scholarly journals From Kinetic Study to Thermal Safety Assessment: Application to Peroxyformic Acid Synthesis

2012 ◽  
Vol 51 (43) ◽  
pp. 13999-14007 ◽  
Author(s):  
Sébastien Leveneur ◽  
Martin Thönes ◽  
Jean-Pierre Hébert ◽  
Bechara Taouk ◽  
Tapio Salmi
Keyword(s):  
Kinetic Study ◽  
Safety Assessment ◽  
Acid Synthesis ◽  
Thermal Safety ◽  
Thermal Safety Assessment ◽  
Peroxyformic Acid

Thermal safety assessment for solid organic peroxides

2020 ◽  
Vol 68 ◽  
pp. 104292
Author(s):  
Shang-Hao Liu ◽  
Yan-Ru Wang ◽  
Cheng-Lei Xiong ◽  
Mitali Das
Keyword(s):  
Safety Assessment ◽  
Organic Peroxides ◽  
Thermal Safety ◽  
Thermal Safety Assessment

Thermal safety assessment for catalytic decomposition of hydrogen peroxide by dynamic analysis

2017 ◽  
Vol 109 ◽  
pp. 46-54 ◽  
Author(s):  
Miguel Ángel Gómez García ◽  
Izabela Dobrosz-Gómez ◽  
Juan Carlos Ojeda Toro
Keyword(s):  
Hydrogen Peroxide ◽  
Dynamic Analysis ◽  
Safety Assessment ◽  
Catalytic Decomposition ◽  
Thermal Safety ◽  
Thermal Safety Assessment

Kinetic Study of Sodium-Water Reaction Phenomena by Differential Thermal Analysis

2012 ◽  
Author(s):  
Shin Kikuchi ◽  
Hiroshi Seino ◽  
Akikazu Kurihara ◽  
Hiroyuki Ohshima
Keyword(s):  
Heat Transfer ◽  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Kinetic Study ◽  
Rate Constant ◽  
Reaction Temperature ◽  
Safety Assessment ◽  
Liquid Sodium ◽  
Pressurized Water ◽  
Exponential Factor

In a sodium-cooled fast reactor (SFR), if a heat transfer tube in the steam generator (SG) is failed, high pressurized water vapor blows into the liquid sodium and sodium-water reaction (SWR) takes place. SWR may cause damage to the surface of the neighboring heat transfer tubes by thermal and chemical effects. Therefore, it is important to clearly understand the SWR for safety assessment of the SG. From recent study, sodium (Na)–sodium hydroxide (NaOH) reaction as secondary surface reaction of the SWR phenomena in a SFR was identified by ab initio method [1]. However, kinetics of this reaction is a still open question. It is important to obtain quantitative rate constant of sodium monoxide (Na2O) generation by Na-NaOH reaction because Na2O may accelerate the corrosive and erosive effects. Differential thermal analysis (DTA) provides us with the valuable information on the kinetic parameters, including activation energy, pre-exponential factor (frequency factor) and reaction rate constant. Thus, kinetic study of Na–NaOH reaction has been carried out by using DTA technique. The parameters, including melting points of Na and NaOH, phase transition temperature of NaOH, Na-NaOH reaction temperature and the decomposition temperature of sodium hydride (NaH) were identified from DTA curves. Na, NaOH, and Na2O as major chemical species were observed from the X-ray diffraction (XRD) analysis of the residues after the DTA experiment. It was inferred that Na2O could be generated as a reaction product. Based on the measured reaction temperature, the first-order rate constant of Na2O generation was obtained by the application of the laws of chemical kinetics. From the estimated rate constant, it was found that Na2O generation should be considered during SWR. The results can be the basis for developing a chemical reaction model used in a multi-dimensional sodium-water reaction code, SERAPHIM, being developed by the Japan Atomic Energy Agency (JAEA) toward the safety assessment of the SG in a SFR.

Peroxyformic Acid Formation: A Kinetic Study

2009 ◽  
Vol 48 (3) ◽  
pp. 1372-1375 ◽  
Author(s):  
Paolo De Filippis ◽  
Marco Scarsella ◽  
Nicola Verdone
Keyword(s):  
Kinetic Study ◽  
Acid Formation ◽  
Peroxyformic Acid

Kinetic Study and Modeling of Peroxypropionic Acid Synthesis from Propionic Acid and Hydrogen Peroxide Using Homogeneous Catalysts

2008 ◽  
Vol 47 (3) ◽  
pp. 656-664 ◽  
Author(s):  
Sébastien Leveneur ◽  
Tapio Salmi ◽  
Dmitry Yu. Murzin ◽  
Lionel Estel ◽  
Johan Wärnå ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Kinetic Study ◽  
Propionic Acid ◽  
Acid Synthesis ◽  
Homogeneous Catalysts

Kinetic study on liquid sodium–silica reaction for safety assessment of sodium-cooled fast reactor

2015 ◽  
Vol 121 (1) ◽  
pp. 45-55 ◽  
Author(s):  
Shin Kikuchi ◽  
Nobuyoshi Koga ◽  
Hiroshi Seino ◽  
Shuji Ohno
Keyword(s):  
Kinetic Study ◽  
Fast Reactor ◽  
Safety Assessment ◽  
Liquid Sodium
Sign in / Sign up

Export Citation Format

Share Document