Simultaneous Activation of CH4 and N2 in a Microwave Enhanced Plasma-Catalytic Hybrid Reactor
- Type: Conference Presentation
- Conference Type: AIChE Annual Meeting
- Presentation Date: November 9, 2021
- Duration: 18 minutes
- Skill Level: Intermediate
- PDHs: 0.50
- The region is usually cold at atmospheric pressure leading to methane activation without excessive coking.
- The feed gas (Ar) used to generate plasma can be continuously exposed to the waveguide leading to a stable plasma generation.
- The reactive species do not alter the power requirements, which is usually the case when the reaction occur in the waveguide region.
- The coolant flow rate can be fixed for the same reason.
The conversion of CH4 in the plasma afterglow region was reported to be 20% with C2H2 (0.5% by volume) and H2 (1.8% by volume) as major products and negligible carbon soot deposit. Cs promoted RuO2 supported on Ceria was then placed within the plasma afterglow region and heated thermally to 180 0C. A steady production of 20 ppm of NH3 was observed while C2H2 was selectively hydrogenated to C2H4 (0.01% by volume).
In conclusion, this plasma-catalytic system successfully demonstrated the direct conversion of Methane and Nitrogen to Ammonia and Ethylene. This new hybrid method increase the scope of direct and non-oxidative methane conversion, paving out new ways for stranded natural gas utilization.
|AIChE Member Credits||0.5|
|AIChE Graduate Student Members||Free|
|AIChE Undergraduate Student Members||Free|