Renewable White Alkanes via Hydro-Decarboxylation and Deoxygenation
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Solution Overview
Problem
Conventional methods using renewable materials do not produce high-quality hydrocarbon fluids that can serve as a 'drop-in' replacement for mineral and synthetic oils, as they often possess reactive ester groups that negatively affect the properties of the final product, making them unsuitable for lubricating and industrial applications.
Innovation Solution
A method is developed to produce White Alkanes from renewable sources, such as polymerized vegetable oils, which involves hydro-decarboxylation and hydro-deoxygenation processes, followed by hydrogenation and purification steps, to create hydrocarbons with properties similar to white mineral oils, including specific viscosities, flash points, and clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional renewable materials (vegetable oils, esters) are used to produce lubricants, then the renewable content is high, but the reactivity of ester groups negatively affects product stability and performance
Solution Approach 1:
The patent extracts and removes the reactive ester groups from the renewable feedstock through hydro-decarboxylation and hydro-deoxygenation processes. This extraction eliminates the harmful reactivity while retaining the renewable carbon backbone, converting vegetable oils into stable hydrocarbons suitable for lubricant applications.
Solution Approach 2:
The patent fundamentally changes the chemical parameters of the renewable material by transforming ester-containing compounds into pure hydrocarbons. This parameter change involves removing oxygen and carboxyl groups, thereby converting an unstable, reactive material into a stable, inert hydrocarbon with lubricant-appropriate properties.
2Manufacturing precision
If hydro-decarboxylation and hydro-deoxygenation processes are applied to renewable feedstock, then the product quality approaches mineral oil standards, but the process complexity increases
Solution Approach 1:
The patent combines multiple refining operations (hydro-decarboxylation, hydro-deoxygenation, hydrogenation, and purification) into an integrated processing system. By merging these steps into a coordinated sequence using interconnected reactors and distillation units, the patent manages process complexity while achieving high product quality.
Solution Approach 2:
The patent segments the complex refining process into distinct functional stages: hydro-decarboxylation to remove carboxyl groups, hydro-deoxygenation to remove oxygen, hydrogenation to saturate remaining unsaturation, and purification to achieve final specification. This segmentation allows each unit operation to be optimized independently while contributing to the overall high-quality product.
3Reliability
If renewable feedstock is converted to hydrocarbons through multiple processing steps, then the reactivity issues are eliminated, but the production time and energy consumption increase
Solution Approach 1:
The patent utilizes parameter changes by conducting hydro-decarboxylation and hydro-deoxygenation at elevated temperatures and pressures where reaction rates are enhanced. By operating at optimized thermal and pressure conditions, the patent accelerates the removal of reactive groups, reducing processing time and associated energy consumption while ensuring complete conversion to stable hydrocarbons.
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 resulting White Alkanes have superior quality, meeting or exceeding the standards of mineral oils and synthetic PAOs, suitable for personal care products, lubricants, and industrial applications without the reactivity issues of conventional renewable alternatives.
Implementation Method 1
The feed material is hydro-decarboxylated to produce a first intermediate
Implementation Method 2
The feed material is hydro-deoxygenated to produce a second intermediate
Implementation Method 3
The first intermediate is hydrogenated to produce a third intermediate
Data Source
AI summary
The present invention describes a method to produce high purity hydrocarbon materials and the high purity hydrocarbon materials produced from renewable sources. The produced materials are chemically similar and of equal or higher purity to from highly refined mineral oils and/or synthetic hydrocarbons. These renewable hydrocarbon materials can be used as a drop-in replacement for mineral and synthetic hydrocarbon base oils, process fluids, white oils in products such as lubricants, rubber, personal care, pharma.