Sebacic Acid Production via Linoleic Acid Hydration and Pyrolysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for producing sebacic acid rely on ricinoleic acid from castor oil, which is not easily accessible, and there is a need for a novel route using alternative educts due to increasing demand.
Innovation Solution
A chemo-enzymatic process involving the reaction of linoleic acid with water catalyzed by oleate-hydratase to form 10-hydroxy-12-octadecenoic acid, followed by pyrolysis to produce 1-octene and 10-oxo-decanoic acid, and subsequent oxidation to sebacic acid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If ricinoleic acid from castor oil is used as the starting material for sebacic acid production, then the production route is well-established, but the accessibility of the raw material is limited
Solution Approach 1:
The patent changes the starting material parameter from ricinoleic acid to linoleic acid, which is more accessible from common vegetable oils. This parameter change maintains product quality while improving raw material accessibility and expanding the source base for sebacic acid production
Solution Approach 2:
The patent makes the production process more universal by using linoleic acid which can be obtained from multiple vegetable oil sources (sunflower oil, safflower oil, grape seed oil, etc.), thereby expanding the versatility of raw material selection while maintaining an established production approach
2Device complexity
If traditional chemical methods are used for sebacic acid production, then the process is simple, but the environmental friendliness and selectivity are poor
Solution Approach 1:
The patent substitutes chemical catalysis with enzymatic catalysis (oleate hydratase enzyme), replacing traditional chemical methods with a biological system. This substitution maintains process feasibility while significantly reducing environmental harm, improving selectivity, and avoiding harsh chemical reagents
Solution Approach 2:
The patent introduces an enzyme (oleate hydratase) as an intermediary catalyst that mediates the conversion of linoleic acid to 10-hydroxy-12-octadecenoic acid. This enzymatic intermediary provides high selectivity and operates under mild conditions, reducing harmful byproducts while maintaining process efficiency
3Productivity
If high pressure and high temperature are applied for alkaline cleavage, then the reaction proceeds efficiently, but the energy consumption and equipment requirements increase
Solution Approach 1:
The patent replaces high-energy chemical cleavage methods with enzymatic hydration followed by pyrolysis. The enzymatic step operates at mild conditions, and the subsequent pyrolysis step is more energy-efficient than high-pressure alkaline cleavage, overall reducing energy consumption while maintaining productivity
Solution Approach 2:
The patent changes the reaction parameters from high pressure and high temperature alkaline cleavage to enzymatic hydration at mild conditions followed by controlled pyrolysis. This parameter change maintains efficient product formation while significantly reducing energy requirements and equipment complexity
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 process provides a novel and efficient route to sebacic acid production using readily accessible linoleic acid, improving yield and accessibility of the product.
Implementation Method 1
reacting in a first step (i) linoleic acid with water catalyzed by an oleate-hydratase to form 10-hydroxy-12-octadecenoic acid
Implementation Method 2
in a second step (ii) pyrolysing the 10-hydroxy-12-octadecenoic acid to 1-octene and 10-oxo-decanoic acid
Implementation Method 3
in a third step(iii) oxidizing the 10-oxo-decanoic acid to sebacic acid
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3
AI summary
A process for preparing sebacic acid by reacting in a first step (i) linoleic acid with water catalyzed by an oleate hydratase to form10-hydroxy-12-octadecenoic acid, in a second step (ii) pyrolysing the 10-hydroxy-12-octadecenoic acid to 1-octene and 10-oxo-decanoic acid and in a third step (iii) oxidizing the 10-oxo-decanoic acid to sebacic acid.