Occurrence of methane hydrate in saturated and unsaturated solutions of sodium chloride and water in dependence of temperature and pressure

AIChE Journal ◽  
1983 ◽  
Vol 29 (4) ◽  
pp. 651-657 ◽  
Author(s):  
J. L. De Roo ◽  
C. J. Peters ◽  
R. N. Lichtenthaler ◽  
G. A. M. Diepen
Keyword(s):  
Sodium Chloride ◽  
Methane Hydrate ◽  
Temperature And Pressure

Effect of Fulvic Acid and Sodium Chloride on the Phase Equilibrium of Methane Hydrate in Mixed Sand–Clay Sediment

2019 ◽  
Vol 64 (2) ◽  
pp. 632-639 ◽  
Author(s):  
Tao Lv ◽  
Xiaosen Li ◽  
Zhaoyang Chen ◽  
Chungang Xu ◽  
Yu Zhang ◽  
...  
Keyword(s):  
Phase Equilibrium ◽  
Sodium Chloride ◽  
Fulvic Acid ◽  
Methane Hydrate ◽  
Clay Sediment

scholarly journals Pressure and temperature conditions for methane hydrate dissociation in sodium chloride solutions.

1995 ◽  
Vol 29 (5) ◽  
pp. 325-329 ◽  
Author(s):  
Tatsuo Maekawa ◽  
Shiro Itoh ◽  
Susumu Sakata ◽  
Shun-ichiro Igari ◽  
Noboru Imai
Keyword(s):  
Sodium Chloride ◽  
Methane Hydrate ◽  
Hydrate Dissociation ◽  
Chloride Solutions ◽  
Sodium Chloride Solutions ◽  
Temperature Conditions

The Occurrence of Methane Hydrate in Ternary and Quaternary Systems of Methane, Water, Certain Organics, and Sodium Chloride

2006 ◽  
Vol 912 (1) ◽  
pp. 502-514 ◽  
Author(s):  
M. M. MOOIJER-van den HEUVEL ◽  
M. REUVERS ◽  
R. M. De DEUGD ◽  
C. J. PETERS ◽  
J. De SWAAN ARONS
Keyword(s):  
Sodium Chloride ◽  
Methane Hydrate ◽  
Quaternary Systems

The Use of Ultrasound for Obtaining Pharmaceutical Grade Sodium Chloride

2016 ◽  
Vol 10 (3) ◽  
pp. 337-341
Author(s):  
Oleg Yurchenko ◽  
◽  
Olga Kalinenko ◽  
Olexandr Baklanov ◽  
Larisa Baklanova ◽  
...  
Keyword(s):  
Sodium Chloride ◽  
Spectroscopy Method ◽  
Table Salt ◽  
Sulfate Ions ◽  
The Us ◽  
Crystallization Conditions ◽  
Temperature And Pressure ◽  
Crystallization Stage ◽  
Natural Brine

The use of ultrasound (US) in the preparation of pharmaceutical grade (PG) sodium chloride by the sampling of final product from a vacuum evaporator during the process of obtaining the “Extra” class table salt at the crystallization stage of the sodium chloride has been investigated. The US had been used: 1) for the content control of the base matter - sodium chloride in the stock – natural brine (sonoluminescent spectroscopy method). It is necessary to create the appropriate crystallization conditions by the control of the vacuum evaporator parameters - temperature and pressure; 2) at the crystallization stage of the sodium chloride to reduce the co-crystallization between the sodium chloride and the sulfate ions. It has been shown that the use of US allows reducing the sulfate ions content in the final product and getting sodium chloride PG satisfying the requirements of pharmacopoeia standard (PS) 42-2572-88.

Effects of temperature and pressure on the thermal expansion of sodium chloride

2012 ◽  
Vol 85 (4) ◽  
pp. 045707 ◽  
Author(s):  
X W Sun ◽  
Z J Liu ◽  
T Song ◽  
Z R Zhang ◽  
B Kong ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Sodium Chloride ◽  
Effects Of Temperature ◽  
Temperature And Pressure

scholarly journals Molecular Dynamics Simulation and Experimental Study on the Growth of Methane Hydrate in Presence of Methanol and Sodium Chloride

2017 ◽  
Vol 105 ◽  
pp. 5026-5033 ◽  
Author(s):  
Nilesh Choudhary ◽  
Omkar Singh Kushwaha ◽  
Gaurav Bhattacharjee ◽  
Suman Chakrabarty ◽  
Rajnish Kumar
Keyword(s):  
Molecular Dynamics ◽  
Experimental Study ◽  
Sodium Chloride ◽  
Molecular Dynamics Simulation ◽  
Methane Hydrate ◽  
Dynamics Simulation

THEORETICAL DESCRIPTION OF METHANE HYDRATE EQUILIBRIUM IN A WIDE RANGE OF TEMPERATURE AND PRESSURE

2012 ◽  
Vol 01 (02) ◽  
pp. 1250017 ◽  
Author(s):  
RAVIL ZHDANOV ◽  
OLEG SUBBOTIN ◽  
LI-JEN CHEN ◽  
VLADIMIR BELOSLUDOV
Keyword(s):  
High Temperatures ◽  
Methane Hydrate ◽  
Cell Structure ◽  
Pure Water ◽  
Theoretical Description ◽  
Guest Molecules ◽  
Wide Range ◽  
Temperature And Pressure ◽  
Stability Area ◽  
Good Agreement

Theoretical approach was developed for description of clathrate hydrates stability area at low and modestly high temperatures on molecular level. The approach permits to account for interactions between guest molecules and dependence of unit cell structure upon guest's sort, temperature and pressure. Non-ideality of the gas phase was accounted using Van-der-Waals equation of state. Within this approach, methane hydrate calculations have been performed both for low temperature and low pressure region (in equilibrium with ice Ih) and for modestly high temperatures and pressures (in equilibrium with liquid pure water). Calculations show the notable dependence of hydrates thermodynamic properties upon the guest-guest interactions. For methane hydrates, the guest-guest interaction energy can reach 10% of the guest-host value. The results of calculations are in good agreement with available experimental data. This method is applicable for accurate prediction of clathrate hydrate stability in a wide range of P–T conditions.

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