CPFD simulation of petcoke and SRF co–firing in a full–scale cement calciner

Mohammadhadi Nakhaei, Hao Wu, Damien Grévain, Lars Skaarup Jensen, Peter Glarborg, Kim Dam–Johansen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Computational particle fluid dynamics (CPFD) simulation is carried out to study the effect of petcoke and solid recovered fuel (SRF) co–firing in a full–scale cement calciner. The simulations are conducted using the Multi–Phase Particle–In–Cell (MP–PIC) approach with the Barracuda Virtual Reactor® 17.3.1 solver. The results from the CPFD simulation are compared with extensive field measurements of gas temperature and composition at several points in different calciner cross–sections. In the simulation, the SRF particles are divided into three components of plastic, biomass, and inert. The plastic particles go through drying, melting and decomposition while the conversion of biomass particles involves drying, devolatilization, and char oxidation. The predicted concentrations of O2 and CO2 are in good agreement with the measurements, while the gas temperature is overpredicted, especially in the lower calciner vessel. However, the trends of changes in the gas temperature are well–captured. The converted fuel fraction and calcination factor are predicted with an acceptable degree of accuracy. The simulation results show that large biomass particles in SRF tend to leave the calciner without complete conversion. Furthermore, a recirculation pattern for SRF particles is observed in the lower calciner vessel and the conical section, leading to high conversion degree of this fuel.
Original languageEnglish
Article number106153
JournalFuel Processing Technology
Volume196
Number of pages15
ISSN0378-3820
DOIs
Publication statusPublished - 2019

Keywords

  • Cement calciner
  • Computational particle fluid dynamics
  • Co–firing
  • Gas–solid flow
  • Solid recovered fuel

Cite this

@article{f798f24335254f9aa9660ac90e154b3f,
title = "CPFD simulation of petcoke and SRF co–firing in a full–scale cement calciner",
abstract = "Computational particle fluid dynamics (CPFD) simulation is carried out to study the effect of petcoke and solid recovered fuel (SRF) co–firing in a full–scale cement calciner. The simulations are conducted using the Multi–Phase Particle–In–Cell (MP–PIC) approach with the Barracuda Virtual Reactor{\circledR} 17.3.1 solver. The results from the CPFD simulation are compared with extensive field measurements of gas temperature and composition at several points in different calciner cross–sections. In the simulation, the SRF particles are divided into three components of plastic, biomass, and inert. The plastic particles go through drying, melting and decomposition while the conversion of biomass particles involves drying, devolatilization, and char oxidation. The predicted concentrations of O2 and CO2 are in good agreement with the measurements, while the gas temperature is overpredicted, especially in the lower calciner vessel. However, the trends of changes in the gas temperature are well–captured. The converted fuel fraction and calcination factor are predicted with an acceptable degree of accuracy. The simulation results show that large biomass particles in SRF tend to leave the calciner without complete conversion. Furthermore, a recirculation pattern for SRF particles is observed in the lower calciner vessel and the conical section, leading to high conversion degree of this fuel.",
keywords = "Cement calciner, Computational particle fluid dynamics, Co–firing, Gas–solid flow, Solid recovered fuel",
author = "Mohammadhadi Nakhaei and Hao Wu and Damien Gr{\'e}vain and Jensen, {Lars Skaarup} and Peter Glarborg and Kim Dam–Johansen",
year = "2019",
doi = "10.1016/j.fuproc.2019.106153",
language = "English",
volume = "196",
journal = "Fuel Processing Technology",
issn = "0378-3820",
publisher = "Elsevier",

}

CPFD simulation of petcoke and SRF co–firing in a full–scale cement calciner. / Nakhaei, Mohammadhadi; Wu, Hao; Grévain, Damien; Jensen, Lars Skaarup; Glarborg, Peter; Dam–Johansen, Kim.

In: Fuel Processing Technology, Vol. 196, 106153, 2019.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - CPFD simulation of petcoke and SRF co–firing in a full–scale cement calciner

AU - Nakhaei, Mohammadhadi

AU - Wu, Hao

AU - Grévain, Damien

AU - Jensen, Lars Skaarup

AU - Glarborg, Peter

AU - Dam–Johansen, Kim

PY - 2019

Y1 - 2019

N2 - Computational particle fluid dynamics (CPFD) simulation is carried out to study the effect of petcoke and solid recovered fuel (SRF) co–firing in a full–scale cement calciner. The simulations are conducted using the Multi–Phase Particle–In–Cell (MP–PIC) approach with the Barracuda Virtual Reactor® 17.3.1 solver. The results from the CPFD simulation are compared with extensive field measurements of gas temperature and composition at several points in different calciner cross–sections. In the simulation, the SRF particles are divided into three components of plastic, biomass, and inert. The plastic particles go through drying, melting and decomposition while the conversion of biomass particles involves drying, devolatilization, and char oxidation. The predicted concentrations of O2 and CO2 are in good agreement with the measurements, while the gas temperature is overpredicted, especially in the lower calciner vessel. However, the trends of changes in the gas temperature are well–captured. The converted fuel fraction and calcination factor are predicted with an acceptable degree of accuracy. The simulation results show that large biomass particles in SRF tend to leave the calciner without complete conversion. Furthermore, a recirculation pattern for SRF particles is observed in the lower calciner vessel and the conical section, leading to high conversion degree of this fuel.

AB - Computational particle fluid dynamics (CPFD) simulation is carried out to study the effect of petcoke and solid recovered fuel (SRF) co–firing in a full–scale cement calciner. The simulations are conducted using the Multi–Phase Particle–In–Cell (MP–PIC) approach with the Barracuda Virtual Reactor® 17.3.1 solver. The results from the CPFD simulation are compared with extensive field measurements of gas temperature and composition at several points in different calciner cross–sections. In the simulation, the SRF particles are divided into three components of plastic, biomass, and inert. The plastic particles go through drying, melting and decomposition while the conversion of biomass particles involves drying, devolatilization, and char oxidation. The predicted concentrations of O2 and CO2 are in good agreement with the measurements, while the gas temperature is overpredicted, especially in the lower calciner vessel. However, the trends of changes in the gas temperature are well–captured. The converted fuel fraction and calcination factor are predicted with an acceptable degree of accuracy. The simulation results show that large biomass particles in SRF tend to leave the calciner without complete conversion. Furthermore, a recirculation pattern for SRF particles is observed in the lower calciner vessel and the conical section, leading to high conversion degree of this fuel.

KW - Cement calciner

KW - Computational particle fluid dynamics

KW - Co–firing

KW - Gas–solid flow

KW - Solid recovered fuel

U2 - 10.1016/j.fuproc.2019.106153

DO - 10.1016/j.fuproc.2019.106153

M3 - Journal article

VL - 196

JO - Fuel Processing Technology

JF - Fuel Processing Technology

SN - 0378-3820

M1 - 106153

ER -