Levulinic Acid Conversion in Single Reactor for Fuel Production
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Solution Overview
Problem
Current methods for producing 'drop in' hydrocarbon fuels from levulinic acid are economically and environmentally inefficient, requiring multiple processing steps, additional hydrogen facilities, and the use of noble metal catalysts, which increase capital and operation costs.
Innovation Solution
A method that converts levulinic acid or its derivatives to hydrocarbons and hydrogen in a single reactor, using a catalyst such as NiSn/SiO2, with levulinic acid, water, and formic acid under controlled temperature and pressure conditions, producing olefins and aromatics suitable for transportation fuels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional methods are used to produce hydrocarbon fuels from levulinic acid, then hydrocarbons can be produced, but multiple processing steps and additional hydrogen facilities are required, increasing capital and operation costs
Solution Approach 1:
The patent combines hydrocarbon production and hydrogen production into a single integrated process using one reactor. The reforming reaction simultaneously produces hydrocarbons (olefins and aromatics) and hydrogen gas from levulinic acid, eliminating the need for separate hydrogen production facilities and multiple processing steps, thereby reducing both capital and operational costs while maintaining product quality
2Reliability
If existing technologies are used for converting levulinic acid to hydrocarbons, then fuel products can be obtained, but noble metal catalysts are required, increasing capital costs
Solution Approach 1:
The patent replaces expensive noble metal catalysts with a non-noble metal catalyst system (such as nickel-based catalysts supported on alumina or silica). While non-noble metals may have shorter lifespan or lower activity per unit mass, they dramatically reduce capital costs for catalyst procurement and are sufficiently effective when used in the integrated reforming process, achieving the desired hydrocarbon and hydrogen production
3Quantity of substance
If additional hydrogen facilities are constructed for fuel production, then sufficient hydrogen can be supplied, but capital and operation costs increase significantly
Solution Approach 1:
The patent makes the system self-sufficient by producing hydrogen in-situ through the reforming reaction of levulinic acid within the same reactor used for hydrocarbon production. The process generates its own hydrogen supply from the feedstock itself, eliminating the need for external hydrogen production facilities and the associated capital and operational expenses, while ensuring adequate hydrogen supply for the fuel synthesis
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 approach reduces production costs by integrating hydrocarbon and hydrogen production in a single step, achieving high yields of suitable fuel products while minimizing energy input and eliminating the need for additional hydrogen facilities.
Implementation Method 1
using a catalyst such as NiSn/SiO2, with levulinic acid, water, and formic acid under controlled temperature and pressure conditions
Implementation Method 2
The reactor or contents therein are heated under conditions effective to convert the levulinic acid or derivative thereof to hydrocarbons and hydrogen
Data Source
AI summary
The present invention relates to a method of converting levulinic acid or a derivative thereof to hydrocarbons and hydrogen by providing a source of levulinic acid or a derivative thereof and converting the levulinic acid or a derivative thereof in the source to hydrocarbons and hydrogen, where converting is carried out in a single reactor. The present invention also relates to methods for producing hydrocarbons and hydrogen.