preliminary separation actions in sequence before final product formation. Atmospheric distillation removes volatile components first, followed by vacuum distillation for intermediate purification, then water washing and dehydration, and finally rectification to achieve the required high purity. This staged preliminary action prevents impurity accumulation and ensures consistent product quality.
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 significantly improves the purity and yield of alcohol ester C-12, achieving over 99.0% purity and 95% yield while reducing unit consumption to 1.04, and enables an energy-efficient, environmentally friendly synthesis process.
Implementation Method 1
consecutive aldol condensation, cannazalol reaction and esterification of isobutyraldehyde
Implementation Method 2
consecutive aldol condensation, cannazalol reaction and esterification of isobutyraldehyde
Implementation Method 3
an atmospheric distillation tower, an inlet end of the atmospheric distillation tower is connected with the first outlet end of the reaction tower
Implementation Method 4
a vacuum distillation tower, an inlet end of the vacuum distillation tower is connected with the first outlet end of the atmospheric distillation tower
Implementation Method 5
a condenser, the condenser includes a first inlet end of the condenser and a second inlet end of the condenser
Implementation Method 6
an evaporator, an inlet end of the evaporator is connected with an outlet end of the dehydration tower
Data Source
AI summary
A continuous production system for alcohol ester C-12 is provided, comprising: a feedstock tank, a reaction tower, an atmospheric distillation tower, a vacuum distillation tower, a condenser, a water washing tower, a dehydration tower, an evaporator, a light component removal tower, and a rectifying tower that are all connected with each other through pipelines. The continuous production system for alcohol ester C-12 replaces the traditional intermittent production process with the advantages of good batch stability, less by-products, and high yield.