Electron Beam Hydrocarbon Conversion for Natural Gas Liquefaction
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Solution Overview
Problem
Natural gas has a low market share due to poor transportability and safety concerns, necessitating a method to convert it into transportable and storable liquid fuels.
Innovation Solution
A high-energy electron beam irradiation process is used to convert hydrocarbons, such as natural gas, into liquid fuels like gasoline or diesel by controlling temperature and pressure, utilizing additives, and selecting specific beam parameters to enhance product selectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If natural gas is used as fuel, then carbon emissions are reduced and impurities are minimized, but transportability and safety are compromised
Solution Approach 1:
The patent changes the physical state parameter of natural gas from gaseous to liquid form through electron beam irradiation. This phase transition enables the fuel to maintain the clean combustion properties of natural gas while achieving the transportability and safety characteristics of liquid fuels, thus resolving the contradiction between emission cleanliness and transportability
Solution Approach 2:
The patent replaces conventional chemical conversion methods with electron beam irradiation technology. This substitution uses high-energy electrons to induce molecular reactions that convert gaseous hydrocarbons to liquid fuels, achieving efficient conversion without the need for traditional catalysts or high-temperature processes
2Quantity of substance
If conventional irradiation methods are used on natural gas, then hydrogen is produced as major product, but liquid fuel production is limited
Solution Approach 1:
The patent changes the irradiation parameters by using high-energy electron beams (500 keV to 10 MeV) instead of conventional lower-energy irradiation sources. This parameter change shifts the reaction pathway from hydrogen production to hydrocarbon synthesis, enabling liquid fuel production while maintaining high productivity
Solution Approach 2:
The patent introduces high-energy electrons as an intermediary that mediates the conversion of natural gas molecules to liquid fuel molecules. These high-energy electrons initiate and drive the chemical reactions that form liquid hydrocarbons, serving as a bridge between the natural gas feedstock and the desired liquid fuel product
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-quality liquid fuels with improved transportability and safety, increasing the utilization efficiency of natural gas and reducing environmental impacts.
Implementation Method 1
irradiating the hydrocarbon with an electron beam to form a liquid fuel therefrom
Implementation Method 2
The electrons may generate radicals that facilitate desired reactions
Data Source
AI summary
Hydrocarbon conversion and transportation methods and apparatuses are provided. An apparatus may apply electron beam irradiation to hydrocarbons (i.e., natural gas) to convert the hydrocarbons to liquid fuel. Lower-weight hydrocarbons may be converted into medium-weight organics through a gas to liquid process (GTL). The electrons may generate radicals that facilitate desired reactions. The hydrocarbons may be temperature and pressure controlled. For example, the hydrocarbons may be at lower temperatures (e.g., cryogenic or otherwise below ambient) and/or at higher pressures (e.g., greater than standard atmospheric pressures). Temperature suppression may reduce decomposition reactions. A high energy electron beam (e.g., 500 keV or higher, such as 10 MeV) could be used for the conversion process. The hydrocarbon may be liquefied. The liquid-like, higher density lower-weight hydrocarbons may lead to radical-neutral interactions. The high-energy electrons may penetrate the liquid hydrocarbon, treating more than just the surface of the liquid hydrocarbon.