Acetylene Production from Methane via Calcium Carbide Intermediate
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Solution Overview
Problem
Current methods for processing organic waste to generate electricity from carbon-containing gases like methane, hydrogen, and carbon monoxide are economically unattractive and contribute to atmospheric carbon, making it detrimental to the climate, while there is a high demand for acetylene and ethylene that could be sourced from organic matter decomposition.
Innovation Solution
A method and system for producing acetylene or ethylene using a catalyst system with transition metal oxides and a catalyst support, reacting methane with calcium oxide to form calcium carbide, which then reacts with water to produce acetylene, utilizing waste materials like sewage sludge and combustibles to capture and reuse atmospheric carbon.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If organic waste is processed to generate electricity from carbon-containing gases, then energy is recovered, but the process is economically unattractive and contributes to atmospheric carbon
Solution Approach 1:
The invention changes the product parameter from electricity to chemical commodities (acetylene/ethylene), transforming an economically unattractive energy recovery process into a valuable chemical production process that generates higher-value products
2Device complexity
If carbon-containing gases are released to the atmosphere, then the process is simple, but it increases atmospheric carbon content and is detrimental to climate
Solution Approach 1:
The invention converts harmful carbon-containing gases (CO, CO2, CH4) into valuable chemical products (acetylene, ethylene), transforming an environmental hazard into an economic and environmental benefit through carbon capture and utilization
3Productivity
If acetylene or ethylene is produced from organic matter decomposition, then demand is met, but infrastructure costs are high
Solution Approach 1:
The invention segments the production process into modular units (gasification reactor, catalytic converter, product separation) that can be deployed at decentralized locations, reducing centralized infrastructure requirements and enabling local production
Solution Approach 2:
The process uses waste organic matter as feedstock, eliminating the need for expensive external feedstock procurement and processing infrastructure, making the system self-sufficient and reducing overall infrastructure costs
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 efficiently produces acetylene or ethylene, captures and reuses carbon from organic waste, reducing environmental impact and providing a cost-effective alternative to traditional energy generation, with the system being capable of decentralized operation and reducing infrastructure costs.
Implementation Method 1
treating the methane supply with the catalyst system for producing a first reactant
Implementation Method 2
reacting the first reactant with the second reactant for producing an intermediate, wherein the intermediate is calcium carbide (CaC2)
Implementation Method 3
reacting the first reactant with the second reactant for producing an intermediate, wherein the intermediate is calcium carbide (CaC2)
Data Source
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AI summary
The present invention is concerned with a method of production of acetylene or ethylene. The method has the steps of providing supplies of hydrogen, water, carbon monoxide, carbon dioxide, and methane, respectively, providing a catalyst system having firstly a catalyst selected from group VIII transition metal oxides, and secondly a catalyst support, treating the methane supply with the catalyst system for producing a first reactant, providing a second reactant, and reacting the first reactant with the second reactant for producing an intermediate, wherein the intermediate is calcium carbide (CaC2).