A simulation of methane hydrate formation in nickel chloride solution

Article Engineering, Chemical

Molecular mechanism for methane hydrate nucleation on corroded iron surface

Peng Hu et al.

Summary: Experimental results showed that the position of particles significantly affected the induction time of methane hydrate formation. Corroded iron particles were found to shorten the induction time for methane hydrate formation.

CHEMICAL ENGINEERING SCIENCE (2022)

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Article Engineering, Environmental

Self-preservation effect exceeding 273.2 K by introducing deuterium oxide to form methane hydrate

Jun Chen et al.

Summary: The self-preservation effect of methane hydrate was improved by introducing deuterium oxides (D2O) as host molecules, leading to an increase in stability.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Molecular dynamics simulations of the effects of metal nanoparticles on methane hydrate formation

Ni Liu et al.

Summary: This study investigates the effects of metal and metal oxide nanoparticles on methane hydrate formation through nanosecond simulations. The results show that different types and concentrations of nanoparticles have varying degrees of promotion on methane hydrate generation. The excellent thermal conductivity of metal nanoparticles is the main reason for their promotion effect. Additionally, the study finds that different single metal oxide nanoparticles have different promotion effects, and multiple metal oxide nanoparticle systems exhibit better promotion effects.

JOURNAL OF MOLECULAR LIQUIDS (2022)

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Review Engineering, Chemical

Hydrate based desalination for sustainable water treatment: A review

Seyed Mohammad Montazeri et al.

Summary: Desalination processes are essential for addressing the energy-water-environment nexus and water scarcity globally. Hydrate based desalination (HBD) is an innovative method that can efficiently desalinate various salinity streams and recover clean water in the form of gas hydrates. HBD shows strong potential as an energy efficient and selective desalination method, contributing to the overall sustainability of the energy-water-environment nexus.

DESALINATION (2022)

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Article Chemistry, Physical

Molecular dynamics simulation of CO2 hydrate growth in salt water

Xianwu Jing et al.

Summary: To achieve carbon peaking and carbon neutrality goals, research on carbon capture, utilization, and storage (CCUS) is crucial. Using molecular dynamics simulation, this research investigates the growth of CO2 hydrate in NaCl aqueous solution. The study reveals that not all water molecules participate in hydrate formation. Analysis based on the independent gradient model shows that Cl- ions and water molecules form hydrogen bonds, while Na+ ions do not participate in hydrate formation. Furthermore, NaCl acts as a hydrate inhibitor, providing important guidance for the development of highly effective hydrate inhibitors.

JOURNAL OF MOLECULAR LIQUIDS (2022)

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Article Energy & Fuels

A covering liquid method to intensify self-preservation effect for safety of methane hydrate storage and transportation

Jun Chen et al.

Summary: This study proposes a covering liquid method to enhance self-preservation effect for methane storage. The experimental results show that the covering liquid can reduce the decomposition percentage of methane hydrate, but it only works below the freezing point of water.

PETROLEUM SCIENCE (2022)

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Article Energy & Fuels

Insights into kinetic inhibition effects of MEG, PVP, and L-tyrosine aqueous solutions on natural gas hydrate formation

Amir Saberi et al.

Summary: This study investigated the impact of three chemicals at different concentrations on gas hydrate formation, and identified the optimal choices. Furthermore, the combination of PVP and MEG in an aqueous solution was found to have a simultaneous synergistic impact on both natural gas hydrate formation induction time and the rate of gas consumption.

PETROLEUM SCIENCE (2021)

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Article Chemistry, Physical

Molecular simulation study of methane hydrate formation mechanism in NaCl solutions with different concentrations

Jiafang Xu et al.

Summary: The effects of NaCl on hydrate formation depend on its concentrations. Low concentrations of NaCl promote hydrate formation while high concentrations inhibit it. Higher salt concentrations prolong the induction time of hydrate formation by reducing tetrahedral water molecules and inhibiting methane dissolution. The ions in NaCl solution can disrupt cage structures and retard hydrate growth.

CHEMICAL PHYSICS (2021)

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Article Thermodynamics

Hydrate-Based Method to Remove Cr(III) and Ni(II) in Chromium Hydroxide Sulfate and Nickel Sulfate Hexahydrate Solutions

Fenglong Hu et al.

Summary: The hydrate-based method is a potential way to remove heavy metal ions. Both chromium hydroxide sulfate and nickel sulfate hexahydrate were found to inhibit methane hydrate formation, with chromium hydroxide sulfate showing a higher removal efficiency.

JOURNAL OF CHEMICAL AND ENGINEERING DATA (2021)

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Article Chemistry, Physical

Molecular dynamics simulation and in-situ MRI observation of organic exclusion during CO2 hydrate growth

Lunxiang Zhang et al.

Summary: The study found that organic macromolecules cannot be trapped in the hydrate structure but instead form a concentration gradient of dissolved organic substances during hydrate formation. This demonstrates the potential of hydrate-based technology for organic wastewater treatment.

CHEMICAL PHYSICS LETTERS (2021)

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Article Chemistry, Physical

Molecular Dynamics simulation study of the performance of different inhibitors for methane hydrate growth

Florianne Castillo-Borja et al.

Summary: The study found that TMACl is the best inhibitor for preventing methane hydrate growth, as it reduces the number of hydrogen bonds between water molecules. Aprotic and protic ionic liquids act differently as inhibitors, with protic ionic liquids showing a competitive advantage in forming hydrogen bonds with water molecules.

JOURNAL OF MOLECULAR LIQUIDS (2021)

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Article Engineering, Environmental

Evaluation of kinetic salt-en ric hment behavior and separation performance of HFC-152a hydrate-based desalination using an experimental measurement and a thermodynamic correlation

Junghoon Mok et al.

Summary: This study investigated the thermodynamic stability and kinetic growth behavior of HFC-152a hydrate, finding that HFC-152a hydrate has a higher hydration capacity in the presence of NaCl. The results suggest that HFC-152a may be a superior candidate for the HBD process.

WATER RESEARCH (2021)

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Article Energy & Fuels

Organic Rankine cycle integrated with hydrate-based desalination for a sustainable energy-water nexus system

Tianbiao He et al.

Summary: Clathrate hydrate-based desalination is a promising but energy-intensive technology. By utilizing LNG cold exergy, a sustainable process integrated with an organic Rankine cycle was proposed to simultaneously generate fresh water and electricity. Economic analysis showed that this proposed process could achieve zero specific energy consumption for desalination and generate extra power.

APPLIED ENERGY (2021)

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Article Engineering, Chemical

Comparing hydrate-based method with freezing/thawing method for chromium hydroxide sulfate removal close to the melting point of ice

Jian-Jian Wu et al.

Summary: In this study, freezing/thawing method and hydrate-based method were compared for the removal of chromium hydroxide sulfate near the melting point of ice. The freezing/thawing method showed higher efficiency and was recommended for chromium hydroxide sulfate removal when the concentration was below 800 ppm.

SEPARATION AND PURIFICATION TECHNOLOGY (2021)

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Article Engineering, Environmental

A combined hydrate-based method for removing heavy metals from simulated wastewater with high concentrations

Huilian Sun et al.

Summary: An innovative hydrate-based method was proposed to treat wastewater with high concentrations of heavy metal ions, showing effective removal of different ions influenced by factors such as volume ratio, post-treatment method, and ion concentration. The optimal volume ratio was determined to be 4, with vacuum filtration combined with centrifugation as the optimal post-treatment method to significantly increase removal efficiency.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2021)

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Article Environmental Sciences

Gas Hydrate-Based Process for Desalination of Heavy Metal Ions from an Aqueous Solution: Kinetics and Rate of Recovery

Namrata Gaikwad et al.

Summary: This study explores the desalination of heavy metal ions using gas hydrate technology, which eliminates the need for sludge and enhances efficiency by excluding salts and impurities from the solution. The addition of lecithin surfactant improves the kinetics of hydrate formation, leading to efficient desalination, with As5+ ions showing the fastest desalination rate among the selected metal ions.

ACS ES&T WATER (2021)

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Article Chemistry, Physical

Methane hydrate formation in the stacking of kaolinite particles with different surface contacts as nanoreactors: A molecular dynamics simulation study

Yun Li et al.

APPLIED CLAY SCIENCE (2020)

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Article Energy & Fuels

Suppression of methane hydrate dissociation from SDS-dry solution hydrate formation system by a covering liquid method

Yaosong Zeng et al.

FUEL (2020)

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Effect of porous activated carbon particles soaked in cyclopentane on CP-hydrate formation in synthetic produced water

Rafik Mallek et al.

JOURNAL OF WATER PROCESS ENGINEERING (2020)

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Hydrate agglomeration modeling and pipeline hydrate slurry flow behavior simulation

Guangchun Song et al.

CHINESE JOURNAL OF CHEMICAL ENGINEERING (2019)

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Thermodynamic stability and formation kinetics of CHClF2 hydrates in the presence of NiCl2

Yesol Woo et al.

CHEMICAL ENGINEERING SCIENCE (2019)

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Review Engineering, Chemical

Progress and trends in hydrate based desalination (HBD) technology: A review

Jianan Zheng et al.

CHINESE JOURNAL OF CHEMICAL ENGINEERING (2019)

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Rheology of natural gas hydrate slurry: Effect of hydrate agglomeration and deposition

Lin Ding et al.

FUEL (2019)

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Separation of C3H8 and C3H6 from Butyl Alcohol-Octyl Alcohol Vent Gas Mixture via Hydrate Formation in the Presence of SDS and THF in Tap-Water System

Man Liu et al.

JOURNAL OF CHEMICAL AND ENGINEERING DATA (2019)

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The Controlling Factors and Ion Exclusion Mechanism of Hydrate-Based Pollutant Removal

Hongsheng Dong et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2019)

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A novel method to enhance methane hydrate exploitation efficiency via forming impermeable overlying CO2 hydrate cap

Zhen-Feng Sun et al.

APPLIED ENERGY (2019)

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Article Engineering, Environmental

Oleic acid potassium soap: A new potential kinetic promoter for methane hydrate formation

Jun Chen et al.

CHEMICAL ENGINEERING JOURNAL (2019)

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Enhanced CH4 storage in hydrates with the presence of sucrose stearate

Lingli Shi et al.

ENERGY (2019)

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Dissociation characteristics of methane hydrates in South China Sea sediments by depressurization

Mingjun Yang et al.

APPLIED ENERGY (2019)

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Improving methane hydrate formation in highly water-saturated fixed bed with diesel oil as gas channel

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CHEMICAL ENGINEERING JOURNAL (2019)

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Desalination using gas hydrates: The role of crystal nucleation, growth and separation

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Research progress in hydrate-based technologies and processes in China: A review

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Continuous seperation of CO2 from a H2 + CO2 gas mixture using clathrate hydrate

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Effects of additives on continuous hydrate-based flue gas separation

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Selectivity and CO2 capture efficiency in CO2-N-2 clathrate hydrates investigated by in-situ Raman spectroscopy

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Enhancing methane hydrate formation in bulk water using vertical reciprocating impact

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Experimental investigation into formation/dissociation characteristics of methane hydrate in consolidated sediments with resistance measurement

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Free-conditioning dewatering of sewage sludge through in situ propane hydrate formation

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Molecular Dynamics Simulation of Methane Hydrate Growth in the Presence of the Natural Product Pectin

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Molecular dynamics simulations of carbon dioxide hydrate growth in electrolyte solutions of NaCl and MgCl2

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A simulation of methane hydrate formation in nickel chloride solution

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