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Coke Oven Gas as a Hydrogen Source
Coke oven gas (COG) is a byproduct of the coke-making process, primarily used in the steel industry. It's a valuable source of hydrogen due to its composition, which typically includes:
• Hydrogen (H₂)
• Methane (CH₄)
• Carbon monoxide (CO)
• **Carbon dioxide (CO₂)
• **Nitrogen (N₂)
• Other impurities
Extracting Hydrogen from Coke Oven Gas
To extract hydrogen from COG, several methods can be employed:
1.Pressure Swing Adsorption (PSA):
• This method involves passing the gas mixture through a bed of adsorbent material, which selectively adsorbs impurities like CO₂, CO, and N₂, leaving behind a high-purity hydrogen stream.
2.Membrane Separation:
• A membrane separation process uses a selective membrane to separate hydrogen from other gases in the mixture. Hydrogen, being a small molecule, can pass through the membrane more easily than larger molecules.
3.Cryogenic Distillation:
• This method involves cooling the gas mixture to very low temperatures, causing the components to liquefy. The different components can then be separated based on their boiling points.
Advantages of Using Coke Oven Gas for Hydrogen Production
• Abundant Supply: As a byproduct of the steel industry, COG is readily available.
• Reduced Carbon Footprint: Utilizing COG for hydrogen production can help reduce greenhouse gas emissions compared to other hydrogen production methods.
• Energy Efficiency: The energy required to extract hydrogen from COG can be relatively low.
Hydrogen Production from Coke Oven Gas
Coke oven gas (COG) is a byproduct of the coke-making process, primarily used in the steel industry. It's a valuable source of hydrogen due to its composition, which typically includes:
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Hydrogen Production from Coke Oven Gas
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