1：Experimental Design and Method Selection:

A packed-bed dielectric barrier discharge (PBDBD) plasma reactor was used to decompose ethylene gas. The method involved generating plasma with a pulse switching power supply and using Ag nanoparticle-loaded zeolite as a catalyst to enhance removal efficiency and reduce by-products.

2：Sample Selection and Data Sources:

Simulated gas mixture of ethylene (200 ppm), oxygen (10%), carbon dioxide (10%), and nitrogen (balance) was used to mimic transport container conditions. Gas samples were analyzed post-treatment.

3：List of Experimental Equipment and Materials:

Reactor with glass tube, aluminum tape electrode, stainless steel rod, pellets (glass, zeolite, Ag-zeolite), pulse power supply, mass flow controllers, digital oscilloscope, high-voltage probe, voltage probe, ozone monitor, gas detector tubes, FT-IR spectrophotometer.

4：Experimental Procedures and Operational Workflow:

Gas was flowed at 5 L/min into the reactor, plasma was generated by applying voltage, and concentrations of ethylene, ozone, and CO were measured. V-Q Lissajous figures were used to calculate energy input.

5：Data Analysis Methods:

Concentrations were measured using detectors and FT-IR; energy density was calculated from V-Q diagrams; statistical analysis of removal efficiencies was performed.