Nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration
Carbon dioxide mitigation through mineral carbonation is still economically inefficient, despite the mounting knowledge pool on the subject. This inefficiency is due to high energy demand, slow reaction kinetics and low conversion degrees (and implicitly limited CO2 sequestration). Additive usage re...
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ftunivleuven:oai:lirias.kuleuven.be:123456789/421060 2023-05-15T15:52:31+02:00 Nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration Bodor, Marius Santos, Rafael Chiang, Yi Wai Vlad, Maria Van Gerven, Tom 2013-10-28 https://lirias.kuleuven.be/handle/123456789/421060 en eng New Trends in Environmental and Materials Engineering (TEME 2013) location:Galati, Romania date:28-30 October 2013 https://lirias.kuleuven.be/handle/123456789/421060 nickel nanoparticles mineral carbonation steelmaking slags catalytic additive carbonic acid Conference paper/abstract IMa conference_paper 2013 ftunivleuven 2014-03-04T18:59:13Z Carbon dioxide mitigation through mineral carbonation is still economically inefficient, despite the mounting knowledge pool on the subject. This inefficiency is due to high energy demand, slow reaction kinetics and low conversion degrees (and implicitly limited CO2 sequestration). Additive usage remains an interesting choice to accelerate CO2 absorption, especially if mild process conditions can be maintained. Most research conducted to date has sought additives to increase mineral dissolution and carbonate precipitation. This work presents a different approach regarding the use of pure nickel nanoparticles (NiNP) as a mineral carbonation additive. The mechanism of NiNP, of catalytic nature, is based on increasing the quantities of dissolved CO2 and dissociated carbonic acid in the process water, thus increasing the concentration of bicarbonate ions available to react with solubilised alkaline earth metals. This effect has the potential to reduce the time needed to reach a certain level of conversion through mineral carbonation. This study presents results and discussions regarding the effect of NiNP on the CO2 mineralization by four alkaline materials (pure CaO and MgO, and AOD and CC steelmaking slags), on the product mineralogy, on the particle size distribution, and on the morphology of resulting materials. status: accepted Conference Object Carbonic acid KU Leuven: Lirias |
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KU Leuven: Lirias |
op_collection_id |
ftunivleuven |
language |
English |
topic |
nickel nanoparticles mineral carbonation steelmaking slags catalytic additive carbonic acid |
spellingShingle |
nickel nanoparticles mineral carbonation steelmaking slags catalytic additive carbonic acid Bodor, Marius Santos, Rafael Chiang, Yi Wai Vlad, Maria Van Gerven, Tom Nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration |
topic_facet |
nickel nanoparticles mineral carbonation steelmaking slags catalytic additive carbonic acid |
description |
Carbon dioxide mitigation through mineral carbonation is still economically inefficient, despite the mounting knowledge pool on the subject. This inefficiency is due to high energy demand, slow reaction kinetics and low conversion degrees (and implicitly limited CO2 sequestration). Additive usage remains an interesting choice to accelerate CO2 absorption, especially if mild process conditions can be maintained. Most research conducted to date has sought additives to increase mineral dissolution and carbonate precipitation. This work presents a different approach regarding the use of pure nickel nanoparticles (NiNP) as a mineral carbonation additive. The mechanism of NiNP, of catalytic nature, is based on increasing the quantities of dissolved CO2 and dissociated carbonic acid in the process water, thus increasing the concentration of bicarbonate ions available to react with solubilised alkaline earth metals. This effect has the potential to reduce the time needed to reach a certain level of conversion through mineral carbonation. This study presents results and discussions regarding the effect of NiNP on the CO2 mineralization by four alkaline materials (pure CaO and MgO, and AOD and CC steelmaking slags), on the product mineralogy, on the particle size distribution, and on the morphology of resulting materials. status: accepted |
format |
Conference Object |
author |
Bodor, Marius Santos, Rafael Chiang, Yi Wai Vlad, Maria Van Gerven, Tom |
author_facet |
Bodor, Marius Santos, Rafael Chiang, Yi Wai Vlad, Maria Van Gerven, Tom |
author_sort |
Bodor, Marius |
title |
Nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration |
title_short |
Nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration |
title_full |
Nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration |
title_fullStr |
Nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration |
title_full_unstemmed |
Nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration |
title_sort |
nickel nanoparticles utilization as a catalytic additive for mineral carbonation process acceleration |
publishDate |
2013 |
url |
https://lirias.kuleuven.be/handle/123456789/421060 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
New Trends in Environmental and Materials Engineering (TEME 2013) location:Galati, Romania date:28-30 October 2013 https://lirias.kuleuven.be/handle/123456789/421060 |
_version_ |
1766387675026161664 |