Publicación:
ADSORPTION ABILITY OF ACTIVATED CARBON OBTAINED FROM SUB-BITUMINOUS COAL (LEBU, CHILE) TO CAPTURE TRIMETHYLAMINE

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dc.creatorPAOLA ANDREA MÉNDEZ HERRERA
dc.creatorJAIME ROBERTO CABRERA PARDO
dc.creatorCHRISTIAN MARCELO NÚÑEZ DURÁN
dc.date2019
dc.date.accessioned2025-01-10T15:09:43Z
dc.date.available2025-01-10T15:09:43Z
dc.date.issued2019
dc.description.abstractTHE REMOVAL OF ORGANIC CONTAMINANTS, ESPECIALLY TRIMETHYLAMINE (TMA), HAVE BEEN SUCCESSFULLY ACHIEVED USING CARBON ACTIVATE. IN THIS ARTICLE, WE REPORT THE FORMATION OF CARBON ACTIVATE (CA-SM) ISOLATED FROM SUB-BITUMINOUS COAL IN SMALL MANTLES (SM) AT THE MINE ?MANTOS NEGROS? (LEBU, CHILE). THIS COAL WAS SUBJECTED TO THERMAL OXIDATION WITH CO2 AT 950 °C AND THEIR TMA ADSORPTION CAPACITY EVALUATED. SM AND CA-SM WERE PHYSICALLY AND CHEMICALLY CHARACTERIZED SHOWING THAT THE ACTIVATED CARBON INCREASED THE SURFACE POROSITY AS WELL AS THE IODINE INDEX FROM 2.5 MG I2/G TO 434 MG I2/G COAL. THE PROXIMAL AND ELEMENTARY ANALYSES OF CASM SHOWED A SIGNIFICANT REDUCTION OF SULFUR, NITROGEN AND HYDROGEN, AND INCREASED COMPOSITION OF CARBON AND OXYGEN. THESE RESULTS TOGETHER WITH FTIR AND BOEHM TITRATION SUGGEST THAT THE SURFACE COMPOSITION OF THE ACTIVATED CARBON IS ACIDIC IN NATURE. THE ADSORPTION OF TMA BY CA-SM WAS EVALUATED IN DISSOLUTION AT DIFFERENT PH AND EXPOSURE TIME CONDITIONS. WE FOUND THAT TMA CAN BE FULLY ABSORBED (50 ML TMA AT 4 MG/L AND 0.2000G OF CA-SM) UNDER NEUTRAL AND BASIC PH AFTER 60 MINUTES OF EXPOSURE. THE FEASIBILITY OF PRODUCING ACTIVATED CARBON FROM SUB-BITUMINOUS COAL FROM PROVINCE OF ARAUCO, CHILE, IS A PROMISING ALTERNATIVE TO DEVELOP COAL-BASED PRODUCTS DISPLAYING ADSORBENT PROPERTIES USEFUL TO CONTROL AMINE-DERIVED CONTAMINANTS PRODUCED IN THE FISHING INDUSTRY.
dc.formatapplication/pdf
dc.identifier.doi10.4067/S0717-97072019000304582
dc.identifier.issn0717-9707
dc.identifier.issn0717-9707
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/10712
dc.languagespa
dc.publisherJOURNAL OF THE CHILEAN CHEMICAL SOCIETY
dc.relation.uri10.4067/S0717-97072019000304582
dc.rightsPUBLICADA
dc.titleADSORPTION ABILITY OF ACTIVATED CARBON OBTAINED FROM SUB-BITUMINOUS COAL (LEBU, CHILE) TO CAPTURE TRIMETHYLAMINE
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE QUIMICA
ubb.Otra ReparticionDEPARTAMENTO DE QUIMICA
ubb.Otra ReparticionDEPARTAMENTO DE QUIMICA
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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