KINETIC ANALYSIS OF METHANE HYDRATE FORMATION WITH BUTTERFLY TURBINE IMPELLERS
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Date
2022
Authors
Longinos, Sotirios Nik.
Longinou, Dionisia Dimitra
Myrzakhmetova, Nurbala
Akimbayeva, Nazgul
Zhursumbaeva, Mariamkul
Abdiyev, Kaldibek
Toktarbay, Zhexenbek
Parlaktuna, Mahmut
Journal Title
Journal ISSN
Volume Title
Publisher
Molecules
Abstract
Heat generation during gas hydrate formation is an important problem because it reduces
the amount of water and gas that become gas hydrates. In this research work, we present a new
design of an impeller to be used for hydrate formation and to overcome this concern by following the
hydrodynamic literature. CH4 hydrate formation experiments were performed in a 5.7 L continuously
stirred tank reactor using a butterfly turbine (BT) impeller with no baffle (NB), full baffle (FB), half
baffle (HB), and surface baffle (SB) under mixed flow conditions. Four experiments were conducted
separately using single and dual impellers. In addition to the estimated induction time, the rate of
hydrate formation, hydrate productivity and hydrate formation rate, constant for a maximum of 3 h,
were calculated. The induction time was less for both single and dual-impeller experiments that used
full baffle for less than 3 min and more than 1 h for all other experiments. In an experiment with
a single impeller, a surface baffle yielded higher hydrate growth with a value of 42 108 mol/s,
while in an experiment with dual impellers, a half baffle generated higher hydrate growth with
a value of 28.8 108 mol/s. Both single and dual impellers achieved the highest values for the
hydrate formation rates that were constant in the full-baffle experiments.
Description
Keywords
Type of access: Open Access, gas hydrates, hydrate formation, butterfly turbine, induction time
Citation
Longinos, S. N., Longinou, D. D., Myrzakhmetova, N., Akimbayeva, N. O., Zhursumbaeva, M., Abdiyev, K. Z., Toktarbay, Z., & Parlaktuna, M. (2022). Kinetic Analysis of Methane Hydrate Formation with Butterfly Turbine Impellers. Molecules, 27(14), 4388. https://doi.org/10.3390/molecules27144388