Determination of Mass-Transfer Coefficient of CO2 in NH3 and CO2 Absorption by Materials Balance in a Rotating Packed Bed

2012 ◽  
Vol 51 (33) ◽  
pp. 10949-10954 ◽  
Author(s):  
Baochang Sun ◽  
Haikui Zou ◽  
Guangwen Chu ◽  
Lei Shao ◽  
Zequan Zeng ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Packed Bed ◽  
Co2 Absorption ◽  
Materials Balance ◽  
Rotating Packed Bed

Influence of Gas-Liquid Distribution Inducer on Mass Transfer Coefficient in Rotating Packed Bed

2014 ◽  
Vol 908 ◽  
pp. 277-281
Author(s):  
Fei Wu ◽  
Jie Wu ◽  
Mei Jin ◽  
Fang Wang ◽  
Ping Lu
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Flow Rate ◽  
Rotor Blade ◽  
Gas Flow ◽  
Packed Bed ◽  
Contact Length ◽  
Liquid Distribution ◽  
Rotating Packed Bed

Based on acetone-H2O system, the influence of the gas-liquid distribution inducer on the mass transfer coefficient in the rotating packed bed with the stainless steel packing was investigated. Furthermore, the absorption performance was also obtained under the experimental condition of the rotational speed of 630 rpm, the gas flow rate of 2 m3/h and the liquid flow rate of 100 L/h in the rotating packed bed with different types and different installation ways of the distribution inducer. The experimental results showed that the volumetric mass transfer coefficient Kyα per unit contact length of gas-liquid was increased by 8.6% for the forward-curved fixed blade, by 19.8% for the backward-curved rotor blade and by 33.2% with the combination of the straight radial rotor blade and the backward-curved fixed blade, respectively. Furthermore, when the gas flow rate was 2.5 m3/h, Kyα per unit contact length of gas-liquid was increased by 2.9% for the forward-curved fixed blade, by 25.3% for the backward-curved rotor blade, by 42.7% for the combination of the straight radial rotor blade and the backward-curved fixed blade, respectively. The results indicated that the distribution inducer play an important role on the improvement of the mass transfer coefficient in acetone-H2O system.

A MODEL FOR THE MASS TRANSFER COEFFICIENT IN ROTATING PACKED BED

2000 ◽  
Vol 178 (1) ◽  
pp. 249-256 ◽  
Author(s):  
DING XINLIN ◽  
HU XIAOYONG ◽  
DING YIGANG ◽  
WU YUANXIN ◽  
LI DINGHUO
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Packed Bed ◽  
Rotating Packed Bed

Absorption Performance of Rotating Packed Bed with Gas-Liquid Distribution Inducer

2014 ◽  
Vol 1010-1012 ◽  
pp. 913-916
Author(s):  
Mei Jin ◽  
Li Zhan ◽  
Li Yan Zhou ◽  
Guo Xian Yu ◽  
Ping Lu
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Gas Phase ◽  
Packed Bed ◽  
Volumetric Mass Transfer Coefficient ◽  
Liquid Distribution ◽  
Rotating Packed Bed ◽  
Different Types ◽  
Absorption Performance

Based on CO2-NaOH system, the absorption performances and the mass transfer of the rotating packed bed with the three different types of the gas-liquid distribution inducer were investigated. The experimental results showed that the structure of the gas-liquid distribution inducer have an important effect on the volumetric mass transfer coefficient and the absorptivity of CO2. Due to the enhancement of the countercurrent contact between the liquid phase and the gas phase from the installation of the distribution inducer, an increasement of the volumetric mass transfer coefficient and a higher absorptivity of CO2 could be obtained than those of the experiment in PRB without any inducers. Among the distribution inducers, the combination of the liquid distribution inducer of Type-B and the gas distribution inducer of Type-A could give a better volumetric mass transfer coefficient and a higher absorptivity of CO2, which were 27.84×10-3 s-1 and 80.00%, respectively.

Determination of Quantitative Sodium Mass Transfer Coefficient During Osmotic Processing of Potatoes

2015 ◽  
Vol 40 (5) ◽  
pp. 963-968 ◽  
Author(s):  
Troy Hinkley ◽  
Janam Pandya ◽  
Amanda J. Kinchla ◽  
Eric A. Decker
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient

Mass Transfer Enhancement for CO2 Absorption in Structured Packed Absorption Column

2019 ◽  
Vol 41 (5) ◽  
pp. 820-820
Author(s):  
Pongayi Ponnusamy Selvi and Rajoo Baskar Pongayi Ponnusamy Selvi and Rajoo Baskar
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Gas Flow ◽  
Aqueous Ammonia ◽  
Volume Flow Rate ◽  
Packed Column ◽  
Operating Conditions ◽  
Co2 Absorption ◽  
Absorption Column

The acidic gas, Carbon dioxide (CO2) absorption in aqueous ammonia solvent was carried as an example for industrial gaseous treatment. The packed column was provided with a novel structured BX-DX packing material. The overall mass transfer coefficient was calculated from the absorption efficiency of the various runs. Due to the high solubility of CO2, mass transfer was shown to be mainly controlled by gas side transfer rates. The effects of different operating parameters on KGav including CO2 partial pressure, total gas flow rates, volume flow rate of aqueous ammonia solution, aqueous ammonia concentration, and reaction temperature were investigated. For a particular system and operating conditions structured packing provides higher mass transfer coefficient than that of commercial random packing.

Sign in / Sign up

Export Citation Format

Share Document