Avaluadó de la reacdó-adsordó de ions Ca2+ en cendres de bagàs de canya de sucre. Aproximacions cinètiques i termodinàmiques

Julio O. Prieto-Garcí; Luis E. Arteaga-Pérez; Joan Rodríguez-Díaz; Manuel Treto Suárez; Rafael Quintana-Puchol; Adrian Alujas-Díaz

Avaluadó de la reacdó-adsordó de ions Ca²⁺ en cendres de bagàs de canya de sucre. Aproximacions cinètiques i termodinàmiques

Translated title of the contribution: Evaluation of the coupled reaction-adsorption of Ca²⁺ ions on ashes from sugar cane bagasse. Kinetic and thermodynamic approaches

Julio O. Prieto-Garcí
, Luis E. Arteaga-Pérez^*
, Joan Rodríguez-Díaz
, Manuel Treto Suárez
, Rafael Quintana-Puchol
, Adrian Alujas-Díaz

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

The adsorption of Ca²⁺ ions and the pozzolanic reaction between ashes from sugar cane bagasse (bio-reactant) and Ca(OH)₂, are studied in the present paper. The characterization of the bio-reactant by means of XRD, specific surface Brunauer-Emmett-Teller (BET), thermal differential analysis (TDA), thermo-gravimetric analysis and other physical parameters such as pignometric density, porosity, compressibility, form factor and flow velocity, is developed. A four stages mechanism is proposed to describe the pozzolanic reaction according to Zhulaev postulations. Once the reaction takes place, an 85.15% of Ca²⁺ is converted and the rest remains as adsorbed specie validating a dual adsorption-reaction process. The kinetics of the adsorption process can be described by means of a pseudo-first order model and the mechanism is controlled by the film diffusion model. The thermodynamics of the adsorption process fits to the Freundlich isotherm.

Translated title of the contribution	Evaluation of the coupled reaction-adsorption of Ca²⁺ ions on ashes from sugar cane bagasse. Kinetic and thermodynamic approaches
Original language	Spanish
Pages (from-to)	289-294
Number of pages	6
Journal	Afinidad
Volume	69
Issue number	560
Publication status	Published - Oct 2012
Externally published	Yes

Cite this

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title = "Avaluad{\'o} de la reacd{\'o}-adsord{\'o} de ions Ca2+ en cendres de bag{\`a}s de canya de sucre. Aproximacions cin{\`e}tiques i termodin{\`a}miques",

abstract = "The adsorption of Ca2+ ions and the pozzolanic reaction between ashes from sugar cane bagasse (bio-reactant) and Ca(OH)2, are studied in the present paper. The characterization of the bio-reactant by means of XRD, specific surface Brunauer-Emmett-Teller (BET), thermal differential analysis (TDA), thermo-gravimetric analysis and other physical parameters such as pignometric density, porosity, compressibility, form factor and flow velocity, is developed. A four stages mechanism is proposed to describe the pozzolanic reaction according to Zhulaev postulations. Once the reaction takes place, an 85.15\% of Ca2+ is converted and the rest remains as adsorbed specie validating a dual adsorption-reaction process. The kinetics of the adsorption process can be described by means of a pseudo-first order model and the mechanism is controlled by the film diffusion model. The thermodynamics of the adsorption process fits to the Freundlich isotherm.",

keywords = "Adsorption, Kinetics, Pozzolanic reaction, Thermodynamics",

author = "Prieto-Garc{\'i}, \{Julio O.\} and Arteaga-P{\'e}rez, \{Luis E.\} and Joan Rodr{\'i}guez-D{\'i}az and Su{\'a}rez, \{Manuel Treto\} and Rafael Quintana-Puchol and Adrian Alujas-D{\'i}az",

year = "2012",

month = oct,

language = "Espa{\~n}ol",

volume = "69",

pages = "289--294",

journal = "Afinidad",

issn = "0001-9704",

publisher = "Asociacion de Quimicos del Instituto Quimico de Sarria",

number = "560",

}

TY - JOUR

T1 - Avaluadó de la reacdó-adsordó de ions Ca2+ en cendres de bagàs de canya de sucre. Aproximacions cinètiques i termodinàmiques

AU - Prieto-Garcí, Julio O.

AU - Arteaga-Pérez, Luis E.

AU - Rodríguez-Díaz, Joan

AU - Suárez, Manuel Treto

AU - Quintana-Puchol, Rafael

AU - Alujas-Díaz, Adrian

PY - 2012/10

Y1 - 2012/10

N2 - The adsorption of Ca2+ ions and the pozzolanic reaction between ashes from sugar cane bagasse (bio-reactant) and Ca(OH)2, are studied in the present paper. The characterization of the bio-reactant by means of XRD, specific surface Brunauer-Emmett-Teller (BET), thermal differential analysis (TDA), thermo-gravimetric analysis and other physical parameters such as pignometric density, porosity, compressibility, form factor and flow velocity, is developed. A four stages mechanism is proposed to describe the pozzolanic reaction according to Zhulaev postulations. Once the reaction takes place, an 85.15% of Ca2+ is converted and the rest remains as adsorbed specie validating a dual adsorption-reaction process. The kinetics of the adsorption process can be described by means of a pseudo-first order model and the mechanism is controlled by the film diffusion model. The thermodynamics of the adsorption process fits to the Freundlich isotherm.

AB - The adsorption of Ca2+ ions and the pozzolanic reaction between ashes from sugar cane bagasse (bio-reactant) and Ca(OH)2, are studied in the present paper. The characterization of the bio-reactant by means of XRD, specific surface Brunauer-Emmett-Teller (BET), thermal differential analysis (TDA), thermo-gravimetric analysis and other physical parameters such as pignometric density, porosity, compressibility, form factor and flow velocity, is developed. A four stages mechanism is proposed to describe the pozzolanic reaction according to Zhulaev postulations. Once the reaction takes place, an 85.15% of Ca2+ is converted and the rest remains as adsorbed specie validating a dual adsorption-reaction process. The kinetics of the adsorption process can be described by means of a pseudo-first order model and the mechanism is controlled by the film diffusion model. The thermodynamics of the adsorption process fits to the Freundlich isotherm.

KW - Adsorption

KW - Kinetics

KW - Pozzolanic reaction

KW - Thermodynamics

UR - https://www.scopus.com/pages/publications/84876269250

M3 - Artículo

AN - SCOPUS:84876269250

SN - 0001-9704

VL - 69

SP - 289

EP - 294

JO - Afinidad

JF - Afinidad

IS - 560

ER -

Avaluadó de la reacdó-adsordó de ions Ca²⁺ en cendres de bagàs de canya de sucre. Aproximacions cinètiques i termodinàmiques

Abstract

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