Preparation of N&O-doping and microporous carbon granules for effective CH4 adsorption and separation from low-concentration coal-bed methane

Key Points

• To develop effective granular carbon adsorbents for methane adsorption and methane/nitrogen separation.
• Synthesis of nitrogen and oxygen-doped microporous carbon granules
• Assessment of methane adsorption capacity
• Evaluation of methane/nitrogen separation efficiency
• Enhanced methane adsorption observed with doped carbon granules
• Improved separation performance compared to standard adsorbents
• Suggests potential for increased efficiency in coal-bed methane utilization