CO₂ Capture With Absorbents of Tertiary Amine Functionalized Nano-SiO₂.

ABSTRACT: To improve CO₂ adsorption performance of nanoparticle absorbents, a novel tertiary amine functionalized nano-SiO₂ (NS-NR₂) was synthesized based on the 3-aminopropyltrimethoxysilane (KH540) modified nano-SiO₂ (NS-NH₂) via methylation. The chemical structure and performances of the NS-NR₂ were characterized through a series of experiments, which revealed that NS-NR₂ can react with CO₂ in water and nanofluid with low viscosity revealed better CO₂ capture. The CO₂ capture mechanism of NS-NR₂ was studied by kinetic models. From the correlation coefficient, the pseudo second order model was found to fit well with the experiment data. The influencing factors were investigated,

SUBMITTER: Lai N 

PROVIDER: S-EPMC7059254 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature