Study on Mass Transfer-Reaction Kinetics of NO Removal from Flue Gas by Using a UV/Fenton-like Reaction

Abstract Solid particle dispersion and chemical reactions in high-viscosity non-Newtonian fluid are commonly encountered in polymerization systems. In this study, an interphase mass transfer model and a finite-rate/eddy-dissipation formulation were integrated into a computational fluid dynamics model to simulate the dispersion behavior of particles and the mass transfer–reaction kinetics in a condensation polymerization-stirred tank reactor. Turbulence fields were obtained using the standard k–ε model and employed to calculate the mixing rate. Cross model was used to characterize the rheological property of the non-Newton fluid. The proposed model was first validated by experimental data in terms of input power. Then, several key operating variables (i.e. agitation speed, viscosity, and particle size) were investigated to evaluate the dispersive mixing performance of the stirred vessel. Simulation showed that a high agitation speed and a low fluid viscosity favored particle dispersions. This study provided useful guidelines for industrial-scale high-viscosity polymerization reactors.

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Mass Transfer-Reaction Kinetics Study on Absorption of NO with Dual Oxidants (H2O2/S2O82–)

Industrial & Engineering Chemistry Research ◽

10.1021/acs.iecr.5b02162 ◽

2015 ◽

Vol 54 (41) ◽

pp. 9905-9912 ◽

Cited By ~ 6

Author(s):

Zhiping Wang ◽

Zuwu Wang

Keyword(s):

Mass Transfer ◽

Reaction Kinetics ◽

Transfer Reaction ◽

Kinetics Study

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Role of CO2 in Mass Transfer, Reaction Kinetics, and Interphase Partitioning for the Transesterification of Triolein in an Expanded Methanol System with Heterogeneous Acid Catalyst

ACS Sustainable Chemistry & Engineering ◽

10.1021/acssuschemeng.5b00472 ◽

2015 ◽

Vol 3 (11) ◽

pp. 2669-2677 ◽

Cited By ~ 13

Author(s):

Lindsay Soh ◽

Chun-Chi Chen ◽

Thomas A. Kwan ◽

Julie B. Zimmerman

Keyword(s):

Mass Transfer ◽

Reaction Kinetics ◽

Transfer Reaction ◽

Acid Catalyst ◽

Heterogeneous Acid Catalyst ◽

Methanol System

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Removal of Hg0 with sodium chlorite solution and mass transfer reaction kinetics

Science China Technological Sciences ◽

10.1007/s11431-010-0045-0 ◽

2010 ◽

Vol 53 (5) ◽

pp. 1258-1265 ◽

Cited By ~ 5

Author(s):

Yi Zhao ◽

SongTao Liu ◽

Jie Yao ◽

XiaoYing Ma ◽

ChuanMin Chen

Keyword(s):

Mass Transfer ◽

Reaction Kinetics ◽

Transfer Reaction ◽

Sodium Chlorite

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Absorption and Reaction Kinetics of Amines and Ammonia Solutions with Carbon Dioxide in Flue Gas

Journal of the Air & Waste Management Association ◽

10.1080/10473289.2003.10466139 ◽

2003 ◽

Vol 53 (2) ◽

pp. 246-252 ◽

Cited By ~ 18

Author(s):

Chia Hao Hsu ◽

Hsin Chu ◽

Chorng Ming Cho

Keyword(s):

Carbon Dioxide ◽

Reaction Kinetics ◽

Flue Gas ◽

Kinetics Of

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Reaction Kinetics of Simultaneous Removal of SO2 and NO from Flue Gas by NaClO2 Solution

International Journal of Chemical Reactor Engineering ◽

10.1515/1542-6580.2451 ◽

2011 ◽

Vol 9 (1) ◽

Cited By ~ 1

Author(s):

Yi Zhao ◽

Liu Feng ◽

Guo Tianxiang ◽

Zhao Yin

Keyword(s):

Reaction Kinetics ◽

Flue Gas ◽

Order Rate Constant ◽

Simultaneous Removal ◽

Fast Reaction ◽

Experimental Conditions ◽

Slow Reaction ◽

Reaction Zones ◽

Kinetics Of ◽

Removal Of So2

Experiments of simultaneous removal of SO2 and NO from simulated flue gas, using NaClO2 solution as the absorbent, were carried out in a self-designed bubble reactor, and removal efficiencies of 100 percent for SO2 and 95.2 percent for NO were obtained under the optimal experimental conditions. The mechanism of simultaneous removal of SO2 and NO using NaClO2 acid solutions was proposed by analyzing the removal products. The reaction kinetics for simultaneous desulfurization and denitrification were investigated, and the results indicated that the oxidation-absorption processes of SO2 and NO were divided into two zones, as the fast and slow reaction zones. In the slow reaction zones, both were zero order reactions, and in the fast reaction zones, the reaction order, rate constant and activation energy of SO2 removal reaction with absorbent were 1.4, 1.22 (mol L-1)-0.4 s-1 and 66.25 kJ mol-1, respectively, and 2, 3.15×103 (mol L-1)-1 s-1, and 42.50 kJ mol-1 for NO removal reaction, respectively.

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