Kinetics of Methane + Hydrogen Sulfide Clathrate Hydrate Formation in the Presence / Absence of Poly N-Vinyl Pyrrolidone (PVP) and L-Tyrosine: Experimental Study and Modeling of the Induction Time

2021 ◽  
pp. 117384
Author(s):  
Mahnaz Aghajanloo ◽  
Mohammad Reza Ehsani ◽  
Zahra Taheri ◽  
Taraneh Jafari Behbahani ◽  
Amir H. Mohammadi ◽  
...  
Keyword(s):  
Experimental Study ◽  
Hydrogen Sulfide ◽  
Induction Time ◽  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Vinyl Pyrrolidone ◽  
Kinetics Of

Experimental study of hydrogen sulfide hydrate formation: Induction time in the presence and absence of kinetic inhibitor

2013 ◽  
Vol 22 (1) ◽  
pp. 114-118 ◽  
Author(s):  
Yousef Salamat ◽  
Abdolreza Moghadassi ◽  
Mohammad Illbeigi ◽  
Eslamimanesh Ali ◽  
Amir H. Mohammadi
Keyword(s):  
Experimental Study ◽  
Hydrogen Sulfide ◽  
Induction Time ◽  
Hydrate Formation ◽  
Presence And Absence

The inhibition of tetrahydrofuran clathrate-hydrate formation with antifreeze protein

2003 ◽  
Vol 81 (1-2) ◽  
pp. 17-24 ◽  
Author(s):  
H Zeng ◽  
L D Wilson ◽  
V K Walker ◽  
J A Ripmeester
Keyword(s):  
Induction Time ◽  
Crystal Morphology ◽  
Choristoneura Fumiferana ◽  
Hydrate Formation ◽  
Antifreeze Protein ◽  
Clathrate Hydrate ◽  
Inhibition Mechanism ◽  
Type I ◽  
Inhibition Activity ◽  
Hydrate Crystal

The effect of Type I fish antifreeze protein (AFP) from the winter flounder, Pleuronectes americanus (Walbaum), (WfAFP) on the formation of tetrahydrofuran (THF) clathrate hydrate was studied by observing changes in THF crystal morphology and determining the induction time for nucleation. AFP retarded THF clathrate-hydrate growth at the tested temperatures and modified the THF clathrate-hydrate crystal morphology from octahedral to plate-like. AFP appears to be even more effective than the kinetic inhibitor, polyvinylpyrrolidone (PVP). Recombinant AFP from an insect, a spruce budworm, Choristoneura fumiferana (Clem.), moth, (Cf) was also tested for inhibition activity by observation of the THF-hydrate-crystal-growth habit. Like WfAFP, CfAFP appeared to show adsorption on multiple THF-hydrate-crystal faces. A protein with no antifreeze activity, cytochrome C, was used as a control and it neither changed the morphology of the THF clathrate-hydrate crystals, nor retarded the formation of the hydrate. Preliminary experiments on the inhibition activity of WfAFP on a natural gas hydrate assessed induction time and the amount of propane gas consumed. Similar to the observations for THF, the data indicated that WfAFP inhibited propane-hydrate growth. Taken together, these results support our hypothesis that AFPs can inhibit clathrate-hydrate growth and as well, offer promise for the understanding of the inhibition mechanism. PACS No.: 87.90ty

Experimental study and modeling of the kinetics of refrigerant hydrate formation

2015 ◽  
Vol 82 ◽  
pp. 47-52 ◽  
Author(s):  
Hamed Hashemi ◽  
Saeedeh Babaee ◽  
Amir H. Mohammadi ◽  
Paramespri Naidoo ◽  
Deresh Ramjugernath
Keyword(s):  
Experimental Study ◽  
Hydrate Formation ◽  
Kinetics Of

Intermolecular Forces in Clathrate Hydrate Related Processes

2015 ◽  
Author(s):  
Remi-Erempagamo T. Meindinyo ◽  
Thor Martin Svartås
Keyword(s):  
Petroleum Industry ◽  
Hydrate Formation ◽  
Intermolecular Forces ◽  
Clathrate Hydrate ◽  
Formation Processes ◽  
Scientific Interest ◽  
Thermodynamics And Kinetics ◽  
Gas Hydrate Formation ◽  
Underlying Processes ◽  
Kinetics Of

The thermodynamics and kinetics of clathrate hydrate formation processes are topics of high scientific interest, especially in the petroleum industry. Researchers have made efforts at understanding the underlying processes that explicate the macroscopic observations from experiments and other research methods of gas hydrate formation. To achieve this, they have employed theories founded upon force related intermolecular interactions. Some of the theories and concepts employed include hydrogen bonding, the Leonard Jones force principle, and steric interactions. This paper gives a brief review of how these intermolecular interaction principles have been understood, and used as tools, in explaining the inaccessible microscopic processes, that characterize clathrate hydrate formation. It touches upon nucleation, growth, and inhibition processes.

Kinetics of Trifluoromethane Clathrate Hydrate Formation from CHF3 Gas and Ice Particles

2017 ◽  
Vol 121 (38) ◽  
pp. 7089-7098 ◽  
Author(s):  
Jaruwan Amtawong ◽  
Suvrajit Sengupta ◽  
Michael T. Nguyen ◽  
Nicole C. Carrejo ◽  
Jin Guo ◽  
...  
Keyword(s):  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Ice Particles ◽  
Kinetics Of

scholarly journals Kinetics of (TBAF + CO2) semi-clathrate hydrate formation in the presence and absence of SDS

2018 ◽  
Vol 15 (2) ◽  
pp. 375-384 ◽  
Author(s):  
A. Mohammadi ◽  
M. Pakzad ◽  
A. H. Mohammadi ◽  
A. Jahangiri
Keyword(s):  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Presence And Absence ◽  
Kinetics Of

scholarly journals Insights into Kinetics of Methane Hydrate Formation in the Presence of Surfactants

Processes ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 598 ◽  
Author(s):  
Pandey ◽  
Daas ◽  
von Solms
Keyword(s):  
Induction Time ◽  
Methane Hydrate ◽  
Large Scale ◽  
Sodium Dodecyl ◽  
Hydrate Formation ◽  
Gas Storage ◽  
Vital Role ◽  
Gas Uptake ◽  
Formation Kinetics ◽  
Kinetics Of

Sodium dodecyl sulfate (SDS) is a well-known surfactant, which can accelerate methane hydrate formation. In this work, methane hydrate formation kinetics were studied in the presence of SDS using a rocking cell apparatus in both temperature-ramping and isothermal modes. Ramping and isothermal experiments together suggest that SDS concentration plays a vital role in the formation kinetics of methane hydrate, both in terms of induction time and of final gas uptake. There is a trade-off between growth rate and gas uptake for the optimum SDS concentration, such that an increase in SDS concentration decreases the induction time but also decreases the gas storage capacity for a given volume. The experiments also confirm the potential use of the rocking cell for investigating hydrate promoters. It allows multiple systems to run in parallel at similar experimental temperature and pressure conditions, thus shortening the total experimentation time. Understanding methane hydrate formation and storage using SDS can facilitate large-scale applications such as natural gas storage and transportation.

Characterization of CO2 Storage by Clathrate Hydrate Crystallization

2012 ◽  
Vol 433-440 ◽  
pp. 1260-1264
Author(s):  
Ni Liu ◽  
Xiao Bo Xuan ◽  
Ju Li ◽  
Dao Ping Liu ◽  
Ying Ming Xie ◽  
...  
Keyword(s):  
High Pressure ◽  
Induction Time ◽  
Hydrate Formation ◽  
Clathrate Hydrate ◽  
Small Scale ◽  
Equilibrium Curve ◽  
Supercooling Degree ◽  
And Storage

A potential way of CO2 capture and storage by hydrates is proposed in this paper. The characteristics of hydrate formation is investigated in a small scale dynamic reactor under high pressure conditions from 2-3.5Mpa. Temperature varied between 0.5-4°C. The effect of supercooling degree and overpressure on hydrates formation were discussed. Hydrates formation can be completely finished within 150min and the final pressure-temperature points of system are just on the hydrates equilibrium curve. The induction time increasing with the decreasing of supercooling degree and increase of pressure. It is less than 40min under the experiment conditions.

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