Enhancement of removal of SO2 and NOx by powdery materials in radiation treatment of exhaust gases
- 1. Japan Atomic Energy Research Inst., Takasaki, Gunma. Takasaki Radiation Chemistry Research Establishment
Description
We studied the effect of powdery silica on radiation removal of SO2 and NOx from mixtures of SO2, NOx, water vapour, oxygen and nitrogen under irradiation by electron beams of 1.5 MeV at 1200C. The SO2 and NOx concentrations decreased when powdery silica was fed without irradiation. Decrements of SO2 and NOx concentrations were markedly enhanced when powdery silica was fed together with the irradiation. The enhancement of SO2- and NOx-removal is attributed to the adsorption of SO2 and NO on the water-covered surface of powdery silica, and the effective removal of NO2 due to the reaction with water adsorbed on the surface of powdery silica. The results obtained show that the addition of powdery silica under irradiation is an effective method of enhancing the removal of SO2 and NOx. (author)
Additional details
Publishing Information
- Journal Title
- Int. J. Appl. Radiat. Isot.
- Journal Volume
- 36
- Journal Issue
- 10
- Series
- Int. J. Appl. Radiat. Isot.
- Journal Page Range
- 807-812
- ISSN
- 0020-708X
- CODEN
- IJARA
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- United Kingdom
- INIS RN
- 17008774
- Subject category
- S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; S07: ISOTOPES AND RADIATION SOURCES;
- Descriptors DEI
- CHEMISORPTION; ELECTRON BEAMS; FLUE GAS; IRRADIATION; MEV RANGE 01-10; NITROGEN; NITROGEN OXIDES; OXYGEN; POLLUTION ABATEMENT; POWDERS; PURIFICATION; SILICON OXIDES; SULFUR OXIDES; WATER VAPOR
- Descriptors DEC
- BEAMS; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; ENERGY RANGE; FLUIDS; GASEOUS WASTES; GASES; LEPTON BEAMS; MEV RANGE; NITROGEN COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PARTICLE BEAMS; SEPARATION PROCESSES; SILICON COMPOUNDS; SULFUR COMPOUNDS; VAPORS; WASTES