The passive effect of clay particles on natural gas hydrate kinetic inhibitors

Liu, Yanzhen; Li, Qingping; Lv, Xiaoyi; Yang, Lei; Wang, Junfeng; Qiao, Fen; Zhao, Jiafei; Qi, Huiping

doi:10.1016/j.energy.2022.126581

Cited by 12 publications

(3 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The majority of silicates, including kaolin, vermiculite, glauconite, talc, and those composing rocks for other minerals exhibit a layered structure [56]. The crystal structure of these layered silicates is built upon two types of structural elements: silicon-oxygen tetrahedron and aluminum-oxygen octahedral (both with oxygen and hydroxyl groups), which combine in various configurations [57,58]. These layers are arranged in different proportions (1:1, 2:1, 2:1:1), resulting in similar structures but various physical (especially the distribution of negative and positive charges on the surface, as well as the types of bonds between atoms and molecules) and chemical properties (interlayer exchangeable ions) [59][60][61].…”

Section: Structural Features and Framework Types Of Layered Silicatesmentioning

confidence: 99%

Recent advances of silicate materials for wastewater treatment: a review

Xu,

Wang,

2024

Mater. Res. Express

View full text Add to dashboard Cite

Heavy metal ions and organic pollutants cause irreversible damage to water environment, thereby posing significant threats to the well-being of organisms. The techniques of adsorption and photocatalytic degradation offer versatile solutions for addressing water pollution challenges, attributed to their inherent sustainability and adaptability. Silicates exhibit exceptional practicality in the realm of environmental protection owing to their structural integrity and robust chemical/thermal stability during hybridization and application process. Furthermore, the abundance of silicate reserves, coupled with their proven effectiveness, has garnered significant attention in recent years. This detailed review compiles and analyzes the extensive body of literature spanning the past six years (2018-2023), emphasizing the pivotal discoveries associated with employing silicates as water purification materials. This review article provides a comprehensive overview of the structure, classification, and chemical composition of diverse silicates and offers a thorough descriptive analysis of their performance in eliminating pollutants. Additionally, the utilization of diatomite as either precursors or substrates for silicates, along with the exploration of their corresponding purification mechanisms is discussed. The review unequivocally verifies the efficiency of silicates and their composites in the effective elimination of various toxic pollutants. However, the development of novel silicates capable of adapting to diverse environmental conditions to enhance pollution control, remains an urgent necessity.

show abstract

Section: Structural Features and Framework Types Of Layered Silicatesmentioning

confidence: 99%

Recent advances of silicate materials for wastewater treatment: a review

Xu,

Wang,

2024

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Due to the complex nature of oil reservoirs, it is imperative to gain further understanding on how varying oil and water contents impact the formation of crude oil emulsion and the effects of interfacial adsorption of natural emulsifiers, especially asphaltenes, on emulsion formation, which ultimately affects the production of crude oil in oilfields. In a study carried out by Liu et al, 14 the inhibiting impact of the composite formulation of kinetic and thermodynamic inhibitors on gas hydrate formation in high water cut oil−water emulsions was investigated so as to deduce how to decrease the operational cost of oil and gas pipelines when confronted with high water content in oilfields. Al-Sakkaf and Onaizi 15 also assessed the effect of acidity, basicity, and salinity on crude oil/ water nanoemulsions stabilized by a rhamnolipid biosurfactant.…”

Section: Introductionmentioning

confidence: 99%

Influence of Varying Oil–Water Contents on the Formation of Crude Oil Emulsion and Its Demulsification by a Lab-Grown Nonionic Demulsifier

Adewunmi,

Hussain,

Patil

et al. 2024

ACS Omega

View full text Add to dashboard Cite

This study describes how varying oil/water contents affect emulsion formation and the impact they have on emulsion droplet size, viscosity, and interfacial behavior. Crude oil (continuous phase) volume fractions of 40, 50, 60, and 70 vol % were probed in the various W/O emulsions formed. Experimental results from optical morphology revealed the emulsion droplets kept reducing as the crude oil fraction kept increasing, while the droplets were nearly unnoticeable in the emulsions derived from 60 and 70% crude oil. The viscosity–shear rate of emulsions produced from 40, 50, and 60 vol % crude oil exhibited a non-Newtonian behavior owing to the substantial volume of water content in their emulsions, whereas the viscosity–shear rate of the emulsion with 70 vol % crude oil exhibited a Newtonian behavior similar to the pure crude oil, suggesting a thorough blending of oil–water at this crude oil fraction. Besides, the viscosity–temperature measurements revealed that the viscosity of these emulsions diminished as the temperature increased and the viscosity reduction became more noticeable in an emulsion comprising 70 vol % crude oil. In the interfacial assessment, the increased crude oil content in the produced emulsion led to a sharp reduction in the interfacial tension (IFT). The IFT values after 500 s contacts between the emulsion and water (surrounding phase) were 11.86, 10.02, 8.08, and 6.99 mN/m for 40, 50, 60, and 70 vol % crude oil, respectively. Demulsification experiments showed that water removal becomes more challenging with a large volume of crude oil and a small water content. Demulsification performances of the lab-grown nonionic demulsifier (NID) after 10 h of demulsification activity at room temperature (25 °C) were 98, 90, 17.5, and 10% for the emulsions formed from 40, 50, 60, and 70 vol % crude oil, respectively, indicating that the demulsification degree decreases with an increasing crude oil content. Viscosity–time determination was applied to affirm the activity of NID on the emulsion formulated with a 50% crude oil fraction. The injection of NID in this emulsion triggered a sharp viscosity reduction, indicating the adsorption of NID at the oil–water interface and disruption of emulsifiers, enabling emulsion stability.

show abstract

“…Gas hydrate is a kind of solid crystalline compound with a nonstoichiometric ratio of water molecules and gas small molecules at low temperature and high pressure. [1,2] Gas hydrates in oil and gas pipelines are one of the most challenging problems in the modern oil and gas industry. The formation of gas hydrates in pipelines will cause many problems such as pipeline blockage, output reduction, production platform crisis, and more serious DOI: 10.1002/macp.202300251 pipeline explosions, in addition to pose a security threat to personnel, it can cause serious economic losses and environmental damage.…”

Section: Introductionmentioning

confidence: 99%

Green Polymer Poly‐l‐proline Efficiently Inhibits Formation of Gas Hydrates in Oil–Water System

Qi,

Liu,

Shen

et al. 2023

Macro Chemistry & Physics

Self Cite

View full text Add to dashboard Cite

Green polymer poly‐L‐proline, as a new type of biodegradable polymer material, has a wide application prospect in the field of environmental protection. Recent studies have shown that poly‐L‐proline can also act as a green inhibitor that highly effective in inhibiting the production of gas hydrates in oil‐water systems. As a natural polymer material, poly‐L‐proline has good biocompatibility and biodegradability and will not cause pollution to the environment. It has been found that adding an appropriate amount of poly‐L‐proline to the oil‐water system can significantly inhibit the formation of gas hydrates. This is because poly‐L‐proline can reduce the concentration of dissolved gases in water by adsorbing and dispersing ions and molecules in water, thereby reducing the chance of gas forming hydrates with water. In addition, poly‐L‐proline can also prevent gas molecules from entering water molecules to form hydrates by forming hydrogen bonds with water molecules. This study provides a green, environmentally friendly and efficient solution for controlling the formation of gas hydrates in oil‐water mixtures. In the future, the application prospects of poly‐L‐proline in oil‐water separation, marine engineering, natural gas exploitation and other fields will be broader.This article is protected by copyright. All rights reserved

show abstract

The passive effect of clay particles on natural gas hydrate kinetic inhibitors

Cited by 12 publications

References 36 publications

Recent advances of silicate materials for wastewater treatment: a review

Recent advances of silicate materials for wastewater treatment: a review

Influence of Varying Oil–Water Contents on the Formation of Crude Oil Emulsion and Its Demulsification by a Lab-Grown Nonionic Demulsifier

Green Polymer Poly‐l‐proline Efficiently Inhibits Formation of Gas Hydrates in Oil–Water System

Contact Info

Product

Resources

About