Mass-Transfer Characteristics for Gas−Liquid Reaction of H2S and Sulfuric Acid in a Packed Column

2004 ◽  
Vol 43 (18) ◽  
pp. 5846-5853 ◽  
Author(s):  
Hui Wang ◽  
Ivo G. Dalla Lana ◽  
Karl T. Chuang
Keyword(s):  
Mass Transfer ◽  
Sulfuric Acid ◽  
Packed Column ◽  
Transfer Characteristics ◽  
Liquid Reaction

Mass transfer characteristics and energy penalty analysis of MEA regeneration process in packed column

2021 ◽  
Author(s):  
Fengming Chu ◽  
Guozhen Xiao ◽  
Guoan Yang
Keyword(s):  
Mass Transfer ◽  
Energy Consumption ◽  
Packed Column ◽  
High Energy ◽  
Regeneration Process ◽  
Transfer Characteristics ◽  
Energy Penalty ◽  
High Energy Consumption ◽  
Penalty Analysis

The high energy consumption of the MEA regeneration process is the biggest challenge for the application of CO2 capture by the monoethanolamine (MEA) solution.

STUDY OF THERMAL AND MASS TRANSFER CHARACTERISTICS ON AIR GAP DIFFUSED DESALINATION

2020 ◽  
Author(s):  
Ping Wang ◽  
Bingchen Yu ◽  
Lele Chen ◽  
Shiming Xu ◽  
Lin Xu ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Air Gap ◽  
Transfer Characteristics

Henry's constants and mass transfer coefficients of halogenated organic pollutants in an air stripping packed column

1998 ◽  
Vol 38 (6) ◽  
pp. 287-294 ◽  
Author(s):  
Pen-C. Chiang ◽  
Chung-H. Hung ◽  
J. C. Mar ◽  
E. E. Chang
Keyword(s):  
Mass Transfer ◽  
Methylene Chloride ◽  
Packed Column ◽  
Transfer Coefficients ◽  
Chlorinated Organic Compounds ◽  
Air Stripping ◽  
Mass Transfer Coefficients ◽  
Equilibrium Partition ◽  
Henry's Constants ◽  
Chlorinated Organic

Both Henry's constants and volumetric mass transfer coefficients (KLa) of eight priority chlorinated organic compounds including 1,1-dichloroethene, methylene chloride, chloroform, carbon tetrachloride, 1,1,1-trichloroethane, trichloroethylene, tetrachloroethylene, and 1,4-dichlorobenzene in an air stripping packed column were investigated in this study. The liquid and gas phase EPICS (Equilibrium Partition in Closed System) and direct calculating methods were applied to determine the Henry's constants of VOCs. The interference of co-solute on Henry's constants was also investigated. Experimental results indicated that decrease in Henry's constants of VOCs was observed in the presence of humic acid but no apparent effect on Henry's constants was detected when there was NaCl and surfactant in solution. Four different configurations of packing media including Intalox Saddle, Super Intalox Saddle, Telleret, and Hedgehog made of polypropylene were respectively packed in the air stripping tower and investigated in the study. The dependence of hydraulic loading, air-water ratio, and configurations of packing media on mass transfer coefficients of VOCs was discussed.

A Method for Estimating Mass Transfer Coefficients in a Packed Column Using Reactive Absorption Data

2005 ◽  
Vol 70 (3) ◽  
pp. 383-402
Author(s):  
Valery A. Danilov ◽  
Il Moon
Keyword(s):  
Experimental Data ◽  
Mass Transfer ◽  
Optimization Technique ◽  
Packed Column ◽  
Effective Area ◽  
Transfer Coefficients ◽  
Mass Transfer Coefficients ◽  
Model Calculations ◽  
Unit Model ◽  
Reactive Absorption

This paper is devoted to the development of a new method for estimating mass transfer coefficients and effective area in packed columns in the case of reactive absorption. The method is based on a plug-flow model of reactive absorption of carbon dioxide with sodium hydroxide solution. The parameter estimation problem is solved using an optimization technique. Some mass transfer parameters are found to be correlated. Global sensitivity analysis by Sobol's technique showed that the unit model with the defined objective function is sensitive to the estimated parameter. Case studies of reactive absorption with different packings illustrate application of the proposed method for estimating mass transfer coefficients and effective area from column operation data. The model calculations are compared with experimental data obtained by other authors. The concentration profiles calculated by the unit model with the estimated parameters are shown to match well with experimental profiles from literature. A good agreement between estimated values and experimental data from literature confirms the applicability of this method.

Effect of gas distributor on gas–liquid dispersion and mass transfer characteristics in stirred tank

2019 ◽  
Vol 145 ◽  
pp. 314-322 ◽  
Author(s):  
Baoqing Liu ◽  
Qing Xiao ◽  
Ning Sun ◽  
Pengfei Gao ◽  
Fangyi Fan ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Stirred Tank ◽  
Transfer Characteristics ◽  
Gas Distributor ◽  
Liquid Dispersion
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