Validation of mass transfer and liquid holdup correlations for CO2 absorption process with methyldiethanolamine Solvent and piperazine as an activator

2019 ◽  
Vol 126 ◽  
pp. 214-222 ◽  
Author(s):  
Abbas Hemmati ◽  
Reza Farahzad ◽  
A. Surendar ◽  
Behrad Aminahmadi
Keyword(s):  
Mass Transfer ◽  
Co2 Absorption ◽  
Absorption Process ◽  
Liquid Holdup

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.

Mass-Transfer Characteristics of the CO2 Absorption Process in a Rotating Packed Bed

2016 ◽  
Vol 30 (5) ◽  
pp. 4215-4220 ◽  
Author(s):  
Miaopeng Sheng ◽  
Baochang Sun ◽  
Fuming Zhang ◽  
Guangwen Chu ◽  
Lili Zhang ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Packed Bed ◽  
Co2 Absorption ◽  
Absorption Process ◽  
Transfer Characteristics ◽  
Rotating Packed Bed

Entropy Generation Analysis of a Chemical Absorption Process Where Carbon Dioxide is Absorbed by Falling Monoethanolamine Solution Film

2014 ◽  
Vol 136 (12) ◽  
Author(s):  
Imen Chermiti ◽  
Nejib Hidouri ◽  
Ammar Ben Brahim
Keyword(s):  
Mass Transfer ◽  
Chemical Reaction ◽  
Entropy Generation ◽  
Co2 Absorption ◽  
Falling Film ◽  
Total Entropy ◽  
Absorption Process ◽  
Viscous Effects ◽  
Chemical Absorption ◽  
Falling Liquid Film

The present paper reports a study about entropy generation analysis for the case of chemical absorption of a gas into laminar falling liquid film. The CO2 absorption into monoethanolamine (MEA) aqueous solutions has been considered. Temperature and concentration expressions are determined by using Laplace transform and used for the entropy generation calculation. The effects of irreversibilities due to heat transfer, mass transfer, viscous effects, coupling effects between heat and mass transfer, and chemical reaction on the total entropy generation of the considered system are derived. The obtained results show that entropy generation is mainly due to chemical reaction irreversibility at the gas–liquid interface. Between this interface and the reaction film thickness (where the reaction take place), entropy generation is due to both chemical reaction and mass transfer irreversibilities. More details concerning the contribution of each kind of irreversibility to entropy generation through the falling film are graphically presented and discussed.

Research Trends of Carbon Dioxide Capture using Ionic Liquids and Aqueous Amine-Ionic Liquids Mixtures

2016 ◽  
Vol 13 (1) ◽  
pp. 53
Author(s):  
Siti Nabihah Jamaludin ◽  
Ruzitah Mohd Salleh
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Membrane Separation ◽  
Carbon Dioxide Capture ◽  
Global Climate ◽  
Research Trends ◽  
Co2 Absorption ◽  
Absorption Process ◽  
Chemical Absorption ◽  
Factors Influencing

Anthropogenic CO2 emissions has led to global climate change and widely contributed to global warming since its concentration has been increasing over time. It has attracted vast attention worldwide. Currently, the different CO2 capture technologies available include absorption, solid adsorption and membrane separation. Chemical absorption technology is regarded as the most mature technology and is commercially used in the industry. However, the key challenge is to find the most efficient solvent in capturing CO2. This paper reviews several types of CO2 capture technologies and the various factors influencing the CO2 absorption process, resulting in the development of a novel solvent for CO2 capture.

Sign in / Sign up

Export Citation Format

Share Document