Development of a high efficient gas to hydrate (GTH) conversion process using SDS kinetic promoter for maximizing the CO2 recovery with minimum energy consumption

ZareNezhad, Bahman; Montazeri, Vahab

doi:10.1016/j.enconman.2013.12.030

Cited by 27 publications

(6 citation statements)

References 16 publications

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“… 33 Strong agitation of the system can overcome mass transfer limitation. 8 , 34 For a relatively small reactor with sufficient cooling, the heat transfer limitation does not affect the growth kinetics significantly. 8 Therefore, the gas hydrate growth can be expressed as a first-order reaction.…”

Section: Resultsmentioning

confidence: 99%

“… 8 Therefore, the gas hydrate growth can be expressed as a first-order reaction. Other authors correlated the pressure of the system 8 , 34 or the concentration of CO 2 35 with the growth kinetics. As our experiments give direct information about the molar fraction of hydrate x H with time t , we can write with the maximum molar fraction at the end of growth x H,max and the reaction constant r .…”

Section: Resultsmentioning

confidence: 99%

“…Several models for the growth of gas hydrates have been proposed in the literature, considering different aspects of the three major correlations for hydrate growth: intrinsic growth kinetics, mass transfer limitation, and heat transfer limitation . Strong agitation of the system can overcome mass transfer limitation. , For a relatively small reactor with sufficient cooling, the heat transfer limitation does not affect the growth kinetics significantly . Therefore, the gas hydrate growth can be expressed as a first-order reaction.…”

Section: Resultsmentioning

confidence: 99%

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Raman Spectroscopic Study of the Effect of Aqueous Salt Solutions on the Inhibition of Carbon Dioxide Gas Hydrates

Holzammer

Braeuer

2019

J. Phys. Chem. B

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We present an experimental Raman study on the thermodynamic inhibition effect of different salts (NaCl, KCl, MgCl2, and CaCl2 from 2.5 to 11 wt %) on the formation of carbon dioxide gas hydrates. We performed the experiments in a high-pressure vessel with two phases: a water-rich phase and a CO2-rich phase. We investigated the changes the inhibitors induce in the water-rich phase before the onset of hydrate formation. This includes a study of the change in molar reaction enthalpy between strongly and weakly hydrogen-bonded water and the decrease in solubility of carbon dioxide in water. Additionally, the growth mechanisms of carbon dioxide hydrates were investigated by determining the amount of solid hydrates formed and the reaction constant. The results show that the molar reaction enthalpy, the solubility of CO2, and the amount of solid hydrates formed can be correlated with the effective mole fraction, whereas the reaction constant is not affected by the addition of salts. The decrease of the molar reaction enthalpy can be directly correlated with the equilibrium temperature of the gas hydrates.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Raman Spectroscopic Study of the Effect of Aqueous Salt Solutions on the Inhibition of Carbon Dioxide Gas Hydrates

Holzammer

Braeuer

2019

J. Phys. Chem. B

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“…Research has shown that considering the advantages of the gas hydrates method compared to other methods, it can be used as an effective way to remove carbon dioxide gas. The benefits of the implementation of such a process would be low cost, high safety, and less corrosion [1][2][3]. To use hydrates in industrial applications, several problems must be solved.…”

Section: Introductionmentioning

confidence: 99%

Sequestration and Storage of Carbon Dioxide Using Hydrate Formation Method in the Presence of Copper Oxide Nanoparticles

Montazeri

ZareNezhad

Ghazi

2022

IJEE

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“…The most frequently used additives are surfactants. Sodium dodecyl sulfate (SDS) was employed by ZareNezhad et al, 48 and the electric power consumed at the impeller was studied. It was found that at 1 °C/27 bar the CO 2 gas to hydrate conversion achieved 95% completion within 8 h under quiescent conditions in the presence of 4000 ppm of SDS.…”

Section: Introductionmentioning

confidence: 99%

Phase Equilibrium and Formation Behavior of the CO₂–TBPB Semiclathrate Hydrate for Cold Storage Applications

Wang

Dennis

2017

J. Chem. Eng. Data

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Cold thermal storage is primarily used for demand management on electricity grids due to air conditioner use. The CO2 hydrate has been widely studied as a cold storage medium for its proper phase equilibrium temperature range and large latent heat. This study presents experimental work on the phase equilibrium behavior of the CO2 hydrate under applicable pressures (<10 bar) for the potential to use in air conditioning systems. The formation of hydrate was aided by tetra-n-butylphosphonium bromide (TBPB) at mass fractions of 10, 20, 30, and 37 wt % to lower the required pressure. Instead of using complex calorimeters, the enthalpy of the CO2–TBPB hydrate was measured using a modified T-history method in a self-fabricated pressure tube. Through this test, the enthalpy of the CO2–TBPB hydrate was found to be much higher than for other normally used phase change materials. However, the hydrate formation was also manifested in a large degree of supercooling and a long induction delay. To reduce them, secondary promoters, namely, sodium dodecyl sulfate and TiO2 nanoparticles, were used. Meanwhile, the effect of feed pressure, heat-transfer fluid temperature, promoter concentration, and the memory effect on CO2–TBPB hydrate formation was investigated. This study provides suggestions for effective and efficient operation of CO2–TBPB hydrate-based cold storage air conditioning systems.

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Development of a high efficient gas to hydrate (GTH) conversion process using SDS kinetic promoter for maximizing the CO2 recovery with minimum energy consumption

Cited by 27 publications

References 16 publications

Raman Spectroscopic Study of the Effect of Aqueous Salt Solutions on the Inhibition of Carbon Dioxide Gas Hydrates

Raman Spectroscopic Study of the Effect of Aqueous Salt Solutions on the Inhibition of Carbon Dioxide Gas Hydrates

Sequestration and Storage of Carbon Dioxide Using Hydrate Formation Method in the Presence of Copper Oxide Nanoparticles

Phase Equilibrium and Formation Behavior of the CO₂–TBPB Semiclathrate Hydrate for Cold Storage Applications

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Development of a high efficient gas to hydrate (GTH) conversion process using SDS kinetic promoter for maximizing the CO2 recovery with minimum energy consumption

Cited by 27 publications

References 16 publications

Raman Spectroscopic Study of the Effect of Aqueous Salt Solutions on the Inhibition of Carbon Dioxide Gas Hydrates

Raman Spectroscopic Study of the Effect of Aqueous Salt Solutions on the Inhibition of Carbon Dioxide Gas Hydrates

Sequestration and Storage of Carbon Dioxide Using Hydrate Formation Method in the Presence of Copper Oxide Nanoparticles

Phase Equilibrium and Formation Behavior of the CO2–TBPB Semiclathrate Hydrate for Cold Storage Applications

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Product

Resources

About

Phase Equilibrium and Formation Behavior of the CO₂–TBPB Semiclathrate Hydrate for Cold Storage Applications