Characteristics of reducing NO using urea and alkaline additives

Seungmoon Lee; Kwinam Park; Jin Won Park; Byung Hwan Kim

doi:10.1016/j.combustflame.2005.01.004

Characteristics of reducing NO using urea and alkaline additives

Seungmoon Lee, Kwinam Park, Jin Won Park, Byung Hwan Kim

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

The reduction of nitric oxide using urea solution combined with alkali salt additives has been studied in a flow tube. The inlet concentration of NO was 500 ppm, with airflow rates of 3 and 5 L/min. Reduction of NO was studied from 650 to 1050°C with urea solutions of 0.3 to 1 mol/L. The efficiency of reduction of NO increased by 44% in the presence of urea alone. A further increase in efficiency was observed in the presence of NaOH as additive; in fact, efficiency increased by more than 25 and 75% when 0.5 and 1 mol/L NaOH, respectively, were added with the urea solution. The efficiency of reduction of NO increased with all additives, but descended in the order NaOH, Na ₂CO₃, NaNO₃, HCOONa, and CHCOONa. The maximum efficiencies of NaOH and NaNO₃ are 74 and 73%, respectively.

Original language	English
Pages (from-to)	200-203
Number of pages	4
Journal	Combustion and Flame
Volume	141
Issue number	3
DOIs	https://doi.org/10.1016/j.combustflame.2005.01.004
Publication status	Published - 2005 May

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)
Fuel Technology
Energy Engineering and Power Technology
Physics and Astronomy(all)

Access to Document

10.1016/j.combustflame.2005.01.004

Cite this

@article{1b6664b381a34669abf2dbbe884b0427,

title = "Characteristics of reducing NO using urea and alkaline additives",

abstract = "The reduction of nitric oxide using urea solution combined with alkali salt additives has been studied in a flow tube. The inlet concentration of NO was 500 ppm, with airflow rates of 3 and 5 L/min. Reduction of NO was studied from 650 to 1050°C with urea solutions of 0.3 to 1 mol/L. The efficiency of reduction of NO increased by 44% in the presence of urea alone. A further increase in efficiency was observed in the presence of NaOH as additive; in fact, efficiency increased by more than 25 and 75% when 0.5 and 1 mol/L NaOH, respectively, were added with the urea solution. The efficiency of reduction of NO increased with all additives, but descended in the order NaOH, Na 2CO3, NaNO3, HCOONa, and CHCOONa. The maximum efficiencies of NaOH and NaNO3 are 74 and 73%, respectively.",

author = "Seungmoon Lee and Kwinam Park and Park, {Jin Won} and Kim, {Byung Hwan}",

year = "2005",

month = may,

doi = "10.1016/j.combustflame.2005.01.004",

language = "English",

volume = "141",

pages = "200--203",

journal = "Combustion and Flame",

issn = "0010-2180",

publisher = "Elsevier Inc.",

number = "3",

}

TY - JOUR

T1 - Characteristics of reducing NO using urea and alkaline additives

AU - Lee, Seungmoon

AU - Park, Kwinam

AU - Park, Jin Won

AU - Kim, Byung Hwan

PY - 2005/5

Y1 - 2005/5

N2 - The reduction of nitric oxide using urea solution combined with alkali salt additives has been studied in a flow tube. The inlet concentration of NO was 500 ppm, with airflow rates of 3 and 5 L/min. Reduction of NO was studied from 650 to 1050°C with urea solutions of 0.3 to 1 mol/L. The efficiency of reduction of NO increased by 44% in the presence of urea alone. A further increase in efficiency was observed in the presence of NaOH as additive; in fact, efficiency increased by more than 25 and 75% when 0.5 and 1 mol/L NaOH, respectively, were added with the urea solution. The efficiency of reduction of NO increased with all additives, but descended in the order NaOH, Na 2CO3, NaNO3, HCOONa, and CHCOONa. The maximum efficiencies of NaOH and NaNO3 are 74 and 73%, respectively.

AB - The reduction of nitric oxide using urea solution combined with alkali salt additives has been studied in a flow tube. The inlet concentration of NO was 500 ppm, with airflow rates of 3 and 5 L/min. Reduction of NO was studied from 650 to 1050°C with urea solutions of 0.3 to 1 mol/L. The efficiency of reduction of NO increased by 44% in the presence of urea alone. A further increase in efficiency was observed in the presence of NaOH as additive; in fact, efficiency increased by more than 25 and 75% when 0.5 and 1 mol/L NaOH, respectively, were added with the urea solution. The efficiency of reduction of NO increased with all additives, but descended in the order NaOH, Na 2CO3, NaNO3, HCOONa, and CHCOONa. The maximum efficiencies of NaOH and NaNO3 are 74 and 73%, respectively.

UR - http://www.scopus.com/inward/record.url?scp=17744365818&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17744365818&partnerID=8YFLogxK

U2 - 10.1016/j.combustflame.2005.01.004

DO - 10.1016/j.combustflame.2005.01.004

M3 - Article

AN - SCOPUS:17744365818

SN - 0010-2180

VL - 141

SP - 200

EP - 203

JO - Combustion and Flame

JF - Combustion and Flame

IS - 3

ER -

Characteristics of reducing NO using urea and alkaline additives

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this