scholarly journals Chemical Process Absorption Column Design for CO2 Sequestration

2019 ◽  
pp. 1-14
Author(s):  
Ikenna C. Nwokedi ◽  
Philomena K. Igbokwe
Keyword(s):  
Ambient Temperature ◽  
Flue Gas ◽  
Atmospheric Pressure ◽  
Chemical Process ◽  
Co2 Sequestration ◽  
Material Balance ◽  
Equipment Design ◽  
Absorption Column ◽  
Generating Set ◽  
Column Design

The design of a prototype chemical process absorption column was carried out to facilitate the sequestration of CO2 from flue gas emanating from an exhaust point of a power generating set. Factors such as ambient temperature and atmospheric pressure where factored into consideration before the fabrication of the absorption column. The rate of the absorbing liquid is 0.1056kg/min and contains 5% mole/mole carbon (iv) oxide. Also the energy and material balance of the entire sequestration process was verified as well as the equipment design for the process was carried out.

scholarly journals Modeling and Simulation of Gas Liquid Absorption Column for So2 Removal Process

2019 ◽  
Vol 8 (6S2) ◽  
pp. 528-530
Keyword(s):  
Hydrogen Peroxide ◽  
Flue Gas ◽  
Sulphur Dioxide ◽  
Coal Combustion ◽  
Material Balance ◽  
Absorption Column ◽  
So2 Removal ◽  
Adverse Impacts ◽  
Liquid Absorption ◽  
Harmful Effects

During coal combustion, sulphur in the coal is converted into sulphur dioxide (SO2).This sulphur dioxide (SO2) is responsible for the formation of acid rain which is one of the widespread forms of pollution all over the world that causes harmful effects to humans and environment. To minimize the adverse impacts of SO2, it must be removed from flue gas. For reduction of SO2, flue gas desulphurization (FGD) is most commonly used. The mathematical viewer is developed and simulated for a gas liquid absorption column to control the flow rate of H2O2.The model equation is developed by considering material balance around the column. The absorption rate is determined by using different concentration of sulphur dioxide with hydrogen peroxide. Hydrogen peroxide, not only absorbs the SO2 but it also produce useful by-product in the form of sulphuric acid (H2SO4).

Inactivation of Prions Using Electrical DC Discharges at Atmospheric Pressure and Ambient Temperature

2011 ◽  
Vol 8 (4) ◽  
pp. 316-323 ◽  
Author(s):  
Jaroslav Julák ◽  
Olga Janoušková ◽  
Vladimír Scholtz ◽  
Karel Holada
Keyword(s):  
Ambient Temperature ◽  
Atmospheric Pressure

Study on the Gas Distribution Characters of the Outsize CO2 Absorber of the Flue Gas in the Coal-Fired Power Plant

2014 ◽  
Vol 962-965 ◽  
pp. 1476-1479
Author(s):  
Bing Cheng Liu ◽  
Wen Feng Dong ◽  
De Biao Zhou ◽  
Qian Liang ◽  
Qing Ling Li
Keyword(s):  
Flow Field ◽  
Flue Gas ◽  
Annular Flow ◽  
Theoretical Foundation ◽  
Co2 Absorption ◽  
Technological Parameters ◽  
Absorption Column ◽  
Gas Distributor ◽  
Column Wall ◽  
Fluent Software

In the article the flow field in the twin-tangential annular flow gas distributor was simulated based on the standard k-ε turbulent model with FLUENT software according to various distance L between sleeve and column wall and differing numbers of baffles, after comprehensively analyzing, got the best technological parameters with misdistribution factor and pressure drop. Based on the analysis of the flow field discipline of the twin-tangential annular flow gas distributor and the two-line vane gas distributor, and the systematic comparison of the performance of these two kinds of gas distributors in the flue gas CO2 absorption column, the research will provide the important theoretical foundation for the choosing and designing of the distributor of the flue gas CO2 absorber.

scholarly journals Study of the possibility of obtaining nanocrystalline cellulose in a single stage plasma chemical process

2021 ◽  
pp. 17-23
Keyword(s):  
Microcrystalline Cellulose ◽  
Direct Current ◽  
Discharge Current ◽  
Atmospheric Pressure ◽  
Chemical Process ◽  
Discharge Voltage ◽  
Nanocrystalline Cellulose ◽  
Plasma Chemical ◽  
Small Surface ◽  
Direct Current Discharge

The paper considers the possibility of obtaining nanocrystalline cellulose (NCC) by gas-discharge treatment of aqueous suspensions of microcrystalline cellulose or filter paper. For processing, a direct current discharge was used at atmospheric pressure with a wa-ter cathode at a discharge current of 35 mA and a discharge voltage of 1500 V. It was found that the plasma-chemical treatment of cellulose-containing material in water without the use of other reagents leads to the release of NCC with relatively large parti-cle sizes and a small surface charge.

Mineral carbonation of flue gas desulfurization gypsum for CO2 sequestration

Energy ◽  
2012 ◽  
Vol 47 (1) ◽  
pp. 370-377 ◽  
Author(s):  
Myung gyu Lee ◽  
Young Nam Jang ◽  
Kyung won Ryu ◽  
Wonbeak Kim ◽  
Jun-Hwan Bang
Keyword(s):  
Flue Gas ◽  
Co2 Sequestration ◽  
Flue Gas Desulfurization ◽  
Mineral Carbonation
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