Absorción de dióxido de carbono, a elevadas presiones parciales, por disoluciones acuosas de mezclas binarias de alcanoaminas

  1. Ana Belén López García
Supervised by:
  1. Rafael Pacheco Reyes Director
  2. Sebastián Sánchez Villasclaras Director
  3. María Dolores La Rubia García Director

Defence university: Universidad de Jaén

Year of defence: 2013

Committee:
  1. Fernando Camacho Rubio Chair
  2. Diego Gómez Díaz Secretary
  3. Antonio Soares Vicente Committee member
Department:
  1. INGENIERÍA QUÍMICA,AMBIENTAL Y DE LOS MATERIALES

Type: Thesis

Teseo: 363902 DIALNET lock_openRUJA editor

Abstract

Has been studied pure CO2 absorption by binary mixtures of aqueous alkanolamine solutions (MIPA-TEA, DIPA-TEA), in a stirred tank reactor operates intermittently with respect to the gas and liquid phases, and a bubble column, being variables operation: concentration, varying the proportions of mixed (100/0, 75/25, 50/50, 25/75, 0/100), and the temperature between 288-313 K, except for the column was operated at 298 K. Stirred tank, the results provide insight into the possible presence of thermal effects, the rate of reaction and to propose ways of determining the kinetic rate constant as a function of temperature. In bubble column, the results allow to determine the diameters of the bubbles, retention of CO2 in mixtures, the mass transfer coefficients for liquid phase. Similarly, studies conducted by NMR speciation, have facilitated know the stoichiometry of the reactions between CO2 and alkanolamines.