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Reactivity of rice husk-derived lithium silicates followed by in situ Raman spectroscopy
(Elsevier Science Sa, 2019-03)
Lithium silicates were synthesized using rice husk ash as a precursor of silica to be used in CO2 capture. Two different treatment steps, with water (SiO2-W) or HCl 3 M (SiO2-A), were carried out prior to the rice husk ...
Comparative study of lithium-based CO2 sorbents at high temperature: Experimental and modeling kinetic analysis of the carbonation reaction
(Elsevier, 2020-10)
This work focuses on the study of the CO2 capture kinetic properties and reactivity of different alkali-based sorbents. Three samples, K-doped Li2ZrO3, mixed Li2ZrO3-Na2ZrO3, and Li4SiO4, were characterized and evaluated ...
Carbon foams from sucrose employing different metallic nitrates as blowing agents: Application in CO2 capture
(Elsevier Science, 2019-08)
Carbon foams were prepared employing sucrose as the carbon source. The porosity of the materials as well as the morphology was controlled using different metallic nitrates during the synthesis, such as aluminum (obtaining ...
Mathematical Model of Liquid Balance CO2 Vapor in a PZ-MDEA-H Solution 2OModelo Matemático de Equilibrio Líquido Vapor de CO2 en una Solución de PZ-MDEA-H 2O
(Universidad Tecnológica Nacional, 2019)
Time-Resolved synchrotron powder x-ray diffraction studies on the synthesis of L8 Si O6 and its reaction with CO2
(American Chemical Society, 2019-01-08)
Lithium oxosilicate was synthesized via the solid-state method using Li 2 O and SiO 2 as starting reactants. In situ synchrotron powder X-ray diffraction (SPRXD) coupled with Rietveld refinement allowed describing the ...
Efecto de la quema prescripta de un pastizal sobre el balance de CO2
(Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, 2008)
El objetivo fue evaluar el efecto de la quema prescripta de un pastizal con predominio de ramíneas sobre la emisión y captura de CO2. El sitio no recibió quema por 25 años. Los tratamientos fueron: T1 = sin quema; T2 = ...
Communication: Photoinduced carbon dioxide binding with surface-functionalized silicon quantum dots
(American Institute of Physics, 2018-04)
Nowadays, the search for efficient methods able to reduce the high atmospheric carbon dioxide concentration has turned into a very dynamic research area. Several environmental problems have been closely associated with the ...
Dynamics of phase transitions in Na2TiO3 and its possible utilization as a CO2 sorbent: a critical analysis
(Royal Society of Chemistry, 2021-07)
Na-Based materials are emerging as promising high-temperature CO2 sorbents. In this work, we provide a detailed study on the synthesis of Na2TiO3 via a solid-state route using NaOH and TiO2 as starting reactants. The CO2 ...
CO2 capture using monoethanolamine (MEA) aqueous solution: Modeling and optimization of the solvent regeneration and CO2 desorption process
(Pergamon-Elsevier Science Ltd, 2012-07)
This paper deals with the simultaneously optimization of operating conditions (pressures, temperatures and flow-rates) and dimensions (diameter and height) of the amine regeneration unit in the postcombustion CO2 capture ...