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NOx emission standards for industries have been imposed with stringent regulations in the recent decade. This research focuses on agricultural waste products being formulated as organic adsorbents, and used in conjunction with nanosecond pulsed plasma for NOx removal. The focus here is on laboratory studies on diesel engine exhaust treatment. Three different types of wastes from the groundnut and the pine nut industries were analysed and tested as adsorbents at the laboratory level. With the adsorbent alone, very little NOx removal was observed, but in conjunction with plasma, a removal efficiency of above 60% was found for groundnut husk pellets and pine cone pellets. Another formulation of groundnut waste, the groundnut husk ash had a higher NOx removal efficiency of 87% in conjunction with plasma. These wastes are being explored for NOx adsorption characteristics for the first time. The obtained results indicate that the utilization of easily decomposable organic wastes which are cheaply available, can be a viable option for industries who want to control NOx emissions.

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Nanosecond Pulse Energized Plasma with Novel Groundnut and Pine Waste for NOx Curtailment in Diesel Engine Exhaust

  • 会议论文

  • 发表日期：

    2025年

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  • Ketaka Singh,
  • Apoorva Sahu,
  • Anusuya Bhattacharyya,
  • B. S. Rajanikanth

摘要

NOx emission standards for industries have been imposed with stringent regulations in the recent decade. This research focuses on agricultural waste products being formulated as organic adsorbents, and used in conjunction with nanosecond pulsed plasma for NOx removal. The focus here is on laboratory studies on diesel engine exhaust treatment. Three different types of wastes from the groundnut and the pine nut industries were analysed and tested as adsorbents at the laboratory level. With the adsorbent alone, very little NOx removal was observed, but in conjunction with plasma, a removal efficiency of above 60% was found for groundnut husk pellets and pine cone pellets. Another formulation of groundnut waste, the groundnut husk ash had a higher NOx removal efficiency of 87% in conjunction with plasma. These wastes are being explored for NOx adsorption characteristics for the first time. The obtained results indicate that the utilization of easily decomposable organic wastes which are cheaply available, can be a viable option for industries who want to control NOx emissions.