CO2 sequestration using red gypsum via pH-swing process: Effect of carbonation temperature and NH4HCO3 on the process efficiency

Amin  Azdarpour; Mohammad Afkhami Karaei; Hossein Hamidi; Erfan Mohammadian; Maryam Barati; Bijan Honarvar

doi:10.1016/j.minpro.2017.09.014

CO2 sequestration using red gypsum via pH-swing process: Effect of carbonation temperature and NH4HCO3 on the process efficiency

Amin Azdarpour, Mohammad Afkhami Karaei, Hossein Hamidi, Erfan Mohammadian, Maryam Barati, Bijan Honarvar

Engineering

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

51 Downloads (Pure)

Abstract

The main purpose of this study is to investigate the effect of reaction temperature and NH4HCO3 on the overall performance of a pH swing mineral carbonation. The overall performance of the pH swing process is investigated in terms of carbonation efficiency and product purity. Initially, 2 M H2SO4 is used for red gypsum dissolution at 70 °C. Then in the second stage, NH4OH is added for increasing the solution pH and removing the impurities from solutions. Finally, CO32– is introduced to calcium rich solution in the form of pure CO2 and NH4HCO3. The experimental results show that using NH4HCO3 improves carbonation efficiency and product purity. Carbonation efficiency attains a maximum value at 75 °C and then decreases gradually with increasing temperature up to 300 °C, with both CO2 and NH4HCO3. In this research, CaCO3 with the maximum purity of 99.05% is produced successfully when NH4HCO3 is used as a CO32– source.

Original language	English
Pages (from-to)	27-34
Number of pages	8
Journal	International Journal of Mineral Processing
Volume	169
Early online date	14 Oct 2017
DOIs	https://doi.org/10.1016/j.minpro.2017.09.014
Publication status	Published - 10 Dec 2017

Bibliographical note

The authors would like to appreciate the Department of Petroleum Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran for the provision of the laboratory facilities necessary for completing this work. We would also like to thank Dr. Peter Dunning from University of Aberdeen for English proofreading of this manuscript.

Keywords

CO2 sequestration
carbon capture and storage
mineral carbonation
calcium carbonate
pH swing

Access to Document

10.1016/j.minpro.2017.09.014Licence: Unspecified

Revised manuscript Hossein
© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Accepted author manuscript, 1.25 MBLicence: CC BY-NC-ND

Cite this

@article{f804aa6e7f6e49f287f5a4a4dfc20bde,

title = "CO2 sequestration using red gypsum via pH-swing process: Effect of carbonation temperature and NH4HCO3 on the process efficiency",

abstract = "The main purpose of this study is to investigate the effect of reaction temperature and NH4HCO3 on the overall performance of a pH swing mineral carbonation. The overall performance of the pH swing process is investigated in terms of carbonation efficiency and product purity. Initially, 2 M H2SO4 is used for red gypsum dissolution at 70 °C. Then in the second stage, NH4OH is added for increasing the solution pH and removing the impurities from solutions. Finally, CO32– is introduced to calcium rich solution in the form of pure CO2 and NH4HCO3. The experimental results show that using NH4HCO3 improves carbonation efficiency and product purity. Carbonation efficiency attains a maximum value at 75 °C and then decreases gradually with increasing temperature up to 300 °C, with both CO2 and NH4HCO3. In this research, CaCO3 with the maximum purity of 99.05% is produced successfully when NH4HCO3 is used as a CO32– source.",

keywords = "CO2 sequestration, carbon capture and storage, mineral carbonation, calcium carbonate, pH swing",

author = "Amin Azdarpour and {Afkhami Karaei}, Mohammad and Hossein Hamidi and Erfan Mohammadian and Maryam Barati and Bijan Honarvar",

note = "The authors would like to appreciate the Department of Petroleum Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran for the provision of the laboratory facilities necessary for completing this work. We would also like to thank Dr. Peter Dunning from University of Aberdeen for English proofreading of this manuscript.",

year = "2017",

month = dec,

day = "10",

doi = "10.1016/j.minpro.2017.09.014",

language = "English",

volume = "169",

pages = "27--34",

journal = "International Journal of Mineral Processing",

issn = "0301-7516",

publisher = "Elsevier",

}

TY - JOUR

T1 - CO2 sequestration using red gypsum via pH-swing process

T2 - Effect of carbonation temperature and NH4HCO3 on the process efficiency

AU - Azdarpour, Amin

AU - Afkhami Karaei, Mohammad

AU - Hamidi, Hossein

AU - Mohammadian, Erfan

AU - Barati, Maryam

AU - Honarvar, Bijan

N1 - The authors would like to appreciate the Department of Petroleum Engineering, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran for the provision of the laboratory facilities necessary for completing this work. We would also like to thank Dr. Peter Dunning from University of Aberdeen for English proofreading of this manuscript.

PY - 2017/12/10

Y1 - 2017/12/10

N2 - The main purpose of this study is to investigate the effect of reaction temperature and NH4HCO3 on the overall performance of a pH swing mineral carbonation. The overall performance of the pH swing process is investigated in terms of carbonation efficiency and product purity. Initially, 2 M H2SO4 is used for red gypsum dissolution at 70 °C. Then in the second stage, NH4OH is added for increasing the solution pH and removing the impurities from solutions. Finally, CO32– is introduced to calcium rich solution in the form of pure CO2 and NH4HCO3. The experimental results show that using NH4HCO3 improves carbonation efficiency and product purity. Carbonation efficiency attains a maximum value at 75 °C and then decreases gradually with increasing temperature up to 300 °C, with both CO2 and NH4HCO3. In this research, CaCO3 with the maximum purity of 99.05% is produced successfully when NH4HCO3 is used as a CO32– source.

AB - The main purpose of this study is to investigate the effect of reaction temperature and NH4HCO3 on the overall performance of a pH swing mineral carbonation. The overall performance of the pH swing process is investigated in terms of carbonation efficiency and product purity. Initially, 2 M H2SO4 is used for red gypsum dissolution at 70 °C. Then in the second stage, NH4OH is added for increasing the solution pH and removing the impurities from solutions. Finally, CO32– is introduced to calcium rich solution in the form of pure CO2 and NH4HCO3. The experimental results show that using NH4HCO3 improves carbonation efficiency and product purity. Carbonation efficiency attains a maximum value at 75 °C and then decreases gradually with increasing temperature up to 300 °C, with both CO2 and NH4HCO3. In this research, CaCO3 with the maximum purity of 99.05% is produced successfully when NH4HCO3 is used as a CO32– source.

KW - CO2 sequestration

KW - carbon capture and storage

KW - mineral carbonation

KW - calcium carbonate

KW - pH swing

U2 - 10.1016/j.minpro.2017.09.014

DO - 10.1016/j.minpro.2017.09.014

M3 - Article

SN - 0301-7516

VL - 169

SP - 27

EP - 34

JO - International Journal of Mineral Processing

JF - International Journal of Mineral Processing

ER -

CO2 sequestration using red gypsum via pH-swing process: Effect of carbonation temperature and NH4HCO3 on the process efficiency

Abstract

Bibliographical note

Keywords

Access to Document

Fingerprint

Cite this