Kinetics of the reaction between ozone and p-hydroxybenzoic acid in a semibatch reactor

Ya Wen Ko, Pen Chi Chiang, Chia Line Chuang, E. E. Chang

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The kinetic regime in the ozone and p-hydroxybenzoic acid reaction system at pH 3 and 7 can be considered a slow reaction, whereas at pH 10 the rapid reaction mainly occurred in the liquid film and developed in the fast absorption kinetic regime. On the basis of the discussion of kinetic regime and the experimental observations, the kinetic expressions for the p- hydroxybenzoic acid, glyoxal, and dissolved ozone concentration can be developed for both pH 3 and 7 and were verified with the experimental data. The reaction rate constants were also calculated. The agreement between the experimental observations and the model predictions was reasonably good. However, at pH 7, a positive deviation in the decaying glyoxal profile and the overestimation for the p-hydroxybenzoic acid and dissolved ozone concentration were found. The reasons for the discrepancy between the predicted and measured concentrations were also discussed.

Original languageEnglish
Pages (from-to)635-641
Number of pages7
JournalIndustrial and Engineering Chemistry Research
Volume39
Issue number3
Publication statusPublished - 2000

Fingerprint

Hydroxybenzoates
Ozone
ozone
Glyoxal
kinetics
Kinetics
Acids
acid
Liquid films
reaction rate
Reaction rates
Rate constants
liquid
reactor
prediction

ASJC Scopus subject areas

  • Polymers and Plastics
  • Environmental Science(all)
  • Chemical Engineering (miscellaneous)

Cite this

Kinetics of the reaction between ozone and p-hydroxybenzoic acid in a semibatch reactor. / Ko, Ya Wen; Chiang, Pen Chi; Chuang, Chia Line; Chang, E. E.

In: Industrial and Engineering Chemistry Research, Vol. 39, No. 3, 2000, p. 635-641.

Research output: Contribution to journalArticle

Ko, Ya Wen ; Chiang, Pen Chi ; Chuang, Chia Line ; Chang, E. E. / Kinetics of the reaction between ozone and p-hydroxybenzoic acid in a semibatch reactor. In: Industrial and Engineering Chemistry Research. 2000 ; Vol. 39, No. 3. pp. 635-641.
@article{75873563e10544bbaab460face0d1b1f,
title = "Kinetics of the reaction between ozone and p-hydroxybenzoic acid in a semibatch reactor",
abstract = "The kinetic regime in the ozone and p-hydroxybenzoic acid reaction system at pH 3 and 7 can be considered a slow reaction, whereas at pH 10 the rapid reaction mainly occurred in the liquid film and developed in the fast absorption kinetic regime. On the basis of the discussion of kinetic regime and the experimental observations, the kinetic expressions for the p- hydroxybenzoic acid, glyoxal, and dissolved ozone concentration can be developed for both pH 3 and 7 and were verified with the experimental data. The reaction rate constants were also calculated. The agreement between the experimental observations and the model predictions was reasonably good. However, at pH 7, a positive deviation in the decaying glyoxal profile and the overestimation for the p-hydroxybenzoic acid and dissolved ozone concentration were found. The reasons for the discrepancy between the predicted and measured concentrations were also discussed.",
author = "Ko, {Ya Wen} and Chiang, {Pen Chi} and Chuang, {Chia Line} and Chang, {E. E.}",
year = "2000",
language = "English",
volume = "39",
pages = "635--641",
journal = "Industrial & Engineering Chemistry Product Research and Development",
issn = "0888-5885",
publisher = "American Chemical Society",
number = "3",

}

TY - JOUR

T1 - Kinetics of the reaction between ozone and p-hydroxybenzoic acid in a semibatch reactor

AU - Ko, Ya Wen

AU - Chiang, Pen Chi

AU - Chuang, Chia Line

AU - Chang, E. E.

PY - 2000

Y1 - 2000

N2 - The kinetic regime in the ozone and p-hydroxybenzoic acid reaction system at pH 3 and 7 can be considered a slow reaction, whereas at pH 10 the rapid reaction mainly occurred in the liquid film and developed in the fast absorption kinetic regime. On the basis of the discussion of kinetic regime and the experimental observations, the kinetic expressions for the p- hydroxybenzoic acid, glyoxal, and dissolved ozone concentration can be developed for both pH 3 and 7 and were verified with the experimental data. The reaction rate constants were also calculated. The agreement between the experimental observations and the model predictions was reasonably good. However, at pH 7, a positive deviation in the decaying glyoxal profile and the overestimation for the p-hydroxybenzoic acid and dissolved ozone concentration were found. The reasons for the discrepancy between the predicted and measured concentrations were also discussed.

AB - The kinetic regime in the ozone and p-hydroxybenzoic acid reaction system at pH 3 and 7 can be considered a slow reaction, whereas at pH 10 the rapid reaction mainly occurred in the liquid film and developed in the fast absorption kinetic regime. On the basis of the discussion of kinetic regime and the experimental observations, the kinetic expressions for the p- hydroxybenzoic acid, glyoxal, and dissolved ozone concentration can be developed for both pH 3 and 7 and were verified with the experimental data. The reaction rate constants were also calculated. The agreement between the experimental observations and the model predictions was reasonably good. However, at pH 7, a positive deviation in the decaying glyoxal profile and the overestimation for the p-hydroxybenzoic acid and dissolved ozone concentration were found. The reasons for the discrepancy between the predicted and measured concentrations were also discussed.

UR - http://www.scopus.com/inward/record.url?scp=0034124852&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034124852&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0034124852

VL - 39

SP - 635

EP - 641

JO - Industrial & Engineering Chemistry Product Research and Development

JF - Industrial & Engineering Chemistry Product Research and Development

SN - 0888-5885

IS - 3

ER -