Reaction Thermodynamics of Overthermal Decomposition of C6F12O

2019 ◽  
pp. 43-51
Author(s):  
F. P. Zeng ◽  
Z. C. Lei ◽  
Y. L. Miao ◽  
Q. Yao ◽  
J. Tang
Keyword(s):  
Reaction Thermodynamics

The reverse water gas shift reaction: a process systems engineering perspective

2021 ◽  
Author(s):  
Miriam González-Castaño ◽  
Bogdan Dorneanu ◽  
Harvey Arellano-García
Keyword(s):  
Systems Engineering ◽  
Process Design ◽  
Process Intensification ◽  
Industrial Applications ◽  
Catalytic Systems ◽  
Process Systems ◽  
Reverse Water Gas Shift ◽  
Reaction Thermodynamics ◽  
Rwgs Reaction ◽  
Shift Reaction

RWGS reaction thermodynamics, mechanisms and kinetics. Process design and process intensification – from lab scale to industrial applications and CO2 value chains. Pathways for further improvement of catalytic systems, reactor and process design.

The reaction thermodynamics of hydrogen sulfide decomposition into hydrogen and diatomic sulfur

2015 ◽  
Vol 36 (3) ◽  
pp. 234-239 ◽  
Author(s):  
A.N. Startsev ◽  
N.N. Bulgakov ◽  
S. Ph. Ruzankin ◽  
O.V. Kruglyakova ◽  
E.A. Paukshtis
Keyword(s):  
Hydrogen Sulfide ◽  
Reaction Thermodynamics

scholarly journals Chemical ionization mass spectrometry (CIMS) may not measure all gas-phase sulfuric acid if base molecules are present

2010 ◽  
Vol 10 (12) ◽  
pp. 30539-30568
Author(s):  
T. Kurtén ◽  
T. Petäjä ◽  
J. Smith ◽  
I. K. Ortega ◽  
M. Sipilä ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Sulfuric Acid ◽  
Gas Phase ◽  
Chemical Ionization ◽  
Measurement Data ◽  
Ionization Mass Spectrometry ◽  
Chemical Ionization Mass Spectrometry ◽  
Ionization Mass ◽  
Proton Affinities ◽  
Reaction Thermodynamics

Abstract. The state-of-the art method for measuring atmospheric gas-phase sulfuric acid is chemical ionization mass spectrometry (CIMS) based on nitrate reagent ions. Using computed proton affinities and reaction thermodynamics for the relevant charging reactions, we show that in the presence of strong bases such as amines, which tend to cluster with the sulfuric acid molecules, a significant fraction of the total gas-phase sulfuric acid may not be measured by a CIMS instrument. If this is the case, this effect has to be taken into account in the interpretation of atmospheric sulfuric acid measurement data, as well as in intercomparison of different CIMS instruments, which likely have different susceptibilities to amine-sulfuric acid clustering.

Reaction thermodynamics of hydrocarbons with nickel(100)

Langmuir ◽  
1988 ◽  
Vol 4 (3) ◽  
pp. 526-532 ◽  
Author(s):  
Gregory R. Schoofs ◽  
Jay B. Benziger
Keyword(s):  
Reaction Thermodynamics

scholarly journals Effect of the MgO/Silica Fume Ratio on the Reaction Process of the MgO–SiO2–H2O System

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 80 ◽  
Author(s):  
Zhaoheng Li ◽  
Yudong Xu ◽  
Hao Liu ◽  
Jianwei Zhang ◽  
Jiangxiong Wei ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Silica Fume ◽  
Main Product ◽  
Magnesium Silicate ◽  
Reaction Process ◽  
Reaction Products ◽  
Degree Of Reaction ◽  
Reaction Thermodynamics ◽  
Experimental Values ◽  
Kinetics Of

In order to clarify the effect of the MgO–silica fume (SF) ratio on the reaction process of the MgO–SiO2–H2O system, the reaction products and degree of reaction were characterized. Furthermore, the parameters of the reaction thermodynamics were calculated and the reaction kinetics were deduced. The results indicate that a large amount of Mg(OH)2 and small quantities of magnesium silicate hydrate (M–S–H) gels were generated upon dissolution of MgO. However, the M–S–H gels were continuously generated until the SF or Mg(OH)2 was consumed completely. For a MgO dosage less than 50% of the total MgO–SiO2–H2O system, the main product was M–S–H gel, while for a MgO dosage greater than 50%, the main product was Mg(OH)2. The results indicate that M–S–H gels have greater stability than Mg(OH)2, and the final reaction product was prone to be M–S–H gels. Based on the experimental values, an equation is proposed for the reaction kinetics of MgO.

scholarly journals The Reaction Thermodynamics during Plating Al on Graphene Process

Materials ◽  
2019 ◽  
Vol 12 (2) ◽  
pp. 330 ◽  
Author(s):  
Zhanyong Zhao ◽  
Peikang Bai ◽  
Liang Li ◽  
Jing Li ◽  
Liyun Wu ◽  
...  
Keyword(s):  
Free Energy ◽  
Gibbs Free Energy ◽  
Chemical Reduction ◽  
Enthalpy Change ◽  
Reaction Process ◽  
Endothermic Reaction ◽  
Graphene Surface ◽  
Second Stage ◽  
Reaction Thermodynamics ◽  
Two Stages

This research explored a novel chemical reduction of organic aluminum for plating Al on a graphene surface. The thermodynamics of the Al plating reaction process were studied. The Al plating process consisted of two stages: the first was to prepare (C2H5)3Al. In this reaction, the ΔH(enthalpy) was 10.64 kcal/mol, the ΔG(Gibbs free energy) was 19.87 kcal/mol and the ΔS(entropy) was 30.9 cal/(mol·K); this was an endothermic reaction. In the second stage, the (C2H5)3Al decomposed into Al atoms, which were gradually deposited on the surface of the graphene and the Al plating formed. At 298.15 K, the ΔH was −20.21 kcal/mol, the ΔG was −54.822 kcal/mol, the ΔS was 116.08 cal/(mol·K) and the enthalpy change was negative, thus indicating an endothermic reaction.

Interface Reaction Thermodynamics of AgCuTi Brazing Filler Metal and Alumina Ceramic

2014 ◽  
Vol 936 ◽  
pp. 1239-1246
Author(s):  
Hong Long Ning ◽  
Lin Feng Lan ◽  
Lei Wang ◽  
Jun Biao Peng ◽  
Zhi Jian Peng ◽  
...  
Keyword(s):  
Filler Metal ◽  
Interface Reaction ◽  
Liquid Solution ◽  
Product Formation ◽  
Influential Factor ◽  
Free Energies ◽  
The Real ◽  
Interface Reactions ◽  
Thermodynamics And Kinetics ◽  
Reaction Thermodynamics

In this work, the interface reaction between Al2O3 ceramic and Ag70.5Cu27.5Ti2 brazing filler metal at 845-860°C was investigated. Based on the data of thermodynamics and kinetics, the Gibbs free energies of the main interface reactions in the real brazing system condition were calculated. But the values of normal equilibrium reaction condition and the real interface reaction brazing system were different; and the main influential factor was the brazing temperature, and the system vacuum of brazing condition can lead the change of equilibrium constant (Kα). The results revealed that the high temperature and vacuum active brazing is a non-equilibrium interface reaction especially to titanium alloy, the vacuum and alloy liquid solution are beneficial to the brazing process, and the by-product formation of titanium-oxygen are affected by the diffusion process.

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