Research on Status and Outlook of Using Different Solvents for CO2 Capture in a Rotating Packed Bed

This study investigates the removal efficiency of carbon dioxide by aqueous absorbents containing monoethanolamine (MEA), piperazine(PZ), diethylenetriamine(DETA) and ionic liquids in a rotating packed bed. The performance of an absorbent was assessed in terms of an overall volumetric mass transfer coefficient and regeneration heat duty. The CO2 removal efficiency in a rotating packed bed was observed to be more suitable than that in a packed column, suggesting a potential of a rotating packed bed can replace a traditional packed column to the usage of reduction of the greenhouse gas CO2 from the exhausted gas. The mixture containing PZ and DETA exhibited a high CO2 removal efficiency among these absorbents. Besides, DETA has a lower regeneration heat duty than MEA, which means the finest mixture for industrial CO2 capture system will be the combination of PZ, DETA, and ionic liquids, instead of traditional alkanolamines, MEA.

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1010-1012.913 ◽

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 ◽

Gas Phase ◽

Packed Bed ◽

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.

Dynamic Measurement of Carbon Dioxide Volumetric Mass Transfer Coefficient in a Well-Mixed Reactor Using a pH Probe: Analysis of the Salt and Supersaturation Effects

Industrial & Engineering Chemistry Research ◽

10.1021/ie0711776 ◽

2008 ◽

Vol 47 (4) ◽

pp. 1310-1317 ◽

Cited By ~ 18

Author(s):

M. Kordač ◽

V. Linek

Keyword(s):

Carbon Dioxide ◽

Mass Transfer ◽

Transfer Coefficient ◽

Dynamic Measurement ◽

Ph Probe ◽

Probe Analysis ◽

Mixed Reactor

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.908.277 ◽

2014 ◽

Vol 908 ◽

pp. 277-281

Author(s):

Fei Wu ◽

Jie Wu ◽

Mei Jin ◽

Fang Wang ◽

Ping Lu

Keyword(s):

Mass Transfer ◽

Transfer Coefficient ◽

Flow Rate ◽

Rotor Blade ◽

Gas Flow ◽

Packed Bed ◽

Contact Length ◽

Liquid Distribution ◽

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.

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

Industrial & Engineering Chemistry Research ◽

10.1021/ie202983x ◽

2012 ◽

Vol 51 (33) ◽

pp. 10949-10954 ◽

Cited By ~ 10

Author(s):

Baochang Sun ◽

Haikui Zou ◽

Guangwen Chu ◽

Lei Shao ◽

Zequan Zeng ◽

...

Keyword(s):

Mass Transfer ◽

Transfer Coefficient ◽

Packed Bed ◽

Co2 Absorption ◽

Materials Balance ◽

A MODEL FOR THE MASS TRANSFER COEFFICIENT IN ROTATING PACKED BED

Chemical Engineering Communications ◽

10.1080/00986440008912185 ◽

2000 ◽

Vol 178 (1) ◽

pp. 249-256 ◽

Cited By ~ 5

Author(s):

DING XINLIN ◽

HU XIAOYONG ◽

DING YIGANG ◽

WU YUANXIN ◽

LI DINGHUO

Keyword(s):

Mass Transfer ◽

Transfer Coefficient ◽

Packed Bed ◽

Modelling and Design of Carbon Dioxide Absorption in Rotating Packed Bed and Packed Column

IFAC-PapersOnLine ◽

10.1016/j.ifacol.2016.07.303 ◽

2016 ◽

Vol 49 (7) ◽

pp. 895-900 ◽

Cited By ~ 10

Author(s):

Matt Thiels ◽

David S.H. Wong ◽

Cheng-Hsiu Yu ◽

Jia-Lin Kang ◽

Shi Shang Jang ◽

...

Keyword(s):

Carbon Dioxide ◽

Packed Column ◽

Packed Bed ◽

Carbon Dioxide Absorption ◽

Mass and Heat Transfer in Multi-Pulverizing RPB

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.396-398.311 ◽

2011 ◽

Vol 396-398 ◽

pp. 311-314

Author(s):

Hai Hui Chen ◽

Xu Guang Min

Keyword(s):

Heat Transfer ◽

Mass Transfer ◽

Transfer Coefficient ◽

Packed Bed ◽

Experimental Models ◽

Transfer Model ◽

Axial Fan ◽

Transfer Property ◽

Rotating Packed Bed ◽

Mass And Heat Transfer

New typical cross-flow Rotating Packed Bed (RPB) called multi-pulverizing RPB was manufactured. Mass and heat transfer property of the new type PRB were studied by two experimental models. In the mass transfer model, the axial fan pumping gas press is only 100 Pa, mass transfer coefficient is similar to countercurrent RPB. In the heat transfer experiment, the axial fan pumping gas press is only 120 Pa; volumetric heat transfer coefficient is from 75 kW.m-3. K-1 to 100 kW.m-3. K-1.

Mass Transfer Study for Bio-Synergy in Dairy Wastewater Treatment Plant

Journal of Engineering ◽

10.31026/j.eng.2018.09.04 ◽

2018 ◽

Vol 24 (9) ◽

pp. 51

Author(s):

Basma Abbas Abdulmajeed ◽

Arwa Raad Ibrahim

Keyword(s):

Carbon Dioxide ◽

Mass Transfer ◽

Transfer Coefficient ◽

Culture Media ◽

Bubble Column ◽

Thermal Control ◽

Dairy Wastewater ◽

Bubble Column Bioreactor

The present study addresses the behavior of gases in cultivation media as an essential factor to develop the relationship between the microorganisms that are present in the same environment. This relationship was explained via mass transfer of those gases to be a reasonable driving force in changing biological trends. Stripping and dissolution of oxygen and carbon dioxide in water and dairy wastewater were investigated in this study. Bubble column bioreactor under thermal control system was constructed and used for these processes. The experimental results showed that the removal of gases from the culture media requires more time than the dissolution. For example, the volumetric mass transfer coefficient for the removal of oxygen is 1.67 min-1 while the volumetric mass transfer coefficient for dissolution the same gas is 3.18 min-1. The same thing occurred with carbon dioxide, where the data showed that the volumetric mass transfer coefficient of the dissolution of CO2 is 0.66 min-1 while the volumetric mass transfer coefficient for removal process is 0.374 min-1. However, the two processes (dissolution and removal) with CO2 take more time than that with O2. Therefore, the production of gases due to metabolic processes in bacteria or microalgae remains in culture’s media for a certain period even if that media is sparged by air. Thus, this will give enough time for both microorganisms to consume those gases. Keywords: Bioreactor, mass transfer, microalgae, aerobic bacteria The present study addresses the behavior of gases in cultivation media as an essential factor to develop the relationship between the microorganisms that are present in the same environment. This relationship was explained via mass transfer of those gases to be a reasonable driving force in changing biological trends. Stripping and dissolution of oxygen and carbon dioxide in water and dairy wastewater were investigated in this study. Bubble column bioreactor under thermal control system was constructed and used for these processes. The experimental results showed that the removal of gases from the culture media requires more time than the dissolution. For example, the volumetric mass transfer coefficient for the removal of oxygen is 1.67 min-1 while the volumetric mass transfer coefficient for dissolution the same gas is 3.18 min-1. The same thing occurred with carbon dioxide, where the data showed that the volumetric mass transfer coefficient of the dissolution of CO2 is 0.66 min-1 while the volumetric mass transfer coefficient for removal process is 0.374 min-1. However, the two processes (dissolution and removal) with CO2 take more time than that with O2. Therefore, the production of gases due to metabolic processes in bacteria or microalgae remains in culture’s media for a certain period even if that media is sparged by air. Thus, this will give enough time for both microorganisms to consume those gases.