Related Experiment Video
Updated: Jun 26, 2026

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
Nitrogen dioxide formation in the gliding arc discharge-assisted decomposition of volatile organic compounds
Zheng Bo1, Jianhua Yan, Xiaodong Li
1State Key Laboratory of Cleaning Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, People's Republic of China. zjuzhengbo@gmail.com
Abstract:
To apply gliding arc discharge (GAD) plasma processing to volatile organic compounds (VOCs) emission control, the formation of NO(2) as an undesired byproduct needs to be addressed. Comparative results of effluent temperature and product concentrations between experiment and thermodynamic equilibrium calculation show that the NO(2) formation in dry air GAD is totally out of thermodynamic equilibrium. Meanwhile, obvious NO (A(2)Sigma+)) and N(2)(+) (B(2)Sigma(u)(+)) are detected as the major reactive species in the dry air GAD plasma region. These results suggest that the thermal (or Zeldovich) NO(x) formation mechanism is not significant in GAD system, while the energy level and the density of electrons in the plasma region will severely influence the NO(2) formation. The presence of 500 ppm VOCs in the feed gases shows a limiting influence on the NO(2) formation, which is in the order of aromatic hydrocarbon (C(6)H(6) and C(7)H(8))>straight-chain hydrocarbon (C(4)H(10) and C(6)H(14))>halogenated hydrocarbon (CCl(4)). The influences of VOCs chemical structure, supply voltage, feed gas humidity, and reactor geometry on NO(2) formation are investigated, and the results correspond to above mechanism analysis. Based on the above, the possible pathways of the inhibition of NO(2) formation in GAD-assisted VOCs decomposition process are discussed.
More Related Videos
Related Concept Videos
Overview of Nitrogen Metabolism
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this nitrogen...
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Mechanism
1° Amines to Diazonium or Aryldiazonium Salts: Diazotization with NaNO2 Overview
The nitrous acid is unstable. Hence, it is formed in situ from a solution of sodium nitrite and cold aqueous acids such as hydrochloric or sulfuric acid. In an acidic solution, the –OH group of nitrous acid undergoes protonation to give oxonium ion, followed by water loss...
Microbes and the Nitrogen Cycle
Microbes and Climate Change
Inorganic Nitrogen Assimilation

