Terpene Blend Distillation with Catalyst Removal for Nootkatol Stability
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Solution Overview
Problem
The conversion of nootkatol to nootkatene during fractional distillation results in reduced nootkatol levels and increased nootkatene levels in terpene blends, affecting the taste profile and organoleptic properties of nootkatone oil blends, leading to rejection by customers due to non-compliance with market expectations.
Innovation Solution
A method involving the separation or neutralization of compounds that catalyze the conversion of nootkatol to nootkatene, followed by fractional distillation, to maintain desired nootkatol content and minimize nootkatene formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If fractional distillation is carried out on raw material terpene blend containing nootkatol, then purification and concentration of nootkatol is achieved, but nootkatol converts to nootkatene due to catalysis by fatty acids and high boiling point impurities
Solution Approach 1:
The patent applies preliminary action by removing catalytic impurities (fatty acids and high boiling point compounds) from the raw material terpene blend before conducting fractional distillation. This pre-treatment step prevents the formation of nootkatene during the subsequent heating process, ensuring that nootkatol remains stable and does not convert to unwanted byproducts. The preliminary removal of catalysts eliminates the root cause of the problem before the main purification process begins.
Solution Approach 2:
The patent extracts and removes the harmful catalytic components (fatty acids and high boiling point impurities) from the terpene blend before distillation. By separating and eliminating these catalysts in a preliminary step, the system prevents them from causing unwanted chemical reactions during the heating process, thereby maintaining nootkatol stability while still achieving purification through subsequent fractional distillation.
2Manufacturing precision
If raw material terpene blend is heated at elevated temperatures during fractional distillation, then separation and purification of components is achieved, but nootkatol converts to nootkatene due to thermal catalysis
Solution Approach 1:
The patent removes catalytic impurities before the thermal distillation process, so that when heating occurs, there are no catalysts present to promote unwanted side reactions. This preliminary cleanup allows the system to apply elevated temperatures for effective separation without suffering from nootkatol degradation or conversion to nootkatene, thus maintaining both separation efficiency and substance retention.
Solution Approach 2:
The patent converts the harmful effect of thermal catalysis into a beneficial process by first removing the catalysts, then using controlled heating for separation. The heat that would otherwise cause unwanted reactions is now used purely for beneficial separation purposes, as the catalytic pathway has been eliminated in the preliminary treatment step.
3Productivity
If nootkatene forms during batch fractional distillation, then continuous contamination of distillate fractions occurs, but customer specifications require little or no nootkatene
Solution Approach 1:
The patent prevents nootkatene formation from occurring in the first place by removing catalysts before distillation begins. This proactive approach ensures that the distillation process runs smoothly without continuous contamination of distillate fractions, maintaining both productivity and compliance with customer specifications that require little or no nootkatene presence.
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 method effectively retains high nootkatol levels and minimizes nootkatene formation, ensuring terpene blends meet market standards and maintain desired taste profiles.
Implementation Method 1
fatty acids and other high boiling point impurities present in the raw material terpene blend to catalyze the undesired reaction of nootkatol to nootkatene
Implementation Method 2
Fractional distillation must be carried out on a raw material terpene blend containing nootkatol to prepare a final commercial nootkatone oil blend
Data Source
AI summary
The conversion of nootkatol to nootkatene in a terpene blend is mitigated or prevented by substantially or completely separating the nootkatols such as α-nootkatol from compounds present in the terpene blend that catalyze the chemical reaction of nootkatol to nootkatene, and/or by at least partially neutralizing the compounds present in the terpene blend that catalyze the chemical reaction of nootkatol to nootkatene. Methods of preparing terpene blends, terpene blends, flavour compositions containing the terpene blends, beverages and foodstuffs containing the flavour compositions, fragrance compositions containing the terpene blends, and fragranced products containing the fragrance composition are also disclosed.