Two-Reactor Pseudoionone Production with Segmented Hydroxide Feeding
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Solution Overview
Problem
There is a need for improvements in the efficiency and yield of pseudoionone and hydroxy pseudoionone production, as existing processes are not sufficient in achieving high yields and selectivity.
Innovation Solution
The proposed apparatus and process involve a two-reactor system where a first reactor chamber reacts a mixture of acetone, citral, and hydroxide to form pseudoionone and hydroxy pseudoionone, and a second reactor chamber further reacts the mixture with additional hydroxide to enhance pseudoionone formation, utilizing a mixing device to combine feeds and optimize reaction conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single reactor chamber is used for the reaction process, then the device complexity is low, but the yield and selectivity of pseudoionone are insufficient
Solution Approach 1:
The reaction system is divided into two separate reactor chambers: a first reactor chamber for the initial reaction of acetone, citral, and hydroxide to form pseudoionone and hydroxy pseudoionone, and a second reactor chamber for further reaction with additional hydroxide to enhance pseudoionone formation. This segmentation allows each reactor to be optimized for its specific function, thereby increasing overall yield and selectivity while maintaining manageable device complexity through modular design.
2Productivity
If additional hydroxide is added to enhance pseudoionone formation, then the yield of pseudoionone increases, but the selectivity over hydroxy pseudoionone decreases
Solution Approach 1:
The addition of hydroxide is segmented into two stages: initial hydroxide addition in the first reactor chamber to establish the reaction, and subsequent additional hydroxide addition in the second reactor chamber to drive pseudoionone formation. This staged approach allows control over the reaction progression, enabling high pseudoionone yield while managing selectivity through controlled reaction conditions in each stage.
Solution Approach 2:
The first reactor chamber performs a preliminary reaction to form initial products including pseudoionone and hydroxy pseudoionone. This preliminary action creates a controlled intermediate state that can then be further processed in the second reactor chamber with additional hydroxide, allowing the system to achieve high pseudoionone yield while managing selectivity through the controlled progression from the preliminary reaction stage.
3Productivity
If the reaction time is extended to increase conversion, then the yield improves, but the process efficiency and productivity decrease
Solution Approach 1:
The reaction process is segmented into two distinct stages occurring in parallel or sequence through two reactor chambers. The first reactor chamber performs the initial reaction for a controlled time period to form products, and the second reactor chamber continues the reaction with additional hydroxide. This segmentation allows the overall conversion to be achieved more efficiently than a single prolonged reaction, as each stage is optimized for its specific function and can be operated at optimal conditions, thereby improving productivity while reducing total reaction time.
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 results in an increased yield and selectivity of pseudoionone over hydroxy pseudoionone, making it a more efficient industrial process, particularly suitable for continuous operation.
Implementation Method 1
a mixing device positioned downstream of the first component feed inlet to the first reactor chamber and said apparatus being configured to add a second component feed to the first component feed when the second aqueous mixture has formed
Implementation Method 2
the first reactor chamber is configured to receive a first component feed containing a first aqueous mixture through an inlet, and to produce a second aqueous mixture by allowing to react for a reaction time the components of the first aqueous mixture
Implementation Method 3
the second reactor chamber is configured to receive the first and second component feeds unified in the mixing device from the first reactor chamber and to produce a third aqueous mixture from the first and second aqueous mixtures
Data Source
AI summary
The invention relates to an apparatus (1) for producing pseudoionone and hydroxy pseudoionone. It suggests an apparatus (1) comprising first and second substantially vertically oriented reactor chambers oriented such that components flow through the first and second reactor chambers in different directions, wherein the first reactor chamber (13) is configured to receive a first component feed (C1) containing a first aqueous mixture through an inlet (15), and to produce a second aqueous mixture, and wherein the apparatus (1) comprises a mixing device (17) positioned downstream of the first component feed inlet (15) and configured to add a second component feed (C2) to the first component feed (C1) when the second aqueous mixture has formed, and the second reactor chamber (23) is configured to receive the first and second component feeds unified in the mixing device (17) from the first reactor chamber (13) and to produce a third aqueous mixture from the first and second aqueous mixtures. The invention further suggests a method and a use for producing pseudoionone and hydroxy pseudoionone.