Experimental and Numerical Mass Transfer Study of Carbon Dioxide Absorption Using Al2O3/Water Nanofluid in Wetted Wall Column

Energy ◽  
2021 ◽  
pp. 121670
Author(s):  
Hamed Rashidi ◽  
Sajad Mamivand
Keyword(s):  
Carbon Dioxide ◽  
Mass Transfer ◽  
Carbon Dioxide Absorption ◽  
Wetted Wall Column ◽  
Transfer Study

Enhanced Mass Transfer Rates in Nanofluids: Experiments and Modeling

2015 ◽  
Vol 137 (9) ◽  
Author(s):  
Ratnesh U. Khanolkar ◽  
A. K. Suresh
Keyword(s):  
Carbon Dioxide ◽  
Mass Transfer ◽  
Particle Size ◽  
Capillary Tube ◽  
Carbon Dioxide Absorption ◽  
Transfer Coefficients ◽  
Material Density ◽  
Transfer Rates ◽  
Low Volume ◽  
Wetted Wall Column

Enhancement in carbon dioxide absorption in water has been studied using SiO2 and TiO2 nanoparticles using the capillary tube apparatus for which previous results on Fe3O4 nanoparticles were reported earlier. Enhancements of up to 165% in the mass transfer coefficients were observed at fairly low volume fractions of the particles. A model which accounts for the effect of particles in terms of a superimposed convection has been proposed to explain the observed effects of particle size, hold-up, and material density. The model provides a good fit to the data from wetted wall column and capillary tube experiment for Fe3O4 from the previous literature, as well as for the data from this work.

Carbon Dioxide Absorption in Triethanolamine Aqueous Solutions: Hydrodynamics and Mass Transfer

2014 ◽  
Vol 37 (3) ◽  
pp. 419-426 ◽  
Author(s):  
Ana B. López ◽  
M. Dolores La Rubia ◽  
José M. Navaza ◽  
Rafael Pacheco ◽  
Diego Gómez-Díaz
Keyword(s):  
Carbon Dioxide ◽  
Mass Transfer ◽  
Aqueous Solutions ◽  
Carbon Dioxide Absorption

scholarly journals Amine-based carbon dioxide absorption: evaluation of kinetic and mass transfer parameters

2018 ◽  
Vol 12 (4) ◽  
pp. 4088-4097
Author(s):  
S. Ma’mun ◽  
Hallvard F. Svendsen ◽  
I. M. Bendiyasa
Keyword(s):  
Carbon Dioxide ◽  
Mass Transfer ◽  
Atmospheric Pressure ◽  
Co2 Concentration ◽  
Co2 Absorption ◽  
Absorption Process ◽  
Carbon Dioxide Absorption ◽  
Global Emission ◽  
Transfer Parameters ◽  
Carbon Dioxide Co2

Global emission of carbon dioxide (CO2), a major contributor to the climate change, has increased annually and it reached over 37 Gt in 2017. An effort to reduce the emission, therefore, needs to be conducted, e.g. post-combustion capture by use of amine-based absorption. The objective of this study is to evaluate the kinetic and mass transfer parameters in a CO2 absorption process using monoethanolamine (MEA), 2-(methylamino)ethanol (MMEA), and 2-(ethylamino)ethanol (EMEA) as absorbents. The experiments were conducted in a bubble reactor at atmospheric pressure and 40 °C with 10-vol% CO2 flowrate of 5 NL/men. The CO2 concentration leaving the reactor was measured by an IR CO2 analyzer. The results obtained from this experiment were the overall absorption rates consisting of both chemical reaction and mass transfer. Analysis result shows that the reaction between CO2 and amines takes place fast, therefore the mass transfer of CO2 from the gas into the liquid through the gas film would control the overall absorption rate.

Sign in / Sign up

Export Citation Format

Share Document