Absorption kinetics of NO from simulated flue gas using Fe(II)EDTA solutions

研究成果: Article

46 引文 (Scopus)

摘要

The absorption of NO encountering flue gases in aqueous solutions of Fe(II)EDTA was determined using a semi-batch stirred tank with a plane gas-liquid interface at 50 °C. The concentrations of NO, SO2 and O2 in the feeding stream were 300-800 ppm, 500-2200 ppm and 0-20%, respectively. The pH value of the Fe(II)EDTA solutions varied from 3 to 11. The concentrations of Fe(II)EDTA were maintained between 0.01 and 0.05 M. Experiments were performed to evaluate the effect of operating parameters on the NO absorption rate, the reaction kinetics of the reactants in gas and liquid phases, and the effect of competition between various reactants on the mass transfer rate in the NO removal system. Results indicate that the average reaction rate constant is 3.70 × 107 M-1 s-1. Adding NaOH does not increase the absorption capability of Fe(II)EDTA. The presence of O2 decreases the NO absorption rate with Fe(II)EDTA. The absorption rate of NO with Fe(II)EDTA decreases at low concentrations of SO2, but increases at high concentrations.

原文English
頁(從 - 到)300-306
頁數7
期刊Process Safety and Environmental Protection
87
發行號5
DOIs
出版狀態Published - 2009 九月 1

指紋

Ethylenediaminetetraacetic acid
EDTA
Flue gases
kinetics
Kinetics
Gases
liquid
Liquids
reaction kinetics
gas
Reaction kinetics
reaction rate
Reaction rates
flue gas
Fe(II)-EDTA
mass transfer
Rate constants
Mass transfer
aqueous solution
rate

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Safety, Risk, Reliability and Quality

引用此文

@article{324e76fd87974b79bba9a52e88ff0ce1,
title = "Absorption kinetics of NO from simulated flue gas using Fe(II)EDTA solutions",
abstract = "The absorption of NO encountering flue gases in aqueous solutions of Fe(II)EDTA was determined using a semi-batch stirred tank with a plane gas-liquid interface at 50 °C. The concentrations of NO, SO2 and O2 in the feeding stream were 300-800 ppm, 500-2200 ppm and 0-20{\%}, respectively. The pH value of the Fe(II)EDTA solutions varied from 3 to 11. The concentrations of Fe(II)EDTA were maintained between 0.01 and 0.05 M. Experiments were performed to evaluate the effect of operating parameters on the NO absorption rate, the reaction kinetics of the reactants in gas and liquid phases, and the effect of competition between various reactants on the mass transfer rate in the NO removal system. Results indicate that the average reaction rate constant is 3.70 × 107 M-1 s-1. Adding NaOH does not increase the absorption capability of Fe(II)EDTA. The presence of O2 decreases the NO absorption rate with Fe(II)EDTA. The absorption rate of NO with Fe(II)EDTA decreases at low concentrations of SO2, but increases at high concentrations.",
author = "Chien, {Tsung Wen} and Hsueh, {Hsin Ta} and Chu, {Bo Yu} and Hsin Chu",
year = "2009",
month = "9",
day = "1",
doi = "10.1016/j.psep.2009.06.002",
language = "English",
volume = "87",
pages = "300--306",
journal = "Process Safety and Environmental Protection",
issn = "0957-5820",
publisher = "Institution of Chemical Engineers",
number = "5",

}

TY - JOUR

T1 - Absorption kinetics of NO from simulated flue gas using Fe(II)EDTA solutions

AU - Chien, Tsung Wen

AU - Hsueh, Hsin Ta

AU - Chu, Bo Yu

AU - Chu, Hsin

PY - 2009/9/1

Y1 - 2009/9/1

N2 - The absorption of NO encountering flue gases in aqueous solutions of Fe(II)EDTA was determined using a semi-batch stirred tank with a plane gas-liquid interface at 50 °C. The concentrations of NO, SO2 and O2 in the feeding stream were 300-800 ppm, 500-2200 ppm and 0-20%, respectively. The pH value of the Fe(II)EDTA solutions varied from 3 to 11. The concentrations of Fe(II)EDTA were maintained between 0.01 and 0.05 M. Experiments were performed to evaluate the effect of operating parameters on the NO absorption rate, the reaction kinetics of the reactants in gas and liquid phases, and the effect of competition between various reactants on the mass transfer rate in the NO removal system. Results indicate that the average reaction rate constant is 3.70 × 107 M-1 s-1. Adding NaOH does not increase the absorption capability of Fe(II)EDTA. The presence of O2 decreases the NO absorption rate with Fe(II)EDTA. The absorption rate of NO with Fe(II)EDTA decreases at low concentrations of SO2, but increases at high concentrations.

AB - The absorption of NO encountering flue gases in aqueous solutions of Fe(II)EDTA was determined using a semi-batch stirred tank with a plane gas-liquid interface at 50 °C. The concentrations of NO, SO2 and O2 in the feeding stream were 300-800 ppm, 500-2200 ppm and 0-20%, respectively. The pH value of the Fe(II)EDTA solutions varied from 3 to 11. The concentrations of Fe(II)EDTA were maintained between 0.01 and 0.05 M. Experiments were performed to evaluate the effect of operating parameters on the NO absorption rate, the reaction kinetics of the reactants in gas and liquid phases, and the effect of competition between various reactants on the mass transfer rate in the NO removal system. Results indicate that the average reaction rate constant is 3.70 × 107 M-1 s-1. Adding NaOH does not increase the absorption capability of Fe(II)EDTA. The presence of O2 decreases the NO absorption rate with Fe(II)EDTA. The absorption rate of NO with Fe(II)EDTA decreases at low concentrations of SO2, but increases at high concentrations.

UR - http://www.scopus.com/inward/record.url?scp=69049120157&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=69049120157&partnerID=8YFLogxK

U2 - 10.1016/j.psep.2009.06.002

DO - 10.1016/j.psep.2009.06.002

M3 - Article

AN - SCOPUS:69049120157

VL - 87

SP - 300

EP - 306

JO - Process Safety and Environmental Protection

JF - Process Safety and Environmental Protection

SN - 0957-5820

IS - 5

ER -