Destruction of Low Levels of Volatile Organic Compounds in Dry Air Streams by an Electron-Beam Generated Plasma

1997 ◽  
Vol 47 (12) ◽  
pp. 1276-1283 ◽  
Author(s):  
Bradley C. Winkleman ◽  
Bradley C. Winkleman ◽  
Atul Sheth
Keyword(s):  
Electron Beam ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Dry Air ◽  
Volatile Organic ◽  
Low Levels ◽  
Air Streams

Decomposition of Volatile Organic Compounds in Air by Electron Beam and Gamma Ray Irradiation

1998 ◽  
Vol 3 (1) ◽  
Author(s):  
Teruyuki Hakoda ◽  
Mingde Yang ◽  
Koichi Hirota ◽  
Shoji Hashimoto
Keyword(s):  
Electron Beam ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Chlorine Atom ◽  
Gamma Ray ◽  
Batch Reactors ◽  
Aerosol Formation ◽  
Gaseous Compound ◽  
Volatile Organic ◽  
Gamma Ray Irradiation

AbstractRadiation decomposition and aerosol formation of various volatile organic compounds (VOCs) were examined to get information on a treatment of industrial off-gas. Model gases, air containing aromatic VOCs, chloroethenes and 1,2-dichloroethane, were sealed in batch reactors and irradiated with electron beam (EB) and gamma ray. For aromatic VOCs, G-values of decomposition in gamma ray irradiation were about 1.5 times larger than those in EB irradiation. The ratios of aerosol formation to decomposed aromatic VOCs were ranged from 30 to 66% on the basis of carbon. For chloroethenes except monochloroethylene, G-values of decomposition were 6 to 45 times larger than those of aromatic VOCs and the irradiated product was mainly gaseous compound. The G-values of decomposition in EB irradiation increased markedly with increase of chlorine atom in a molecule, while those in gamma ray irradiation were almost kept constant.

Hybrid Plasma-Catalyst System for the Removal of Trichloroethylene in Air

2006 ◽  
Vol 9 (1) ◽  
Author(s):  
R. Morent ◽  
J. Dewulf ◽  
N. Steenhaut ◽  
C. Leys ◽  
H. Van Langenhove
Keyword(s):  
Organic Compounds ◽  
Hybrid System ◽  
Atmospheric Pressure ◽  
Packed Bed ◽  
Catalyst System ◽  
Dry Air ◽  
Low Concentrations ◽  
Volatile Organic ◽  
Hybrid Plasma ◽  
Air Streams

AbstractNon-thermal plasmas are innovative and promising tools with respect to end-of-pipe treatment of waste gases. Among other features, they allow decomposition of low concentrations of volatile organic compounds in air streams at atmospheric pressure. In this paper, a plasma-catalytic hybrid system for the removal of trichloroethylene (TCE) in dry air is discussed. A pin-to-mesh electrode concept is used to obtain a positive corona discharge. A packed bed of TiO

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