scholarly journals Energetic Performances of Pure-Silica DDR Zeolite by High-Pressure Intrusion–Extrusion of Electrolyte Aqueous Solutions: A Shock-Absorber with Huge Absorbed Energy

2018 ◽  
Vol 122 (5) ◽  
pp. 2726-2733 ◽  
Author(s):  
Laura Ronchi ◽  
Andrey Ryzhikov ◽  
Habiba Nouali ◽  
T. Jean Daou ◽  
Joël Patarin
Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2145
Author(s):  
Giorgia Confalonieri ◽  
T. Jean Daou ◽  
Habiba Nouali ◽  
Rossella Arletti ◽  
Andrey Ryzhikov

An overview of all the studies on high-pressure intrusion—extrusion of LiCl aqueous solutions in hydrophobic pure silica zeolites (zeosils) for absorption and storage of mechanical energy is presented. Operational principles of heterogeneous lyophobic systems and their possible applications in the domains of mechanical energy storage, absorption, and generation are described. The intrusion of LiCl aqueous solutions instead of water allows to considerably increase energetic performance of zeosil-based systems by a strong rise of intrusion pressure. The intrusion pressure increases with the salt concentration and depends considerably on zeosil framework. In the case of channel-type zeosils, it rises with the decrease of pore opening diameter, whereas for cage-type ones, no clear trend is observed. A relative increase of intrusion pressure in comparison with water is particularly strong for the zeosils with narrow pore openings. The use of highly concentrated LiCl aqueous solutions instead of water can lead to a change of system behavior. This effect seems to be related to a lower formation of silanol defects under intrusion of solvated ions and a weaker interaction of the ions with silanol groups of zeosil framework. The influence of zeosil nanostructure on LiCl aqueous solutions intrusion–extrusion is also discussed.


2018 ◽  
Vol 122 (49) ◽  
pp. 28001-28012 ◽  
Author(s):  
Giorgia Confalonieri ◽  
Andrey Ryzhikov ◽  
Rossella Arletti ◽  
Habiba Nouali ◽  
Simona Quartieri ◽  
...  

Author(s):  
Yohei Tanno ◽  
Tomohiro Naruse ◽  
Shigeru Arai ◽  
Shinichiro Kurita

The Japanese standard “KHK-S-0220” (KHK-code) and the American standard “Boiler and Pressure Vessel Code Sec.8 Div.3” (ASME-code) concerning ultra-high-pressure gas equipment were applied to Hitachi’s ultra-high-pressure compressor, and a series of strength evaluations were carried out. Hitachi produces and maintains ultra-high-pressure reciprocating compressors with a design pressure over 200 MPa. In Japan, ultra-high pressure gas equipment over 100 MPa must be designed according to KHK-code established by the High Pressure Gas Safety Institute of Japan. This Japanese standard was applied to an ultra-high-pressure compressor, and design pressure limits, shakedown limits, required absorbed energy of materials, leak-before-break (LBB), and fatigue strength were evaluated. ASME-code was also applied to the compressor, and strength evaluations like the above were carried out. As a result, it was found that KHK-code and ASME-code gave conservative evaluation of fatigue strength for an ultra-high-pressure compressor.


RSC Advances ◽  
2014 ◽  
Vol 4 (71) ◽  
pp. 37655-37661 ◽  
Author(s):  
A. Ryzhikov ◽  
I. Khay ◽  
H. Nouali ◽  
T. J. Daou ◽  
J. Patarin

Water intrusion–extrusion was studied in pure silica MTT- and STF-type hydrophobic zeolites.


2007 ◽  
Vol 61 (2) ◽  
pp. 171-176 ◽  
Author(s):  
Marion Lawrence-Snyder ◽  
Jon Scaffidi ◽  
S. Michael Angel ◽  
Anna P. M. Michel ◽  
Alan D. Chave

2014 ◽  
Vol 16 (33) ◽  
pp. 17893-17899 ◽  
Author(s):  
A. Ryzhikov ◽  
I. Khay ◽  
H. Nouali ◽  
T. J. Daou ◽  
J. Patarin

A behavior of high pressure intrusion–extrusion of electrolyte solutions in pure silica *BEA-type zeolite depends drastically on electrolyte concentration.


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