REMOVAL OF NAPHTENIC ACIDITY OF JET FUEL BY ADSORPTION WITH MCM-41 MOLECULAR SIEVE

Volume 4, Issue 4, August 2019     |     PP. 124-136      |     PDF (479 K)    |     Pub. Date: September 25, 2019
DOI:    232 Downloads     6954 Views  

Author(s)

Genilson A. da Silva, Celmy M. B. M. Barbosa
Antônio S. Araújo, Department of Chemistry, Federal University of Rio Grande do Norte, RN, Brazil
Monica S. A. Abreu, Department of Chemical Engineering, Federal University of Pernambuco, PE, Brazil
Cesar A. M. de Abreu, Department of Chemical Engineering, Federal University of Pernambuco, PE, Brazil
Celmy M. B. M. Barbosa, Department of Chemical Engineering, Federal University of Pernambuco, PE, Brazil

Abstract
The removal of naphthenic acid was carried out with mesoporous molecular sieves, types MCM-41 and MgMCM-41. These materials were synthesized and characterized, and employed as adsorbents for the removal of n-dodecanoic acid from a jet fuel model solution with n-dodecane. Different concentrations of n-dodecanoic acid in the initial solutions showed different equilibrium concentrations, highlighting data that were represented by isotherms of type IV BET. The capacity of the molecular sieve for n-dodecanoic acid adsorption was improved, circa 130 %, when magnesium was incorporated in the structure. The maximum adsorption capacities reached values of 0.62 g/g for MCM-41 and1.48 g/g for MgMCM-41. In adsorption experiments, at 300 K, n-dodecanoic acid removals of 28.02 % and 42.67 % were obtained with MCM-41 and MgMCM-41, respectively.

Keywords
MCM-41 molecular sieve, mesoporous, adsorption, jet fuel, naphtenic acid removal.

Cite this paper
Genilson A. da Silva, Antônio S. Araújo, Monica S. A. Abreu, Cesar A. M. de Abreu, Celmy M. B. M. Barbosa, REMOVAL OF NAPHTENIC ACIDITY OF JET FUEL BY ADSORPTION WITH MCM-41 MOLECULAR SIEVE , SCIREA Journal of Chemistry. Volume 4, Issue 4, August 2019 | PP. 124-136.

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