Carbón activado de semillas de tomate para adsorción de vapores de amoniaco, benceno y gasolina//Activated coal of tomato seeds for adsorption of vapors of ammonia, benzene and gasoline

Authors

  • Francisco Márquez-Montesino Universidad de Pinar del Río, Facultad de Ciencias Técnicas, Pinar del Río.
  • Rolando Zanzi-Vigouroux Department of Chemical Engineering, Royal Institute of Technology (KTH), Stockholm.
  • Daniella Birbas Department of Chemical Engineering, Royal Institute of Technology (KTH), Stockholm.
  • Leonardo Aguiar-Trujillo Universidad de Pinar del Río, Facultad de Ciencias Técnicas, Pinar del Río.
  • Boris Abel Ramos-Robaina Universidad de Pinar del Río, Facultad de Ciencias Técnicas, Pinar del Río.

Abstract

El objetivo fue comprobar las posibilidades de adsorción de amoniaco, benceno y gasolina en carbones activados, de semillas de tomate. Se realizó un análisis inmediato a la biomasa. Se concluyó que la adsorción de vapores de amoniaco, está relacionada con la adsorción física y con la presencia de grupos
funcionales de carácter ácido en la superficie activa de los carbones, que forman enlaces débiles con las moléculas de amoniaco. Se realizaron experimentos de adsorción de benceno y gasolina, que no tienen grupos funcionales como el amoniaco, siendo menos adsorbidos, confirmándose una adsorción preferentemente química. La temperatura de activación, la relación de impregnación (RI) y la
concentración de la disolución ácida, no tuvieron una influencia significativa en la capacidad de adsorción de benceno, pero sí en la adsorción de amoniaco y vapores de gasolina, de gran aplicación para la eliminación de los vapores de escape en los motores de vehículos.

Palabras claves: carbón, activación, adsorción, vapores, amoníaco.
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Abstract

The objective was to prove the adsorption possibilities of ammonia, benzene and vapors of gasoline in activated coals with phosphoric acid, of tomato seed. An immediate analysis to the biomass was carried out. It was concluded that the vapors adsorption of ammonia, is related with the physical adsorption and
the presence of functional groups of acid character in the active surface of the coal that form weak connections with the molecules of ammonia. Experiments of adsorption of benzene and gasoline were carried out, these substances haven't functional groups as the ammonia, so they were less adsorbed, and it was confirmed a chemical adsorption preferably. The activation temperature, the relationship of impregnation (RI) and the concentration of the acid dissolution haven't a significant influence in the capacity of adsorption of benzene, but they have in the adsorption of ammonia and vapors of gasoline, it's of great application for the elimination of vapors' escape in the motors of vehicles.

Key words: coal, activation, adsorption, vapors, ammonia

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How to Cite

1.
Márquez-Montesino F, Zanzi-Vigouroux R, Birbas D, Aguiar-Trujillo L, Ramos-Robaina BA. Carbón activado de semillas de tomate para adsorción de vapores de amoniaco, benceno y gasolina//Activated coal of tomato seeds for adsorption of vapors of ammonia, benzene and gasoline. Ing. Mec. [Internet]. 2013 May 1 [cited 2025 Sep. 13];16(2):83-90. Available from: https://ingenieriamecanica.cujae.edu.cu/index.php/revistaim/article/view/444

Issue

Vol. 16 No. 2 (2013): mayo-agosto

Section

Original article

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