Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates

Khan, Muhammad Saad; Lal, Bhajan; Keong, Lau Kok; Ahmed, Iqbal

doi:10.1016/j.fuel.2018.09.001

Cited by 67 publications

(41 citation statements)

References 61 publications

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“…The extent of inhibition is concentration dependent and hydrate mitigation performance at 10 wt% is higher than at 5 wt%. The results are in line with the findings reported in literature [8], [16].…”

Section: Fig 1 Comparison Between Experimental and Simulation Resultsupporting

confidence: 93%

“…While gas hydrates possess potential source of hydrocarbon energy and also medium for storage and transmission of natural gas, they can cause severe threats. Due to gas hydrates, the threat of breakage and plugging of flowlines in subsea cause spillage of containments instigating environmental catastrophe [16]- [22]. Once the pipeline is raptured, the cost of repair and maintenance is high.…”

Section: Introductionmentioning

confidence: 99%

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Simulation of Hydrate Phase Boundary for Natural Gas Mixture with High CO2Content through Simulation

Qasim,

Khan,

Lal

et al. 2019

IJEAT

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Gas hydrates are solid crystalline structures in which water molecules trap small guest gas molecules and encage them through hydrogen bonding. Gas hydrates are known to be problematic in flow assurance applications as they can form plug inside the pipelines during oil and gas production, transportation and processing. In order to inhibit hydrate formation thermodynamically, various chemicals including some alcohols e.g. methanol (MeOH), mono- ethylene glycol (MEG) are used as thermodynamic hydrate inhibitors (THIs). In this paper, a simulation study is performed using PVTsim software wherein it predicts the hydrate formation for pure CO2 solution mixture and CO2 -MEG solution mixture systems using different equation of states. These equations of states include Soave-Redlich-Kwong (SRK), SRK-Peneloux, Peng- Robinson (PR) and Peng-Robinson Peneloux. The simulation results obtained using these equation of states were validated with the experimental data and PRPenelouxEoS was found to be in better agreement. The hydrate formation regions are determined in between the pressure range of 10 to 110 bara for natural gas mixture containing high percentage of CO2 in it. The inhibitors are used in 5, 10 and 20 wt% concentrations. The hydrate inhibition efficiency increased with the increase in concentration. Simulation results showed that methanol performed better in comparison to the other inhibitors at all concentrations.

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Section: Fig 1 Comparison Between Experimental and Simulation Resultsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Simulation of Hydrate Phase Boundary for Natural Gas Mixture with High CO2Content through Simulation

Qasim,

Khan,

Lal

et al. 2019

IJEAT

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is further evidenced by a study conducted by [20] using several ammonium based ILs at 10 wt% by maintaining the same anion, where it shows a similar trend of increasing average suppression temperature as the molecular weight decreases. It is also observed that the concentration of ILs is directly proportional to the average suppression temperature, as shown in research done by [37]. Inhibition performance is also enhanced when higher concentrations of ILs are used.…”

Section: Quaternary Ammonium Saltsmentioning

confidence: 63%

“…Adsorption inhibition shows that inhibitor molecules are adsorbed on the hydrate crystals, whereas perturbation inhibition works by disturbing the water molecules' structure. In the past decade, ionic liquids (ILs), amino acids (AACs) and quaternary ammonium salts (QAS) [37] have been introduced as green hydrate inhibitors, as well as dual function inhibitors, because they are environmentally friendly and have shown good inhibitory performance as both THIs and KHIs [38][39][40][41][42][43][44][45]. ILs are salts that are generally composed of heterocyclic cations and inorganic anions [38].…”

Section: Thermodynamic Hydrate Inhibitors (This) and Low Dosage Hydramentioning

confidence: 99%

“…In evaluating the performance of QAS for gas hydrate inhibition, several methods has been applied, such as the T-cycle method and using highpressure micro differential scanning calorimetry equipment. The Isochoric constant cooling method or T-cycle method is one of the most used method, carried out by [37,[56][57][58][59][60][61][62] with different type of gases to study on the kinetic inhibition of the selected compounds. In this method, 100 mL of liquid sample is poured into the cell which is then vacuumed thoroughly to remove excess air that may still exist in the cell [20,63].…”

Section: Quaternary Ammonium Saltsmentioning

confidence: 99%

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Review on Application of Quaternary Ammonium Salts for Gas Hydrate Inhibition

Hussain

Husin

2020

Applied Sciences

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Gas hydrate solids occurrence is considered as one of the serious challenges in flow assurance as it affects the hydrocarbon production significantly, especially in deep water gas fields. The most cost-effective method to inhibit the formation of hydrate in pipelines is by injecting a hydrate inhibitor agent. Continuous studies have led to a comprehensive understanding on the use of low dosage hydrate inhibitors such as ionic liquid and quaternary ammonium salts which are also known as dual function gas hydrate inhibitors. This paper covers the latest types of quaternary ammonium salts (2020–2016) and a summary of findings which are essential for future studies. Reviews on the effects of length of ionic liquids alkyl chain, average suppression temperatures, hydrate dissociation enthalpies, and electrical conductivity to the effectiveness of the quaternary ammonium salts as gas hydrate inhibitors are included.

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Development of a Prediction Model for Gas Hydrate Formation in Multiphase Pipelines by Artificial Intelligence

et al. 2022

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A prediction model is developed by means of artificial neural networks (ANNs) to determine the gas hydrate formation kinetics in multiphase gas dominant pipelines with crude oil. Experiments are conducted to determine the rate of formation and reaction kinetics of hydrates formation in multiphase systems. Based on the results, an artificial intelligence model is proposed to predict the gas hydrate formation rate in multiphase transmission pipelines. Two ANN models are suggested with single-layer perceptron (SLP) and multilayer perceptron (MLP). The MLP shows more accurate prediction when compared to SLP. The models were predicted accurately with high prediction accuracy both for the pure and multiphase systems.

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Tetramethyl ammonium chloride as dual functional inhibitor for methane and carbon dioxide hydrates

Cited by 67 publications

References 61 publications

Simulation of Hydrate Phase Boundary for Natural Gas Mixture with High CO2Content through Simulation

Simulation of Hydrate Phase Boundary for Natural Gas Mixture with High CO2Content through Simulation

Review on Application of Quaternary Ammonium Salts for Gas Hydrate Inhibition

Development of a Prediction Model for Gas Hydrate Formation in Multiphase Pipelines by Artificial Intelligence

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