scholarly journals Kinetics of the direct DME synthesis from CO2 rich syngas under variation of the CZA-to-γ-Al2O3 ratio of a mixed catalyst bed

RSC Advances ◽  
2021 ◽  
Vol 11 (40) ◽  
pp. 24556-24569
Author(s):  
Nirvana Delgado Otalvaro ◽  
Gerardo Sogne ◽  
Karla Herrera Delgado ◽  
Stefan Wild ◽  
Stephan Pitter ◽  
...  
Keyword(s):  
Predictive Models ◽  
Dme Synthesis ◽  
System P ◽  
Mixed Catalyst ◽  
Kinetic Investigations ◽  
Kinetics Of

Experimental and numerical kinetic investigations for the direct DME synthesis resulted in one of the predictive models with the broadest range of validity in the open literature for the CZA/γ-Al2O3 system.

Effect of ionizing radiation on the kinetics of hydrogenation on the Ni-MgO mixed catalyst

1982 ◽  
Vol 47 (7) ◽  
pp. 1780-1786 ◽  
Author(s):  
Rostislav Kudláček ◽  
Jan Lokoč
Keyword(s):  
Experimental Data ◽  
Activation Energy ◽  
Liquid Phase ◽  
Ionizing Radiation ◽  
Oxide Catalyst ◽  
Absorbed Dose ◽  
Hydrogenation Rate ◽  
Solution Composition ◽  
Mixed Catalyst ◽  
Kinetics Of

The effect of gamma pre-irradiation of the mixed nickel-magnesium oxide catalyst on the kinetics of hydrogenation of maleic acid in the liquid phase has been studied. The changes of the hydrogenation rate are compared with the changes of the adsorbed amount of the acid and with the changes of the solution composition, activation energy, and absorbed dose of the ionizing radiation. From this comparison and from the interpretation of the experimental data it can be deduced that two types of centers can be distinguished on the surface of the catalyst under study, namely the sorption centres for the acid and hydrogen and the reaction centres.

Adhesion of Fine Particles at Solid/Solution Interfaces

MRS Bulletin ◽  
1990 ◽  
Vol 15 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Nikola Kallay
Keyword(s):  
Fine Particles ◽  
Plane Surface ◽  
Solid Surfaces ◽  
Liquid Media ◽  
Latex Dispersions ◽  
Colloid Particles ◽  
The Subject ◽  
Kinetic Investigations ◽  
The Stability ◽  
Kinetics Of

The adhesion of particles at solid surfaces in liquid media has attracted the attention of scientists because of its various applications as well as the theoretical significance of the processes involved. Early studies were characterized either by poorly defined systems or limited by the properties of a few morphologically well-defined model colloids, such as latex dispersions. Consequently, results were either of semiquantitative nature or were related to some specific cases, which eluded general conclusions. New methods for preparing uniform particles of different compositions, shapes, and sizes make it possible to approach the problem in a more comprehensive manner. For example, to demonstrate difficulties caused by polydispersity, it is sufficient to mention that the electrostatic interaction energy between a plane surface and a particle is approximately proportional to the particle radius, yet the rate of deposition depends exponentially on the height of the energy barrier.In principle, static and dynamic approaches may be employed in the study of particle adhesion. The static method yields the force required to detach an adhered particle, while kinetic investigations of attachment and detachment give the rates of the respective processes. Both methods offer information on the stability of the system in terms of the bond strength of adhered solids. For small colloid particles, which are the subject of thermal random Brownian motion, the dynamic approach is more appropriate. This article emphasizes the kinetics of deposition and detachment of small colloid particles in liquid media.

Kinetic investigations of Cl atom initiated photo-oxidation reactions of cyclic unsaturated hydrocarbons in the gas phase: an experimental and theoretical study

2017 ◽  
Vol 41 (15) ◽  
pp. 7491-7505 ◽  
Author(s):  
S. Vijayakumar ◽  
C. B. Ramya ◽  
Avinash Kumar ◽  
B. Rajakumar
Keyword(s):  
Gas Phase ◽  
Oxidation Kinetics ◽  
Theoretical Study ◽  
Oxidation Reactions ◽  
Unsaturated Hydrocarbons ◽  
Photo Oxidation ◽  
Kinetic Investigations ◽  
Kinetics Of ◽  
Cl Atom

Cl atom initiated photo oxidation kinetics of cyclohexene and cycloheptene.

The effect of Sr(OH)2 on the hydrogen storage properties of the Mg(NH2)2–2LiH system

2017 ◽  
Vol 19 (12) ◽  
pp. 8457-8464 ◽  
Author(s):  
Hujun Cao ◽  
Han Wang ◽  
Claudio Pistidda ◽  
Chiara Milanese ◽  
Weijin Zhang ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Hydrogen Storage Properties ◽  
Thermodynamics And Kinetics ◽  
System P ◽  
Kinetics Of ◽  
Storage Properties

Sr(OH)2 influences both the thermodynamics and kinetics of the Mg(NH2)2–2LiH system, lowering the dehydrogenation onset and peak temperatures by ca. 70 °C and 13 °C.

Insight into the role of piperazine in the thermodynamics and nucleation kinetics of the triethylenediamine–methyl tertiary butyl ether system

CrystEngComm ◽  
2019 ◽  
Vol 21 (6) ◽  
pp. 948-956 ◽  
Author(s):  
Yufeng Quan ◽  
Yang Yang ◽  
Shijie Xu ◽  
Peipei Zhu ◽  
Shiyuan Liu ◽  
...  
Keyword(s):  
Crystal Size ◽  
Methyl Tertiary Butyl Ether ◽  
Nucleation Kinetics ◽  
Butyl Ether ◽  
Tertiary Butyl ◽  
System P ◽  
Kinetics Of ◽  
Insight Into ◽  
Ether System

Considering the role of piperazine in the TEDA–MTBE system, we investigate how to control the crystal size distribution.

Dynamics and reaction kinetics of coarse-grained bulk vitrimers: a molecular dynamics study

2019 ◽  
Vol 21 (24) ◽  
pp. 13258-13267 ◽  
Author(s):  
Jian-Bo Wu ◽  
Shu-Jia Li ◽  
Hong Liu ◽  
Hu-Jun Qian ◽  
Zhong-Yuan Lu
Keyword(s):  
Molecular Dynamics ◽  
Monte Carlo ◽  
Reaction Kinetics ◽  
Dynamic Behavior ◽  
Coarse Grained ◽  
Exchange Reactions ◽  
Dynamics Model ◽  
System P ◽  
Intrinsic Mechanism ◽  
Kinetics Of

We used the hybrid molecular dynamics–Monte Carlo (MD–MC) algorithm to establish a molecular dynamics model that can accurately reflect bond exchange reactions, and reveal the intrinsic mechanism of the dynamic behavior of the vitrimer system.

scholarly journals Measurement of reaction kinetics of [177Lu]Lu-DOTA-TATE using a microfluidic system

2017 ◽  
Vol 46 (42) ◽  
pp. 14669-14676 ◽  
Author(s):  
Z. Liu ◽  
K. S. Schaap ◽  
L. Ballemans ◽  
R. de Zanger ◽  
E. de Blois ◽  
...  
Keyword(s):  
Reaction Kinetics ◽  
Microfluidic System ◽  
Arrhenius Parameters ◽  
System P ◽  
Kinetics Of

Design and evaluation of a microfluidic system that allowed the determination of Arrhenius parameters for the formation of [177Lu]Lu-DOTA-TATE using clinical radiolabeling conditions.

Effects of ionic liquids on the reaction kinetics of a laccase–mediator system

RSC Advances ◽  
2014 ◽  
Vol 4 (33) ◽  
pp. 17097-17104 ◽  
Author(s):  
Nora Harwardt ◽  
Natascha Stripling ◽  
Simon Roth ◽  
Haifeng Liu ◽  
Ulrich Schwaneberg ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Reaction Kinetics ◽  
System P ◽  
Mediator System ◽  
Laccase Mediator System ◽  
Kinetics Of

Conductivity and viscosity explain part of the effect of ionic liquids on the laccase–mediator system kinetics, but not all.

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