Carbones activados a partir de anamú (Petiveria alliacea L.). Sus Características como adsorbente. Parte I. Adsorción de CO2 y NH3 D

Authors

  • Miguel A.,Alien,Giselle,Serafín. Autie,Blanco,Autie,Ricardo.

Abstract

Activated carbon by physical and chemical activation, without previous carbonization, were obtained from
anamú (Petiveria Alliacea Linn). The chemical activation were made through impregnations of vegetable precursor with
phosphoric acid in relations 0.35 y 0.50 g/g . The physical activation was made directly without precursor modification.
The adsorption capacities of obtained carbons were evaluated through CO2 and NH3 adsorption. Experimental adsoption
isoterms were fitted with Theory of Volume Filling of Microporous or Dubinin Model (TVFM) which showed (through CO2
adsorption) that the obtained carbons had microporous characteristics with porous diameters comparable with molecular
sieve carbons. The experimental data showed that the adsorption capacities of CO2 and NH3 of chemical activated carbon
with 0.50 of phosphoric acid had the higher values. The data also showed that some quantities of NH3 were adsorbed irreversible,
probably by the prescense of functional groups and mineral elements on the surface with higher acid-base
interaction capacities. The maximal adsortions and characteristic energies values showed that the chemical activated carbon
with 0.50 g/g of phosphoric acid could be used as adsorbent of CO2 and NH3 above all if they were in lower concentrations.

Published

2019-09-19

How to Cite

Autie,Blanco,Autie,Ricardo., M. A. (2019). Carbones activados a partir de anamú (Petiveria alliacea L.). Sus Características como adsorbente. Parte I. Adsorción de CO2 y NH3 D. NATIONAL CENTER FOR SCIENTIFIC RESEARCH (CENIC) CHEMICAL SCIENCES JOURNAL, 42(1), 7. Retrieved from https://revista.cnic.edu.cu/index.php/RevQuim/article/view/252

Issue

Section

Research articles