Fechar
Metadados

@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 = "24 nov. 2020"
}


Fechar