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Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction

Many mineral wastes that produced in Malaysia have the potential candidates for CO2 mineral sequestration. One of them is by using coal fly ash. Therefore, to reduce CO2 from escaping towards the surroundings, carbonation (namely indirect carbonation) process is used to capture CO2. Indirect carbona...

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Main Author: Omar Saifuddin, Nurul Athira
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2018
Subjects:
T Technology
TP Chemical Technology
Online Access:http://eprints.usm.my/53764/1/Indirect%20Carbonation%20Of%20Coal%20Fly%20Ash%20For%20Carbon%20Dioxide%20Captured%20Via%20Mechanochemical%20Reaction_Nurul%20Athira%20Omar%20Saifuddin_K4_2018.pdf
http://eprints.usm.my/53764/
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spelling my.usm.eprints.53764 http://eprints.usm.my/53764/ Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction Omar Saifuddin, Nurul Athira T Technology TP Chemical Technology Many mineral wastes that produced in Malaysia have the potential candidates for CO2 mineral sequestration. One of them is by using coal fly ash. Therefore, to reduce CO2 from escaping towards the surroundings, carbonation (namely indirect carbonation) process is used to capture CO2. Indirect carbonation undergoes calcium extraction, followed by carbonation process using planetary ball mill. In extraction process, the influence of milling time, milling rotational speed and solid-liquid-ratio were explored. Increasing the milling time from 10 to 180 minutes and rotational speed from 100 to 400 rpm subtly increases the amount of calcium extracted. In carbonation process, KHCO3 was used as a carbonating agent in this study where the concentration was varied. At concentration from 2.5 to 5.5 mol/L, shows increasing of amount calcium being extracted. Addition to it, CO2 capacity of coal fly ash also increased due to the activation extraction of mineral particles especially calcium. The highest CO2 capacity and calcium extracted achieved were at 0.2310 g CO2/g CFA and 0.210 g Ca2+/g CFA. Using similar operating conditions, the carbonation was repeated using open vessel microwave. Planetary ball mill demonstrates higher carbonation efficiency compared to microwave. It gave positive impact shown by planetary ball mill where the amount of calcium extracted and the ability to sequestrate CO2 is higher as compared to microwave. Lastly, CFA were characterized using scanning electron microscopy (SEM) and FTIR spectrometer. Universiti Sains Malaysia 2018-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/53764/1/Indirect%20Carbonation%20Of%20Coal%20Fly%20Ash%20For%20Carbon%20Dioxide%20Captured%20Via%20Mechanochemical%20Reaction_Nurul%20Athira%20Omar%20Saifuddin_K4_2018.pdf Omar Saifuddin, Nurul Athira (2018) Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Kimia. (Submitted)
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T Technology
TP Chemical Technology
spellingShingle T Technology
TP Chemical Technology
Omar Saifuddin, Nurul Athira
Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction
description Many mineral wastes that produced in Malaysia have the potential candidates for CO2 mineral sequestration. One of them is by using coal fly ash. Therefore, to reduce CO2 from escaping towards the surroundings, carbonation (namely indirect carbonation) process is used to capture CO2. Indirect carbonation undergoes calcium extraction, followed by carbonation process using planetary ball mill. In extraction process, the influence of milling time, milling rotational speed and solid-liquid-ratio were explored. Increasing the milling time from 10 to 180 minutes and rotational speed from 100 to 400 rpm subtly increases the amount of calcium extracted. In carbonation process, KHCO3 was used as a carbonating agent in this study where the concentration was varied. At concentration from 2.5 to 5.5 mol/L, shows increasing of amount calcium being extracted. Addition to it, CO2 capacity of coal fly ash also increased due to the activation extraction of mineral particles especially calcium. The highest CO2 capacity and calcium extracted achieved were at 0.2310 g CO2/g CFA and 0.210 g Ca2+/g CFA. Using similar operating conditions, the carbonation was repeated using open vessel microwave. Planetary ball mill demonstrates higher carbonation efficiency compared to microwave. It gave positive impact shown by planetary ball mill where the amount of calcium extracted and the ability to sequestrate CO2 is higher as compared to microwave. Lastly, CFA were characterized using scanning electron microscopy (SEM) and FTIR spectrometer.
format Monograph
author Omar Saifuddin, Nurul Athira
author_facet Omar Saifuddin, Nurul Athira
author_sort Omar Saifuddin, Nurul Athira
title Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction
title_short Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction
title_full Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction
title_fullStr Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction
title_full_unstemmed Indirect Carbonation Of Coal Fly Ash For Carbon Dioxide Captured Via Mechanochemical Reaction
title_sort indirect carbonation of coal fly ash for carbon dioxide captured via mechanochemical reaction
publisher Universiti Sains Malaysia
publishDate 2018
url http://eprints.usm.my/53764/1/Indirect%20Carbonation%20Of%20Coal%20Fly%20Ash%20For%20Carbon%20Dioxide%20Captured%20Via%20Mechanochemical%20Reaction_Nurul%20Athira%20Omar%20Saifuddin_K4_2018.pdf
http://eprints.usm.my/53764/
_version_ 1740826574184251392
score 13.211869

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