scholarly journals Experimental Study of the Influence of Gas Flow Rate on Hydrodynamic Characteristics of Sieve Trays and Their Effect on CO2 Absorption

2021 ◽  
Vol 11 (22) ◽  
pp. 10708
Author(s):  
Adel Almoslh ◽  
Falah Alobaid ◽  
Christian Heinze ◽  
Bernd Epple
Keyword(s):  
Experimental Study ◽  
Pressure Drop ◽  
Flow Rate ◽  
Gas Flow ◽  
Water System ◽  
Volumetric Flow Rate ◽  
Hydrodynamic Characteristics ◽  
Co2 Absorption ◽  
Gas Flow Rate ◽  
Sieve Tray

An experimental study was conducted in the sieve tray column to investigate the influence of gas flow rate on the hydrodynamic characteristics of the sieve tray, such as total tray pressure drop, wet tray pressure drop, dry tray pressure drop, clear liquid height, liquid holdup, and froth height. The hydrodynamic characteristics of the sieve tray were investigated for the gas/water system at different gas flow rates from 12 to 24 Nm3/h and at different pressures of 0.22, 0.24, and 0.26 MPa. In this study, a simulated waste gas was used that consisted of 30% CO2 and 70% air. The inlet volumetric flow rate of the water was 0.148 m3/h. The temperature of the inlet water was 19.5 °C. The results showed that the gas flow rate has a significant effect on the hydrodynamic characteristics of the tray. The authors investigated the effect of changing these hydrodynamic characteristics on the performance of a tray column used for CO2 capture.

scholarly journals Influence of Pressure on Gas/Liquid Interfacial Area in a Tray Column

2020 ◽  
Vol 10 (13) ◽  
pp. 4617
Author(s):  
Adel Almoslh ◽  
Falah Alobaid ◽  
Christian Heinze ◽  
Bernd Epple
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Volumetric Flow Rate ◽  
Interfacial Area ◽  
Gas Flow Rate ◽  
Test Rig ◽  
Flow Rates ◽  
Waste Gas ◽  
Simulated Waste ◽  
Series Of Experiments

The influence of pressure on the gas/liquid interfacial area is investigated in the pressure range of 0.2–0.3 MPa by using a tray column test rig. A simulated waste gas, which consisted of 30% CO2 and 70% air, was used in this study. Distilled water was employed as an absorbent. The temperature of the inlet water was 19 °C. The inlet volumetric flow rate of water was 0.17 m3/h. Two series of experiments were performed; the first series was performed at inlet gas flow rate 15 Nm3/h, whereas the second series was at 20 Nm3/h of inlet gas flow rate. The results showed that the gas/liquid interfacial area decreases when the total pressure is increased. The effect of pressure on the gas/liquid interfacial area at high inlet volumetric gas flow rates is more significant than at low inlet volumetric gas flow rates. The authors studied the effect of decreasing the interfacial area on the performance of a tray column for CO2 capture.

Measurement of Gas Flow Rate by the Method of Timing a Pressure Drop

1968 ◽  
Vol 39 (4) ◽  
pp. 608-609 ◽  
Author(s):  
W. Brennen ◽  
Robert L. Brown
Keyword(s):  
Pressure Drop ◽  
Flow Rate ◽  
Gas Flow ◽  
Gas Flow Rate

Experimental Characterization of Aerosol Production, Transport, Vaporization, and Atomization Systems. Part I: Factors Controlling Aspiration Rates

1985 ◽  
Vol 39 (6) ◽  
pp. 916-920 ◽  
Author(s):  
R. K. Skogerboe ◽  
S. J. Freeland
Keyword(s):  
Pressure Drop ◽  
Flow Rate ◽  
Gas Flow ◽  
Present Knowledge ◽  
Experimental Characterization ◽  
Gas Flow Rate ◽  
Factors Affecting ◽  
Simple Linear Equation ◽  
The Relationship

This paper describes the results of the first stage of an investigation designed to extend present knowledge of the factors affecting aerosol production, transport, vaporization, and atomization in analytical spectroscopy systems. It focuses on factors controlling aspiration of aqueous solutions. The results demonstrate that the effect of gas flow on the pressure drop induced at the tip of the solution draw tube can be described by a simple linear equation; that the relationship between gas flow rate and solution nebulization rate can also be modelled by a simple equation; and that these relationships are not adequately represented by the Hagen-Poiseulle equation, as is often claimed.

scholarly journals Experimental Study on Simultaneous Desulfurization and Denitrification by DBD Combined with Wet Scrubbing

2021 ◽  
Vol 11 (18) ◽  
pp. 8592
Author(s):  
Liang Yang ◽  
Yunkai Cai ◽  
Lin Lu
Keyword(s):  
Experimental Study ◽  
Flow Rate ◽  
Flue Gas ◽  
Mass Fraction ◽  
Gas Flow ◽  
Gas Flow Rate ◽  
Spray Density ◽  
Wet Scrubbing ◽  
Naoh Solution ◽  
Dbd Reactor

A dielectric barrier discharge (DBD) reactor combined with a wet scrubbing tower was used to carry out an experimental study on desulfurization and denitrification. The effects of the packing type, packing height, spray density, mass fraction of the NaOH solution, discharge power in the DBD reactor, and simulated flue gas flow rate on the desulfurization and denitrification efficiency were analyzed, along with the influence weight of each factor, using orthogonal testing. The experimental results showed that SO2 was easily absorbed by the scrubbing solution, while the desulfurization efficiency remained at a high level (97–100%) during the experiment. The denitration efficiency was between 12 and 96% under various operating conditions. Denitration is the key problem in this system. The influence weights of the DBD power, simulated flue gas flow rate, mass fraction of the NaOH solution, spray density, packing type, and packing height on the denitration efficiency were 56.96%, 18.02%, 11.52%, 5.02%, 4.33%, and 4.16%, respectively. This paper can provide guidance to optimize the desulfurization and denitrification efficiency of this DBD reactor combined with a wet scrubbing system.

scholarly journals CO2 Capture in A Bubble-Column Scrubber Using MEA/CaCl2/H2O Solution—Absorption and Precipitation

Crystals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 694
Author(s):  
Pao Chi Chen ◽  
Shiun Huang Zhuo
Keyword(s):  
Flow Rate ◽  
Gas Flow ◽  
Liquid Flow Rate ◽  
Ph Value ◽  
Bubble Column ◽  
Operating Conditions ◽  
Co2 Absorption ◽  
Gas Flow Rate ◽  
Gas Concentration ◽  
Ph Values

This study used the solvent monoethylamine (MEA)/CaCl2/H2O to investigate CO2 absorption and CaCO3 crystallization in a bubble column scrubber. The variables explored were pH, gas flow rate, gas concentration, the liquid flow rate of the solution to absorb CO2, and CaCO3 crystallization. Under a continuous mode, the solution of CaCl2 was fed continuously, and the pH dropped after CO2 absorption. To maintain the set pH value, there was an automatic input of the MEA solvent into the bubble column. In addition to maintaining the pH, the solution could also absorb CO2 and produce CaCO3 crystals, which served two purposes. The results showed that there were mainly vaterite crystals. At different pH values, the lower the pH, the higher the precipitation rate of vaterite (Fp), and vice versa. However, under different gas flow rates, the Fp decreased as the pH value increased. Additionally, the process variables also affected the absorption rate (RA) and the overall mass-transfer coefficient (KGa) generally increased with increasing pH, gas concentration, and gas flow rate. However, it slowed down under operating conditions at high pH and high gas flow rate. Finally, correlation equations for RA, KGa, and Fp were also obtained and discussed in the study.

Experimental Study of Nozzle Characteristics by Drainage Method

2014 ◽  
Vol 644-650 ◽  
pp. 1422-1425
Author(s):  
Da Wei Qu ◽  
Zhan Cai Sa ◽  
Lu Yan Fan ◽  
Jun Yan Ma
Keyword(s):  
Experimental Study ◽  
Flow Rate ◽  
Duty Cycle ◽  
Gas Flow ◽  
Gas Pressure ◽  
Gas Flow Rate ◽  
Injection Frequency ◽  
Pressure Transmitter ◽  
Nozzle Opening

The characteristic of nozzle jeting is affected by injection frequency, gas pressure in the piping and duty cycle of the control signal.The experimental study is in order to determine nozzle’s opening frequency, duty cycle and pipe pressure affect to the gas flow rate using a drainage method, nozzle opening frequency and duty cycle are controled by mototron platform and ATI Vision calibration software,while using pressure transmitter to measure the change of pipe pressure relationship with duty cycle and frequency.

scholarly journals Experimental Study of Buffer Gas Flow Rate Effect on Output Power of a Copper Vapor Laser

2016 ◽  
Vol 06 (02) ◽  
pp. 24-28 ◽  
Author(s):  
Saeid Behrouzinia ◽  
Kamran Khorasani ◽  
Saeid Marjani ◽  
Masoud Sabaghi ◽  
Mohammad Ebrahim Aeinehvand ◽  
...  
Keyword(s):  
Experimental Study ◽  
Output Power ◽  
Flow Rate ◽  
Gas Flow ◽  
Rate Effect ◽  
Copper Vapor Laser ◽  
Buffer Gas ◽  
Gas Flow Rate ◽  
Vapor Laser ◽  
Flow Rate Effect
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