Numerical Analysis of Repetitive Pulsed-discharge DeNOx Process with Ammonia Injection

Hironobu Kusunoki, Kazuo Onda, Kohei Ito

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Due to the relatively high performance and the compactness, the pulsed-discharge deNOx process is expected to be one of the next generation technologies to suppress air pollution. However, sufficient guide lines for the optimum operation of pulsed-discharge deNOx process has not been presented. In this study, we have simulated numerically the process applied by several hundreds pulsed-voltages. and investigated the effects of by-products and ammonia injuction on the deNOx performance. In a case for the no ammonia injection, both of the NxOy removal efficiency and the electric energy consumption to remove XxOychange with increasing repetitive pulse number, because electrons produced by the discharge recombine with accumulated by-products, such as of H3O+(H2O)2. followed by decreasing radical concentration and oxidative/reductive removal reactions. In a case for ammonia injection, the removal efficiency increases and the electricity consumption decreases with increasing the ammonia concentration, because removal reactions such as [formula omitted] and [formula omitted] become active. When ammonia is injected excessively, the deNOx performance declines because the NH2 radical produced by the electron collision with ammonia reacts with NO2 to make relatively stable N2O.

Original languageEnglish
Pages (from-to)1546-1553
Number of pages8
JournalIEEJ Transactions on Power and Energy
Volume123
Issue number12
DOIs
Publication statusPublished - Jan 1 2003

Fingerprint

Numerical analysis
Ammonia
Byproducts
Electrons
Air pollution
Energy utilization
Electricity
Electric potential

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Numerical Analysis of Repetitive Pulsed-discharge DeNOx Process with Ammonia Injection. / Kusunoki, Hironobu; Onda, Kazuo; Ito, Kohei.

In: IEEJ Transactions on Power and Energy, Vol. 123, No. 12, 01.01.2003, p. 1546-1553.

Research output: Contribution to journalArticle

@article{b44246688607457187ea1d3244335b41,
title = "Numerical Analysis of Repetitive Pulsed-discharge DeNOx Process with Ammonia Injection",
abstract = "Due to the relatively high performance and the compactness, the pulsed-discharge deNOx process is expected to be one of the next generation technologies to suppress air pollution. However, sufficient guide lines for the optimum operation of pulsed-discharge deNOx process has not been presented. In this study, we have simulated numerically the process applied by several hundreds pulsed-voltages. and investigated the effects of by-products and ammonia injuction on the deNOx performance. In a case for the no ammonia injection, both of the NxOy removal efficiency and the electric energy consumption to remove XxOychange with increasing repetitive pulse number, because electrons produced by the discharge recombine with accumulated by-products, such as of H3O+(H2O)2. followed by decreasing radical concentration and oxidative/reductive removal reactions. In a case for ammonia injection, the removal efficiency increases and the electricity consumption decreases with increasing the ammonia concentration, because removal reactions such as [formula omitted] and [formula omitted] become active. When ammonia is injected excessively, the deNOx performance declines because the NH2 radical produced by the electron collision with ammonia reacts with NO2 to make relatively stable N2O.",
author = "Hironobu Kusunoki and Kazuo Onda and Kohei Ito",
year = "2003",
month = "1",
day = "1",
doi = "10.1541/ieejpes.123.1546",
language = "English",
volume = "123",
pages = "1546--1553",
journal = "IEEJ Transactions on Power and Energy",
issn = "0385-4213",
publisher = "The Institute of Electrical Engineers of Japan",
number = "12",

}

TY - JOUR

T1 - Numerical Analysis of Repetitive Pulsed-discharge DeNOx Process with Ammonia Injection

AU - Kusunoki, Hironobu

AU - Onda, Kazuo

AU - Ito, Kohei

PY - 2003/1/1

Y1 - 2003/1/1

N2 - Due to the relatively high performance and the compactness, the pulsed-discharge deNOx process is expected to be one of the next generation technologies to suppress air pollution. However, sufficient guide lines for the optimum operation of pulsed-discharge deNOx process has not been presented. In this study, we have simulated numerically the process applied by several hundreds pulsed-voltages. and investigated the effects of by-products and ammonia injuction on the deNOx performance. In a case for the no ammonia injection, both of the NxOy removal efficiency and the electric energy consumption to remove XxOychange with increasing repetitive pulse number, because electrons produced by the discharge recombine with accumulated by-products, such as of H3O+(H2O)2. followed by decreasing radical concentration and oxidative/reductive removal reactions. In a case for ammonia injection, the removal efficiency increases and the electricity consumption decreases with increasing the ammonia concentration, because removal reactions such as [formula omitted] and [formula omitted] become active. When ammonia is injected excessively, the deNOx performance declines because the NH2 radical produced by the electron collision with ammonia reacts with NO2 to make relatively stable N2O.

AB - Due to the relatively high performance and the compactness, the pulsed-discharge deNOx process is expected to be one of the next generation technologies to suppress air pollution. However, sufficient guide lines for the optimum operation of pulsed-discharge deNOx process has not been presented. In this study, we have simulated numerically the process applied by several hundreds pulsed-voltages. and investigated the effects of by-products and ammonia injuction on the deNOx performance. In a case for the no ammonia injection, both of the NxOy removal efficiency and the electric energy consumption to remove XxOychange with increasing repetitive pulse number, because electrons produced by the discharge recombine with accumulated by-products, such as of H3O+(H2O)2. followed by decreasing radical concentration and oxidative/reductive removal reactions. In a case for ammonia injection, the removal efficiency increases and the electricity consumption decreases with increasing the ammonia concentration, because removal reactions such as [formula omitted] and [formula omitted] become active. When ammonia is injected excessively, the deNOx performance declines because the NH2 radical produced by the electron collision with ammonia reacts with NO2 to make relatively stable N2O.

UR - http://www.scopus.com/inward/record.url?scp=85010232861&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85010232861&partnerID=8YFLogxK

U2 - 10.1541/ieejpes.123.1546

DO - 10.1541/ieejpes.123.1546

M3 - Article

VL - 123

SP - 1546

EP - 1553

JO - IEEJ Transactions on Power and Energy

JF - IEEJ Transactions on Power and Energy

SN - 0385-4213

IS - 12

ER -