Thermal decomposition behavior of ammonium perchlorate organic waste liquid by pyrolysis coupled with nonthermal plasma

Thermal decomposition behavior of ammonium perchlorate organic waste liquid by pyrolysis coupled with nonthermal plasma has rarely been reported. This paper studies the effect of dielectric barrier discharge (DBD) plasma on ammonium perchlorate organic waste liquid. First, the ammonium perchlorate organic waste liquid was investigated by thermogravimetry, gas chromatography-mass spectrometry, and ion chromatography analyses and, then, was pyrolyzed in the two-stage fixed bed reactor with plasma discharge device. At low temperature, the existence of DBD plasma had a good contribution to the gas production of raw liquid. The degradation rate of perchlorate reached 99%. While steam to oil ratio increased, the gas yield enhanced. The gas yield of raw liquid was 3.62 mmol g⁻¹ with steam (only 0.67 mmol g⁻¹ without steam). The hydrogen concentration is about 40% at different temperatures and gas can be used as syngas to achieve low carbon emission and for energy saving.