@Article{ArceFerrufinoOkSaCaAvRoSo:2018:CO2Se,
author = "Arce Ferrufino, Gretta Larisa Aurora and Okamoto, Sayuri and
Santos, Jos{\'e} Carlos dos and Carvalho J{\'u}nior, Jo{\~a}o
Andrade de and Avila, I. and Romero Luna, Carlos Manuel and Soares
Neto, Turibio Gomes",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Universidade Estadual Paulista
(UNESP)} and {Universidade Estadual Paulista (UNESP)} and
{Universidade Estadual Paulista (UNESP)} and {Instituto Nacional
de Pesquisas Espaciais (INPE)}",
title = "CO 2 sequestration by pH-swing mineral carbonation based on HCl/NH
4 OH system using iron-rich lizardite 1T",
journal = "Journal of CO2 Utilization",
year = "2018",
volume = "24",
pages = "164--173",
keywords = "mining waste, Lizardite 1T, pH-swing mineral carbonation,
HCl/NH4OH system, Carbonates, CO2 sequestration.",
abstract = "In pH-swing mineral carbonation, several acid/base systems has
been investigated. Currently the main acid/base systems employed
are HCl/NaOH and NH4HSO4/NH4OH. However, the use of a HCl/NH4OH
system was not yet elucidated. This study proposes to evaluate the
feasibility of a pH-swing mineral carbonation based on HCl/ NH4OH
system at atmospheric pressure and moderate temperatures using
mining waste from asbestos production from Goi{\'a}s State,
Brazil (S-GO) for two conditions (i.e. stoichiometric conditions
(T2E) and acid excess (T2)). Results indicated that the Fe3+
content in S-GO acted as a catalyst, due to FeCl3 hydrolysis in
aqueous solutions. Thus, high Mg and Fe extraction efficiency (95
± 2%), were achieved in the leaching stage for both conditions.
The S1 solid residue was mainly SiO2 with 90 ± 1% purity content.
In the purification stage 91.7 ± 1.9% of Fet were removed,
however, a loss of Mg of 13.6 ± 2.3% was also detected. On the
carbonation stage, high purity hydromagnesite was formed in T2E;
this stage had a 85% efficiency, thus, 36.7% of CO2 was fixed. On
T2, excess H2O and CO2 promoted dypingite formation and reduced
hydromagnesite formation. After carbonation, the formation of
crystals was observed in the NH4Cl aqueous solution at 25 °C,
indicating NH4Cl supersaturation. The results of mass balance
indicate that 4 ton of mineral waste will be employed for each ton
of captured CO2, as well as 2.6 ton of HCl, and 4.5 ton of NH4OH.
However, 1.7 ton of SiO2, 0.55 ton of iron oxides, and 2.7 ton of
hydromagnesite could be produced.",
doi = "10.1016/j.jcou.2018.01.001",
url = "http://dx.doi.org/10.1016/j.jcou.2018.01.001",
issn = "2212-9820",
label = "lattes: 8314297275332134 2 ArceFerrufinoOkSaCaAvRoGo:2018:CO2Se",
language = "en",
targetfile = "ferrufino_co2.pdf",
urlaccessdate = "27 abr. 2024"
}