Hydrogen chloride (HCl) absorption by raw meal and raw meal compounds, using in-situ HCl generation and TGA-FTIR tests

Stylianos Pachitsas*, Lars Skaarup Jensen, Stig Wedel, Jytte Boll Illerup, Kim Dam-Johansen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

HCl emission control optimization from cement plants requires a quantification of the HCl absorption capacity of raw meals (mixtures of fine particles of raw materials) and the determination of raw meal constituent effects on HCl capture below 400 ℃. This work reports lab data obtained by ramping temperature tests using a standard TGA-FTIR set-up, a thermally degradable solid HCl source (AlCl3 6H2O), industrial raw meals, and mixtures of reagent grade raw meal constituents (SiO2, CaCO3, Fe2O3, and Al2O3). The lab data showed that industrial raw meals had significantly higher HCl absorption capacity than reagent grade CaCO3. The presence of Fe2O3 promoted HCl capture by CaCO3 between 90 ℃ and 350 ℃. The HCl absorption by raw meals was higher when the HCl source was dispersed rather than when it was placed below the raw meals.
Original languageEnglish
Article number102869
JournalJournal of Environmental Chemical Engineering
Volume7
Issue number1
Number of pages4
ISSN2213-3437
DOIs
Publication statusPublished - 2019

Keywords

  • HCl
  • Absorption
  • Cement
  • CaCO3
  • Fe2O3
  • Low temperatures

Cite this

@article{e34a7bc90a1f4f3292c14fde823d08da,
title = "Hydrogen chloride (HCl) absorption by raw meal and raw meal compounds, using in-situ HCl generation and TGA-FTIR tests",
abstract = "HCl emission control optimization from cement plants requires a quantification of the HCl absorption capacity of raw meals (mixtures of fine particles of raw materials) and the determination of raw meal constituent effects on HCl capture below 400 ℃. This work reports lab data obtained by ramping temperature tests using a standard TGA-FTIR set-up, a thermally degradable solid HCl source (AlCl3 6H2O), industrial raw meals, and mixtures of reagent grade raw meal constituents (SiO2, CaCO3, Fe2O3, and Al2O3). The lab data showed that industrial raw meals had significantly higher HCl absorption capacity than reagent grade CaCO3. The presence of Fe2O3 promoted HCl capture by CaCO3 between 90 ℃ and 350 ℃. The HCl absorption by raw meals was higher when the HCl source was dispersed rather than when it was placed below the raw meals.",
keywords = "HCl, Absorption, Cement, CaCO3, Fe2O3, Low temperatures",
author = "Stylianos Pachitsas and Jensen, {Lars Skaarup} and Stig Wedel and Illerup, {Jytte Boll} and Kim Dam-Johansen",
year = "2019",
doi = "10.1016/j.jece.2018.102869",
language = "English",
volume = "7",
journal = "Journal of Environmental Chemical Engineering",
issn = "2213-3437",
publisher = "Elsevier",
number = "1",

}

Hydrogen chloride (HCl) absorption by raw meal and raw meal compounds, using in-situ HCl generation and TGA-FTIR tests. / Pachitsas, Stylianos; Jensen, Lars Skaarup; Wedel, Stig; Illerup, Jytte Boll; Dam-Johansen, Kim.

In: Journal of Environmental Chemical Engineering, Vol. 7, No. 1, 102869, 2019.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Hydrogen chloride (HCl) absorption by raw meal and raw meal compounds, using in-situ HCl generation and TGA-FTIR tests

AU - Pachitsas, Stylianos

AU - Jensen, Lars Skaarup

AU - Wedel, Stig

AU - Illerup, Jytte Boll

AU - Dam-Johansen, Kim

PY - 2019

Y1 - 2019

N2 - HCl emission control optimization from cement plants requires a quantification of the HCl absorption capacity of raw meals (mixtures of fine particles of raw materials) and the determination of raw meal constituent effects on HCl capture below 400 ℃. This work reports lab data obtained by ramping temperature tests using a standard TGA-FTIR set-up, a thermally degradable solid HCl source (AlCl3 6H2O), industrial raw meals, and mixtures of reagent grade raw meal constituents (SiO2, CaCO3, Fe2O3, and Al2O3). The lab data showed that industrial raw meals had significantly higher HCl absorption capacity than reagent grade CaCO3. The presence of Fe2O3 promoted HCl capture by CaCO3 between 90 ℃ and 350 ℃. The HCl absorption by raw meals was higher when the HCl source was dispersed rather than when it was placed below the raw meals.

AB - HCl emission control optimization from cement plants requires a quantification of the HCl absorption capacity of raw meals (mixtures of fine particles of raw materials) and the determination of raw meal constituent effects on HCl capture below 400 ℃. This work reports lab data obtained by ramping temperature tests using a standard TGA-FTIR set-up, a thermally degradable solid HCl source (AlCl3 6H2O), industrial raw meals, and mixtures of reagent grade raw meal constituents (SiO2, CaCO3, Fe2O3, and Al2O3). The lab data showed that industrial raw meals had significantly higher HCl absorption capacity than reagent grade CaCO3. The presence of Fe2O3 promoted HCl capture by CaCO3 between 90 ℃ and 350 ℃. The HCl absorption by raw meals was higher when the HCl source was dispersed rather than when it was placed below the raw meals.

KW - HCl

KW - Absorption

KW - Cement

KW - CaCO3

KW - Fe2O3

KW - Low temperatures

U2 - 10.1016/j.jece.2018.102869

DO - 10.1016/j.jece.2018.102869

M3 - Journal article

VL - 7

JO - Journal of Environmental Chemical Engineering

JF - Journal of Environmental Chemical Engineering

SN - 2213-3437

IS - 1

M1 - 102869

ER -