Kinetic analysis of CO2 hydrate formation by the use of different impellers

Longinos, Sotirios Nik
Parlaktuna, Mahmut
This study investigates the effects of types of impellers with the use of full baffle in carbon dioxide gas hydrate formation. In single impeller experiments initial hydrate formation rate is higher with the use of rushton turbine showing the better interaction between gas and liquid in radial flow due to better pumping capacity and good shear field among pitched blade turbine, triangle turbine and marine propeller, with value 298 x 10(-8) mol/s. In dual impeller experiments mixed flow experiments and more specifically triangle turbine show higher values in rate of hydrate formation with maximum value 370 x 10(-8) mol/s. In both single and dual impeller experiments, RT experiments formed gas hydrates for fewer periods than any other impeller type due to high amount of generated heat. Furthermore, in both single and dual impeller experiments the PBTD experiment consumes more energy compared to any other of the five experiments.


Kinetic analysis of dual impellers on methane hydrate formation
Longinos, Sotirios Nik; Parlaktuna, Mahmut (2021-02-01)
This study investigates the effects of types of impellers and baffles onmethane hydrate formation. Induction time, water conversion to hydrates (hydrate yield), hydrate formation rate and hydrate productivity are components that were estimated. The initial hydrate formation rate is generally higher with the use of Ruston turbine (RT) with higher values 28.93x10(-8)mol/s inRT/RT with full baffle (FB) experiment, but the decline rate of hydrate formation was also high compared to up-pumping pitched blade turb...
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Bulbul, S.; Kadoura, A. S.; Merey, S.; Parlaktuna, Mahmut (2014-01-01)
This study is aimed at investigating the effects of a poly 2-ethyl-2-oxazoline-type polymer on the prevention of methane hydrate formation. During the study, seven experiments with low concentrations of poly 2-ethyl-2-oxazoline (0 to 1 wt%) were run in a batch-type reactor. The analysis of the experimental study indicates that poly 2-ethyl-2-oxazoline can be considered as a potential kinetic inhibitor for hydrate formation.
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Kök, Mustafa Verşan (2015-11-01)
In this study, combustion and pyrolysis behaviours of methanol route biodiesel were investigated using thermal analysis techniques known as simultaneous thermogravimetry and differential scanning calorimetry (DSC) at different heating rates. Reaction regions, peak temperatures, mass loss and heat flow rates of the biodiesel sample are determined using TG-DTG and DSC data. It was found that as the heating rate of the reactions increased, peak temperatures of the reactions shifted higher temperatures, implyin...
Kinetic study of the effect of amino acids on methane (95%)—propane (5%) hydrate formation
Longinos, Sotirios Nik.; Parlaktuna, Mahmut (2021-01-01)
© 2021, Akadémiai Kiadó, Budapest, Hungary.The motivation for this study is the potential of environmental friendly amino acids such as alanine, histidine, phenylalanine and valine to be examined as inhibitors on methane (95%)—propane (5%) hydrate formation together with the hydrodynamic examination of three different flows in hydrate formation process. The outcomes indicated that valine and alanine behave as promoters while histidine and phenylalanine behave as inhibitors. From hydrodynamic perception radi...
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Bülbül, Sevtaç; Mehmetoğlu, Mustafa Tanju; Department of Petroleum and Natural Gas Engineering (2007)
The objective of this study is to determine hydrate formation conditions of methane- hydrogen sulfide mixtures. During the study, an experimental work is carried out by using a system that contains a high-pressure hydrate formation cell and pressure-temperature data is recorded in each experiment. Different H2S concentrations and both brine and distilled water are used in the experiments and the Black Sea conditions, which are suitable for methane-hydrogen sulfide hydrate formation are examined. Considering...
Citation Formats
S. N. Longinos and M. Parlaktuna, “Kinetic analysis of CO2 hydrate formation by the use of different impellers,” REACTION KINETICS MECHANISMS AND CATALYSIS, pp. 0–0, 2021, Accessed: 00, 2021. [Online]. Available: