Stearic Acid Preparation via Deodorization and Hydrogenation
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Solution Overview
Problem
Current methods for producing stearic acid are inefficient and often require hydrolysis, which can be costly and wasteful, particularly when using animal and plant sources, and do not effectively utilize co-products from other processes.
Innovation Solution
A process involving deodorization, distillation, and hydrogenation of fatty acids from animal and plant sources, including co-products, to produce stearic acid and palmitic acid, which can also include the use of tallow and vegetable fats, allowing for the conversion of unsaturated fatty acids into saturated stearic acid without the need for hydrolysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If hydrolysis is used to produce stearic acid from animal and plant sources, then fatty acids can be obtained, but the process becomes costly and wasteful
Solution Approach 1:
The patent extracts and utilizes co-products (fatty acids) directly from existing animal and plant processing operations without performing hydrolysis. By taking out the fatty acids that are already present in the co-products rather than breaking down triglycerides through hydrolysis, the process eliminates the costly and wasteful hydrolysis step while still obtaining the desired fatty acid quantity.
Solution Approach 2:
The patent recovers valuable fatty acids from co-products that would otherwise be discarded or underutilized. Instead of treating co-products as waste materials requiring hydrolysis for fatty acid extraction, the process directly recovers and purifies the fatty acids already present, transforming a waste stream into a valuable resource without the need for expensive hydrolysis equipment and chemicals.
2Quantity of substance
If traditional methods are used to produce stearic acid, then fatty acid mixtures can be obtained, but co-products from other processes are not effectively utilized
Solution Approach 1:
The patent applies multi-functionality by utilizing co-products from multiple different animal and plant processing sources for the same fatty acid production purpose. The process can accept co-products from various sources (tallow, vegetable oils, etc.) and convert them all into stearic acid and palmitic acid, making the process highly adaptable to different feedstock sources and effectively utilizing materials that would otherwise go to waste.
Solution Approach 2:
The patent enables co-products to serve themselves by directly converting them into valuable fatty acids through simple distillation and hydrogenation processes. The co-products inherently contain the fatty acids needed, and the process merely separates and saturates them without requiring complex conversion steps, allowing the material to essentially self-convert from a low-value co-product to a high-value fatty acid product.
3Manufacturing precision
If deodorization and distillation are performed on fat, then concentrated fatty acids can be obtained, but additional processing steps are required
Solution Approach 1:
The patent merges multiple processing functions into a streamlined sequence. By combining deodorization, distillation, and hydrogenation into a coordinated process flow where each step builds on the previous one, the overall complexity is reduced compared to traditional methods that perform these operations separately on crude materials. The merging of these steps allows concentrated fatty acids to be obtained efficiently with high purity while minimizing the number of separate equipment units and operational procedures needed.
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 method efficiently produces high-purity stearic acid and palmitic acid, reducing waste and costs by utilizing co-products and avoiding the hydrolysis step, while also enabling the production of fully hydrogenated fatty acids, thus enhancing the sustainability and economic viability of the process.
Implementation Method 1
deodorizing and distilling a fat; concentrating fatty acids of the fat
Implementation Method 2
hydrogenating the fatty acid to provide stearic acid; conversion of unsaturated fatty acids into saturated stearic acid
Data Source
AI summary
One or more techniques are disclosed for a process of preparing stearic acid from animal and/or plant sources may comprise: 1) deodorizing and distilling a fat; 2) concentrating fatty acids of the fat; and 3) hydrogenating the fatty acid to provide stearic acid. The process may include the use of co-products from plant and/or animal sources. The process may also include distilling the stearic acid to provide palmitic acid and/or fully hydrogenated fatty acid. Tallow fatty acid, vegetable fatty acid, stearic acid, and palmitic acid prepared from the process described are also disclosed.