Kinetics of carbonation reaction of basic oxygen furnace slags in a rotating packed bed using the surface coverage model: Maximization of carbonation conversion

Shu Yuan Pan, Pen Chi Chiang, Yi Hung Chen, Chung Sung Tan, E. E. Chang

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The reaction kinetics of carbon dioxide (CO2) capture by the accelerated carbonation of basic oxygen furnace slag (BOFS) in a rotating packed bed (RPB) was evaluated using the surface coverage model. Experimental data were utilized to determine the reaction rate constants and maximum carbonation conversion of BOFS based on the surface coverage model. The results indicate that the carbonation of BOFS in an RPB can be well-expressed by the surface coverage model, with R2 values from 0.98 to 0.99. In addition, the results of reaction kinetics could be validated by observation of SEM and XEDS before and after carbonation, which indicates that the reacted BOFS was surrounded by the CaCO3 product. On the other hand, the reaction kinetics of steelmaking slag in an RPB was compared with that in various types of reactors, i.e., autoclave and slurry reactors. The overall rate of carbonation in an RPB (i.e., 0.299min-1) was greater than that in both a slurry reactor (i.e., 0.227min-1) and an autoclave reactor (i.e., 0.033min-1). Furthermore, the maximum carbonation conversion of BOFS was initially determined by the results of the surface coverage model and then confirmed statistically by the response surface methodology (RSM). It was thus concluded that accelerated carbonation of BOFS in the RPB is a viable method due to its faster reaction kinetics under relatively milder reaction conditions. Accelerated carbonation of BOFS in the RPB is a promising process for CO2 capture due to its relatively higher carbonation conversion of BOFS within a shorter reaction time.

Original languageEnglish
Pages (from-to)267-276
Number of pages10
JournalApplied Energy
Volume113
DOIs
Publication statusPublished - 2014

Fingerprint

Basic oxygen converters
Carbonation
Packed beds
slag
Slags
kinetics
oxygen
Kinetics
reaction kinetics
Reaction kinetics
Autoclaves
slurry
furnace
Steelmaking
reaction rate
Reaction rates
Rate constants
Carbon dioxide
carbon dioxide
scanning electron microscopy

Keywords

  • Autoclave reactor
  • Calcium carbonate
  • Carbon capture
  • Reaction rate constant
  • Response surface methodology
  • Slurry reactor

ASJC Scopus subject areas

  • Energy(all)
  • Civil and Structural Engineering

Cite this

Kinetics of carbonation reaction of basic oxygen furnace slags in a rotating packed bed using the surface coverage model : Maximization of carbonation conversion. / Pan, Shu Yuan; Chiang, Pen Chi; Chen, Yi Hung; Tan, Chung Sung; Chang, E. E.

In: Applied Energy, Vol. 113, 2014, p. 267-276.

Research output: Contribution to journalArticle

Pan, Shu Yuan ; Chiang, Pen Chi ; Chen, Yi Hung ; Tan, Chung Sung ; Chang, E. E. / Kinetics of carbonation reaction of basic oxygen furnace slags in a rotating packed bed using the surface coverage model : Maximization of carbonation conversion. In: Applied Energy. 2014 ; Vol. 113. pp. 267-276.
@article{a79ea16c796d4af681e907053225e9ec,
title = "Kinetics of carbonation reaction of basic oxygen furnace slags in a rotating packed bed using the surface coverage model: Maximization of carbonation conversion",
abstract = "The reaction kinetics of carbon dioxide (CO2) capture by the accelerated carbonation of basic oxygen furnace slag (BOFS) in a rotating packed bed (RPB) was evaluated using the surface coverage model. Experimental data were utilized to determine the reaction rate constants and maximum carbonation conversion of BOFS based on the surface coverage model. The results indicate that the carbonation of BOFS in an RPB can be well-expressed by the surface coverage model, with R2 values from 0.98 to 0.99. In addition, the results of reaction kinetics could be validated by observation of SEM and XEDS before and after carbonation, which indicates that the reacted BOFS was surrounded by the CaCO3 product. On the other hand, the reaction kinetics of steelmaking slag in an RPB was compared with that in various types of reactors, i.e., autoclave and slurry reactors. The overall rate of carbonation in an RPB (i.e., 0.299min-1) was greater than that in both a slurry reactor (i.e., 0.227min-1) and an autoclave reactor (i.e., 0.033min-1). Furthermore, the maximum carbonation conversion of BOFS was initially determined by the results of the surface coverage model and then confirmed statistically by the response surface methodology (RSM). It was thus concluded that accelerated carbonation of BOFS in the RPB is a viable method due to its faster reaction kinetics under relatively milder reaction conditions. Accelerated carbonation of BOFS in the RPB is a promising process for CO2 capture due to its relatively higher carbonation conversion of BOFS within a shorter reaction time.",
keywords = "Autoclave reactor, Calcium carbonate, Carbon capture, Reaction rate constant, Response surface methodology, Slurry reactor",
author = "Pan, {Shu Yuan} and Chiang, {Pen Chi} and Chen, {Yi Hung} and Tan, {Chung Sung} and Chang, {E. E.}",
year = "2014",
doi = "10.1016/j.apenergy.2013.07.035",
language = "English",
volume = "113",
pages = "267--276",
journal = "Applied Energy",
issn = "0306-2619",
publisher = "Elsevier BV",

}

TY - JOUR

T1 - Kinetics of carbonation reaction of basic oxygen furnace slags in a rotating packed bed using the surface coverage model

T2 - Maximization of carbonation conversion

AU - Pan, Shu Yuan

AU - Chiang, Pen Chi

AU - Chen, Yi Hung

AU - Tan, Chung Sung

AU - Chang, E. E.

PY - 2014

Y1 - 2014

N2 - The reaction kinetics of carbon dioxide (CO2) capture by the accelerated carbonation of basic oxygen furnace slag (BOFS) in a rotating packed bed (RPB) was evaluated using the surface coverage model. Experimental data were utilized to determine the reaction rate constants and maximum carbonation conversion of BOFS based on the surface coverage model. The results indicate that the carbonation of BOFS in an RPB can be well-expressed by the surface coverage model, with R2 values from 0.98 to 0.99. In addition, the results of reaction kinetics could be validated by observation of SEM and XEDS before and after carbonation, which indicates that the reacted BOFS was surrounded by the CaCO3 product. On the other hand, the reaction kinetics of steelmaking slag in an RPB was compared with that in various types of reactors, i.e., autoclave and slurry reactors. The overall rate of carbonation in an RPB (i.e., 0.299min-1) was greater than that in both a slurry reactor (i.e., 0.227min-1) and an autoclave reactor (i.e., 0.033min-1). Furthermore, the maximum carbonation conversion of BOFS was initially determined by the results of the surface coverage model and then confirmed statistically by the response surface methodology (RSM). It was thus concluded that accelerated carbonation of BOFS in the RPB is a viable method due to its faster reaction kinetics under relatively milder reaction conditions. Accelerated carbonation of BOFS in the RPB is a promising process for CO2 capture due to its relatively higher carbonation conversion of BOFS within a shorter reaction time.

AB - The reaction kinetics of carbon dioxide (CO2) capture by the accelerated carbonation of basic oxygen furnace slag (BOFS) in a rotating packed bed (RPB) was evaluated using the surface coverage model. Experimental data were utilized to determine the reaction rate constants and maximum carbonation conversion of BOFS based on the surface coverage model. The results indicate that the carbonation of BOFS in an RPB can be well-expressed by the surface coverage model, with R2 values from 0.98 to 0.99. In addition, the results of reaction kinetics could be validated by observation of SEM and XEDS before and after carbonation, which indicates that the reacted BOFS was surrounded by the CaCO3 product. On the other hand, the reaction kinetics of steelmaking slag in an RPB was compared with that in various types of reactors, i.e., autoclave and slurry reactors. The overall rate of carbonation in an RPB (i.e., 0.299min-1) was greater than that in both a slurry reactor (i.e., 0.227min-1) and an autoclave reactor (i.e., 0.033min-1). Furthermore, the maximum carbonation conversion of BOFS was initially determined by the results of the surface coverage model and then confirmed statistically by the response surface methodology (RSM). It was thus concluded that accelerated carbonation of BOFS in the RPB is a viable method due to its faster reaction kinetics under relatively milder reaction conditions. Accelerated carbonation of BOFS in the RPB is a promising process for CO2 capture due to its relatively higher carbonation conversion of BOFS within a shorter reaction time.

KW - Autoclave reactor

KW - Calcium carbonate

KW - Carbon capture

KW - Reaction rate constant

KW - Response surface methodology

KW - Slurry reactor

UR - http://www.scopus.com/inward/record.url?scp=84882709444&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84882709444&partnerID=8YFLogxK

U2 - 10.1016/j.apenergy.2013.07.035

DO - 10.1016/j.apenergy.2013.07.035

M3 - Article

AN - SCOPUS:84882709444

VL - 113

SP - 267

EP - 276

JO - Applied Energy

JF - Applied Energy

SN - 0306-2619

ER -