Temperature-Dependent Thermodynamic Properties of Amino Acids in Aqueous Imidazolium-Based Ionic Liquid

2020 ◽  
Vol 65 (4) ◽  
pp. 1473-1487
Author(s):  
Harsh Kumar ◽  
Arjuna Katal ◽  
Priyank Kumar Sharma
Keyword(s):  
Amino Acids ◽  
Ionic Liquid ◽  
Thermodynamic Properties ◽  
Temperature Dependent

scholarly journals Using Reverse Osmosis Membrane at High Temperature for Water Recovery and Regeneration from Thermo-Responsive Ionic Liquid-Based Draw Solution for Efficient Forward Osmosis

Membranes ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 588
Author(s):  
Eiji Kamio ◽  
Hiroki Kurisu ◽  
Tomoki Takahashi ◽  
Atsushi Matsuoka ◽  
Tomohisa Yoshioka ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
High Temperature ◽  
Energy Saving ◽  
Osmotic Pressure ◽  
Reverse Osmosis ◽  
Forward Osmosis ◽  
Solution Temperature ◽  
Water Recovery ◽  
Temperature Dependent ◽  
Draw Solution

Forward osmosis (FO) membrane process is expected to realize energy-saving seawater desalination. To this end, energy-saving water recovery from a draw solution (DS) and effective DS regeneration are essential. Recently, thermo-responsive DSs have been developed to realize energy-saving water recovery and DS regeneration. We previously reported that high-temperature reverse osmosis (RO) treatment was effective in recovering water from a thermo-responsive ionic liquid (IL)-based DS. In this study, to confirm the advantages of the high-temperature RO operation, thermo-sensitive IL-based DS was treated by an RO membrane at temperatures higher than the lower critical solution temperature (LCST) of the DS. Tetrabutylammonium 2,4,6-trimethylbenznenesulfonate ([N4444][TMBS]) with an LCST of 58 °C was used as the DS. The high-temperature RO treatment was conducted at 60 °C above the LCST using the [N4444][TMBS]-based DS-lean phase after phase separation. Because the [N4444][TMBS]-based DS has a significantly temperature-dependent osmotic pressure, the DS-lean phase can be concentrated to an osmotic pressure higher than that of seawater at room temperature (20 °C). In addition, water can be effectively recovered from the DS-lean phase until the DS concentration increased to 40 wt%, and the final DS concentration reached 70 wt%. From the results, the advantages of RO treatment of the thermo-responsive DS at temperatures higher than the LCST were confirmed.

Synthesis and thermodynamic properties of a novel pyridinium-based asymmetrical gemini ionic liquid

2015 ◽  
Vol 32 (12) ◽  
pp. 2369-2374 ◽  
Author(s):  
Xuzhao Yang ◽  
Jun Wang ◽  
Wenyuan Zou ◽  
Jinchao Wu
Keyword(s):  
Ionic Liquid ◽  
Thermodynamic Properties

scholarly journals THERMODYNAMIC PROPERTIES OF SOLUTIONS OF AMINO ACIDS AND RELATED SUBSTANCES

1942 ◽  
Vol 144 (3) ◽  
pp. 737-745
Author(s):  
Paul K. Smith ◽  
Alice T. Gorham ◽  
Elizabeth R.B. Smith
Keyword(s):  
Amino Acids ◽  
Thermodynamic Properties ◽  
Related Substances

Molecular Dynamics Simulation of Thermodynamic Properties for CO2/Ionic Liquid Systems

2009 ◽  
Vol 25 (11) ◽  
pp. 2291-2295
Author(s):  
WANG Wei-Bin ◽  
◽  
◽  
YIN Jian-Zhong ◽  
SUN Li-Hua ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Ionic Liquid ◽  
Molecular Dynamics Simulation ◽  
Thermodynamic Properties ◽  
Dynamics Simulation ◽  
Liquid Systems
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