STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITY

This study reports the adsorption and catalytic conversion of abietic acid as representative compound of tall oil, using activated carbons. Acid functional groups present on CGRAN activated carbons favored the adsorption of abietic acid, probably through a physical adsorption mechanism. In contrast,...

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Autores principales:	GARCÍA,RAFAEL, PERALTA,LORENA, SEGURA,CRISTINA, SEPÚLVEDA,CATHERINE, GHAMPSON,I. TYRONE, ESCALONA,NESTOR
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2016
Materias:	Activated carbon abietic acid tall oil adsorption capacity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000400018
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spelling	oai:scielo:S0717-970720160004000182017-01-16STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITYGARCÍA,RAFAELPERALTA,LORENASEGURA,CRISTINASEPÚLVEDA,CATHERINEGHAMPSON,I. TYRONEESCALONA,NESTOR Activated carbon abietic acid tall oil adsorption capacity This study reports the adsorption and catalytic conversion of abietic acid as representative compound of tall oil, using activated carbons. Acid functional groups present on CGRAN activated carbons favored the adsorption of abietic acid, probably through a physical adsorption mechanism. In contrast, the conversion of abietic acid was not favored in DARCO activated carbon by increase of acid sites thought HNO3 treatment. The detection of neoabietic, palustric and/or levopimaric acids as reaction products indicate that the transformation of abietic acid was by dehydrogenation and/or isomerization routes. The negative influence of acid sites on the catalytic activity, in addition to the non-detection of volatile products, suggests that the cracking pathway for the conversion of abietic acid over these catalysts can be ruled out. Contrasting effects of the surface groups on the adsorption capacity and the conversion was observed: strong acid sites of CGRAN activated carbon favor the adsorption of abietic acid and decrease competitive adsorption between substrate and solvent, while conversion is not favored by these acid sites.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.61 n.4 20162016-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000400018en10.4067/S0717-97072016000400018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Activated carbon abietic acid tall oil adsorption capacity
spellingShingle	Activated carbon abietic acid tall oil adsorption capacity GARCÍA,RAFAEL PERALTA,LORENA SEGURA,CRISTINA SEPÚLVEDA,CATHERINE GHAMPSON,I. TYRONE ESCALONA,NESTOR STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITY
description	This study reports the adsorption and catalytic conversion of abietic acid as representative compound of tall oil, using activated carbons. Acid functional groups present on CGRAN activated carbons favored the adsorption of abietic acid, probably through a physical adsorption mechanism. In contrast, the conversion of abietic acid was not favored in DARCO activated carbon by increase of acid sites thought HNO3 treatment. The detection of neoabietic, palustric and/or levopimaric acids as reaction products indicate that the transformation of abietic acid was by dehydrogenation and/or isomerization routes. The negative influence of acid sites on the catalytic activity, in addition to the non-detection of volatile products, suggests that the cracking pathway for the conversion of abietic acid over these catalysts can be ruled out. Contrasting effects of the surface groups on the adsorption capacity and the conversion was observed: strong acid sites of CGRAN activated carbon favor the adsorption of abietic acid and decrease competitive adsorption between substrate and solvent, while conversion is not favored by these acid sites.
author	GARCÍA,RAFAEL PERALTA,LORENA SEGURA,CRISTINA SEPÚLVEDA,CATHERINE GHAMPSON,I. TYRONE ESCALONA,NESTOR
author_facet	GARCÍA,RAFAEL PERALTA,LORENA SEGURA,CRISTINA SEPÚLVEDA,CATHERINE GHAMPSON,I. TYRONE ESCALONA,NESTOR
author_sort	GARCÍA,RAFAEL
title	STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITY
title_short	STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITY
title_full	STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITY
title_fullStr	STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITY
title_full_unstemmed	STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITY
title_sort	study of the catalytic conversion and adsorption of abietic acid on activated carbon: effect of surface acidity
publisher	Sociedad Chilena de Química
publishDate	2016
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072016000400018
work_keys_str_mv	AT garciarafael studyofthecatalyticconversionandadsorptionofabieticacidonactivatedcarboneffectofsurfaceacidity AT peraltalorena studyofthecatalyticconversionandadsorptionofabieticacidonactivatedcarboneffectofsurfaceacidity AT seguracristina studyofthecatalyticconversionandadsorptionofabieticacidonactivatedcarboneffectofsurfaceacidity AT sepulvedacatherine studyofthecatalyticconversionandadsorptionofabieticacidonactivatedcarboneffectofsurfaceacidity AT ghampsonityrone studyofthecatalyticconversionandadsorptionofabieticacidonactivatedcarboneffectofsurfaceacidity AT escalonanestor studyofthecatalyticconversionandadsorptionofabieticacidonactivatedcarboneffectofsurfaceacidity
_version_	1714200902628278272

STUDY OF THE CATALYTIC CONVERSION AND ADSORPTION OF ABIETIC ACID ON ACTIVATED CARBON: EFFECT OF SURFACE ACIDITY

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