Modeling a counter-current moving bed for fuel and steam reactors in the TRCL process

Kyoung Soo Kang, Chang Hee Kim, Ki Kwang Bae, Won Chul Cho, Seong Uk Jeong, Sung Hyun Kim, Chu Sik Park

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A mathematical model for the moving bed is developed to simulate the fuel and steam reactor in the TRCL (Three-Reactor Chemical-Looping) process. An ideal plug flow of the solid and gas is assumed in modeling the fuel and steam reactor in the TRCL process. The model considered the mass, heat balances, equilibrium, physical properties, such as the heat capacity and viscosity, and kinetics. From this model, the temperature, gas conversion and solid conversion profiles can be predicted for fuel and steam reactors. The oxygen carrier inventory (the mass of the oxygen carrier) in the fuel and steam reactor was calculated with variation of the solid inlet temperature, solid conversion, Fe2O3 content and steam feed rate. The temperature of the oxygen carrier to the reactor was the most sensitive parameter for determining the required inventory of the oxygen carrier. An increase in the solid inlet temperature was predicted to decrease the required inventory of the oxygen carrier. In the steam reactor, a solid inlet temperature increase over 1150 K will cause an increase in the inventory of the oxygen carrier due to the equilibrium conversion. An excessively low or high active material content will require a larger inventory of the oxygen carrier in the fuel reactor. In this study, approximately 20 wt.% of the Fe2O3 content was suitable for reducing the inventory of the oxygen carrier while achieving a solid conversion of 0.9 in the fuel reactor.

Original languageEnglish
Pages (from-to)3251-3260
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number4
DOIs
Publication statusPublished - 2012 Feb 1

Fingerprint

chemical reactors
Chemical reactors
steam
beds
counters
Steam
reactors
Oxygen
oxygen
inlet temperature
nuclear fuels
Temperature
heat balance
plugs
gas temperature
Gases
Specific heat
mathematical models
Physical properties
physical properties

Keywords

  • Chemical-looping
  • Counter-current moving bed
  • Fe O/ZrO
  • Hydrogen
  • Methane
  • Modeling

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Modeling a counter-current moving bed for fuel and steam reactors in the TRCL process. / Kang, Kyoung Soo; Kim, Chang Hee; Bae, Ki Kwang; Cho, Won Chul; Jeong, Seong Uk; Kim, Sung Hyun; Park, Chu Sik.

In: International Journal of Hydrogen Energy, Vol. 37, No. 4, 01.02.2012, p. 3251-3260.

Research output: Contribution to journalArticle

Kang, Kyoung Soo ; Kim, Chang Hee ; Bae, Ki Kwang ; Cho, Won Chul ; Jeong, Seong Uk ; Kim, Sung Hyun ; Park, Chu Sik. / Modeling a counter-current moving bed for fuel and steam reactors in the TRCL process. In: International Journal of Hydrogen Energy. 2012 ; Vol. 37, No. 4. pp. 3251-3260.
@article{e36c41a2df6e457c90986ddc6c8452d7,
title = "Modeling a counter-current moving bed for fuel and steam reactors in the TRCL process",
abstract = "A mathematical model for the moving bed is developed to simulate the fuel and steam reactor in the TRCL (Three-Reactor Chemical-Looping) process. An ideal plug flow of the solid and gas is assumed in modeling the fuel and steam reactor in the TRCL process. The model considered the mass, heat balances, equilibrium, physical properties, such as the heat capacity and viscosity, and kinetics. From this model, the temperature, gas conversion and solid conversion profiles can be predicted for fuel and steam reactors. The oxygen carrier inventory (the mass of the oxygen carrier) in the fuel and steam reactor was calculated with variation of the solid inlet temperature, solid conversion, Fe2O3 content and steam feed rate. The temperature of the oxygen carrier to the reactor was the most sensitive parameter for determining the required inventory of the oxygen carrier. An increase in the solid inlet temperature was predicted to decrease the required inventory of the oxygen carrier. In the steam reactor, a solid inlet temperature increase over 1150 K will cause an increase in the inventory of the oxygen carrier due to the equilibrium conversion. An excessively low or high active material content will require a larger inventory of the oxygen carrier in the fuel reactor. In this study, approximately 20 wt.{\%} of the Fe2O3 content was suitable for reducing the inventory of the oxygen carrier while achieving a solid conversion of 0.9 in the fuel reactor.",
keywords = "Chemical-looping, Counter-current moving bed, Fe O/ZrO, Hydrogen, Methane, Modeling",
author = "Kang, {Kyoung Soo} and Kim, {Chang Hee} and Bae, {Ki Kwang} and Cho, {Won Chul} and Jeong, {Seong Uk} and Kim, {Sung Hyun} and Park, {Chu Sik}",
year = "2012",
month = "2",
day = "1",
doi = "10.1016/j.ijhydene.2011.11.021",
language = "English",
volume = "37",
pages = "3251--3260",
journal = "International Journal of Hydrogen Energy",
issn = "0360-3199",
publisher = "Elsevier Limited",
number = "4",

}

TY - JOUR

T1 - Modeling a counter-current moving bed for fuel and steam reactors in the TRCL process

AU - Kang, Kyoung Soo

AU - Kim, Chang Hee

AU - Bae, Ki Kwang

AU - Cho, Won Chul

AU - Jeong, Seong Uk

AU - Kim, Sung Hyun

AU - Park, Chu Sik

PY - 2012/2/1

Y1 - 2012/2/1

N2 - A mathematical model for the moving bed is developed to simulate the fuel and steam reactor in the TRCL (Three-Reactor Chemical-Looping) process. An ideal plug flow of the solid and gas is assumed in modeling the fuel and steam reactor in the TRCL process. The model considered the mass, heat balances, equilibrium, physical properties, such as the heat capacity and viscosity, and kinetics. From this model, the temperature, gas conversion and solid conversion profiles can be predicted for fuel and steam reactors. The oxygen carrier inventory (the mass of the oxygen carrier) in the fuel and steam reactor was calculated with variation of the solid inlet temperature, solid conversion, Fe2O3 content and steam feed rate. The temperature of the oxygen carrier to the reactor was the most sensitive parameter for determining the required inventory of the oxygen carrier. An increase in the solid inlet temperature was predicted to decrease the required inventory of the oxygen carrier. In the steam reactor, a solid inlet temperature increase over 1150 K will cause an increase in the inventory of the oxygen carrier due to the equilibrium conversion. An excessively low or high active material content will require a larger inventory of the oxygen carrier in the fuel reactor. In this study, approximately 20 wt.% of the Fe2O3 content was suitable for reducing the inventory of the oxygen carrier while achieving a solid conversion of 0.9 in the fuel reactor.

AB - A mathematical model for the moving bed is developed to simulate the fuel and steam reactor in the TRCL (Three-Reactor Chemical-Looping) process. An ideal plug flow of the solid and gas is assumed in modeling the fuel and steam reactor in the TRCL process. The model considered the mass, heat balances, equilibrium, physical properties, such as the heat capacity and viscosity, and kinetics. From this model, the temperature, gas conversion and solid conversion profiles can be predicted for fuel and steam reactors. The oxygen carrier inventory (the mass of the oxygen carrier) in the fuel and steam reactor was calculated with variation of the solid inlet temperature, solid conversion, Fe2O3 content and steam feed rate. The temperature of the oxygen carrier to the reactor was the most sensitive parameter for determining the required inventory of the oxygen carrier. An increase in the solid inlet temperature was predicted to decrease the required inventory of the oxygen carrier. In the steam reactor, a solid inlet temperature increase over 1150 K will cause an increase in the inventory of the oxygen carrier due to the equilibrium conversion. An excessively low or high active material content will require a larger inventory of the oxygen carrier in the fuel reactor. In this study, approximately 20 wt.% of the Fe2O3 content was suitable for reducing the inventory of the oxygen carrier while achieving a solid conversion of 0.9 in the fuel reactor.

KW - Chemical-looping

KW - Counter-current moving bed

KW - Fe O/ZrO

KW - Hydrogen

KW - Methane

KW - Modeling

UR - http://www.scopus.com/inward/record.url?scp=84856566334&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84856566334&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2011.11.021

DO - 10.1016/j.ijhydene.2011.11.021

M3 - Article

AN - SCOPUS:84856566334

VL - 37

SP - 3251

EP - 3260

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 4

ER -