How do surfactants control the agglomeration of clathrate hydrates?

PM Naullage, AA Bertolazzo, V Molinero - ACS central science, 2019 - ACS Publications
Clathrate hydrates can spontaneously form under typical conditions found in oil and gas
pipelines. The agglomeration of clathrates into large solid masses plugs the pipelines …

The clathrate–water interface is oleophilic

AA Bertolazzo, PM Naullage, B Peters… - The Journal of …, 2018 - ACS Publications
The slow nucleation of clathrate hydrates is a central challenge for their use in the storage
and transportation of natural gas. Molecules that strongly adsorb to the clathrate–water …

The effect of surfactants on hydrate particle agglomeration in liquid hydrocarbon continuous systems: a molecular dynamics simulation study

B Fang, F Ning, S Hu, D Guo, W Ou, C Wang, J Wen… - RSC …, 2020 - pubs.rsc.org
Anti-agglomerants (AAs), both natural and commercial, are currently being considered for
gas hydrate risk management of petroleum pipelines in offshore operations. However, the …

Direct measurements of the interactions between clathrate hydrate particles and water droplets

C Liu, M Li, G Zhang, CA Koh - Physical Chemistry Chemical Physics, 2015 - pubs.rsc.org
Clathrate hydrate particle agglomeration is often considered to be one of the key limiting
factors in plug formation. The hydrate particle–water interaction can play a critical role in …

Hydrophobic hydration and the effect of NaCl salt in the adsorption of hydrocarbons and surfactants on clathrate hydrates

F Jiménez-Ángeles, A Firoozabadi - ACS Central Science, 2018 - ACS Publications
Adsorption of functional molecules on the surface of hydrates is key in the understanding of
hydrate inhibitors. We investigate the adsorption of a hydrocarbon chain, nonionic and ionic …

Competitive interfacial effects of surfactant chemicals on clathrate hydrate particle cohesion

EP Brown, CA Koh - Energy & Fuels, 2016 - ACS Publications
In oilfield production conditions, many chemicals are present in the form of natural
surfactants that occur in the oil phase as well as additives that are injected to control the …

[HTML][HTML] Microscopic insights on clathrate hydrate growth from non-equilibrium molecular dynamics simulations

A Phan, M Stamatakis, CA Koh, A Striolo - Journal of colloid and interface …, 2023 - Elsevier
Clathrate hydrates form and grow at interfaces. Understanding the relevant molecular
processes is crucial for developing hydrate-based technologies. Many computational …

Molecular mechanisms responsible for hydrate anti-agglomerant performance

A Phan, T Bui, E Acosta, P Krishnamurthy… - Physical Chemistry …, 2016 - pubs.rsc.org
Steered and equilibrium molecular dynamics simulations were employed to study the
coalescence of a sI hydrate particle and a water droplet within a hydrocarbon mixture. The …

Microscopic insights into the effects of anti-agglomerant surfactants on surface characteristics of tetrahydrofuran hydrate

W Li, J Pang, L Peng, B Fang, W Ou, Z Tao, Z Liu… - Energy & …, 2023 - ACS Publications
The formation of clathrate hydrates in pipelines is potentially threatening to exploration and
gas transportation in the petroleum industry. To reduce such risks, various surfactants have …

Micromechanical interactions between clathrate hydrate particles and water droplets: experiment and modeling

C Liu, M Li, C Liu, K Geng, Y Li - Energy & Fuels, 2016 - ACS Publications
The micromechanical interactions between hydrate particles and unconverted water
droplets play an important role in determining hydrate agglomeration, which is a key cause …