Renewable White Alkanes via Hydroprocessing for Oil Replacement
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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 PAO 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, through hydro-decarboxylation and hydro-deoxygenation, followed by hydrogenation and purification steps, to create hydrocarbons with properties similar to white mineral oils, including specific viscosities, flash points, and clarity, using catalysts like Ni, Mo/Al2O3, and Ni, Co/Al2O3.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional methods use renewable materials like vegetable oils to produce hydrocarbon fluids, then the renewable content is high, but the product quality is poor due to reactive ester groups that negatively affect lubricating properties
Solution Approach 1:
The patent extracts and removes the harmful reactive ester groups from the renewable feedstock through hydro-decarboxylation and hydro-deoxygenation processes. This extraction eliminates the problematic functional groups while retaining the renewable hydrocarbon backbone, thereby resolving the contradiction between high renewable content and poor product quality
Solution Approach 2:
The patent applies parameter changes by modifying the chemical structure of the renewable materials through controlled hydroprocessing. By changing the functional groups from reactive esters to inert hydrocarbons through hydro-decarboxylation and hydro-deoxygenation, the product quality is improved while maintaining the renewable origin
2Ease of manufacture
If renewable feedstocks are directly used without extensive processing, then the manufacturing complexity is low, but the product cannot serve as a drop-in replacement for mineral oils
Solution Approach 1:
The patent applies preliminary action by pre-processing the renewable feedstocks through polymerization before hydroprocessing. This preliminary step creates a more suitable substrate that requires less extensive subsequent processing to achieve drop-in replacement quality, thereby balancing manufacturing simplicity with product versatility
Solution Approach 2:
The patent uses polymerized intermediates as a mediator between the raw renewable feedstock and the final hydrocarbon product. This intermediary stage allows for controlled transformation of the feedstock properties, enabling the final product to meet mineral oil specifications while maintaining renewable content
3Manufacturing precision
If extensive hydroprocessing is applied to remove reactive groups, then the product purity is high, but the manufacturing complexity increases
Solution Approach 1:
The patent merges multiple processing functions into integrated hydroprocessing units that perform hydro-decarboxylation, hydro-deoxygenation, and hydrogenation in a unified process flow. This consolidation achieves high product purity while reducing the number of separate equipment units and operational steps, thereby managing manufacturing 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
The resulting White Alkanes achieve high purity and quality, meeting pharmacopoeial standards, providing a renewable alternative to mineral oils and PAO oils for applications in personal care, lubricants, and industrial processes without compromising performance.
Implementation Method 1
using catalysts like Ni, Mo/Al2O3, and Ni, Co/Al2O3
Implementation Method 2
through hydro-decarboxylation and hydro-deoxygenation, followed by hydrogenation and purification steps
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 replacement for mineral and synthetic hydrocarbon base oils, process fluids, white oils in products such as lubricants, rubber, personal care, pharma.