Diesel particulate matter and NO  x   removals using a pulsed corona surface discharge | Zendy

Yao S. | Zendy; Okumoto M. | Zendy; Yashima T. | Zendy; Shimogami J. | Zendy; Madokoro K. | Zendy; Suzuki E. | Zendy

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Diesel particulate matter and NO x removals using a pulsed corona surface discharge

Author(s) -

Yao S.,

Okumoto M.,

Yashima T.,

Shimogami J.,

Madokoro K.,

Suzuki E.

Publication year - 2004

Publication title -

aiche journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.958

H-Index - 167

eISSN - 1547-5905

pISSN - 0001-1541

DOI - 10.1002/aic.10066

Subject(s) - corona discharge , analytical chemistry (journal) , dielectric barrier discharge , particulates , materials science , anode , cathode , adsorption , nonthermal plasma , atmospheric pressure , desorption , chemistry , dielectric , electrode , plasma , chromatography , optoelectronics , physics , organic chemistry , quantum mechanics , oceanography , geology

A pulsed corona surface discharge (PCSD) system was established for particulate matter (PM) and NO x removals from a diesel engine. The PCSD was carried out with a dielectric barrier discharge (DBD) reactor and a pulse power supply at atmospheric pressure and room temperature. The DBD reactor consisted mainly of an alumina (Al 2 O 3 ) tube and a stainless steel rod (cathode) inserted in the alumina tube, and an aluminum coil (anode) wound on the outside surface of the Al 2 O 3 tube. Pulse voltage was applied to the outside Al coil and stainless steel rod. PM was removed at a rate of 89% at maximum with 40% NO x removal. Relations of pulse voltage and frequency to PM and NO x removals were investigated. PM was oxidized by NO 2 and other kinds of active oxygen species, such as O and O 3 from plasma discharges. A surface adsorption/desorption and PM oxidation model of PM removal was established. The kinetic equations and their constants were given. © 2004 American Institute of Chemical Engineers AIChE J, 50:715–721, 2004

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