Results 291 to 300 of about 1,922,304 (342)

Reaction rate constant of methane clathrate formation

Fuel, 2010
Abstract Particle size distribution measurements were performed during the growth stage of methane hydrate formation in a semi-batch stirred tank crystallizer. Experiments were carried out at temperatures between 275.1 and 279.2 K and pressures ranging from 3873 to 5593 kPa. The reaction rate constant of methane hydrate formation was determined using
Sebastien Bergeron, Juan G. Beltrán, Phillip Servio   +2 more
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Reaction rate constant of propane hydrate formation

Fluid Phase Equilibria, 2008
Abstract Experimental data on the rate of formation of propane hydrates were obtained using a particle size analyzer capable of detecting particles with diameters as small as 0.6 nm, while operating in a closed loop system. Experiments were carried out at temperatures around 274 K and pressures between 315 and 340 kPa in a semi-batch stirred tank ...
Sebastien Bergeron, Phillip Servio
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Progress towards machine learning reaction rate constants

Physical Chemistry Chemical Physics, 2022
Current status and outlook on the use and development of machine learning algorithms to predict reaction rate constants.
Evan Komp, Nida Janulaitis, Stéphanie Valleau   +2 more
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Rate constants for silylene reactions

Research on Chemical Intermediates, 1990
It is only since 1985 that the absolute rate constanss have been measured for some reactions of divalent silylene species. In this article the absolute rate constant data reported to date for the reactions of SiH2, SiMe2, SiMePh, SiHCl, SiCl2, SiF2 and SiBr2 are reviewed and, where possible, mechanistic pathways discussed.
I. Safarik, V. Sandhu, E. M. Lown, O. P. Strausz, T. N. Bell   +4 more
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On reaction rate constants and rate kernels

Chemical Physics Letters, 1978
Abstract A simple model for a reversible isomerization reaction A ⇋ B is used to show how rate constants and their time-dependent generalizations can be related to microscopic reactive steps and nonreactive internal dynamics (e.g., vibrational relaxation).
Scott H. Northrup, James T. Hynes
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Rate Constants for Anilidyl Radical Cyclization Reactions

The Journal of Organic Chemistry, 2005
[reaction: see text] N-Aryl-5,5-diphenyl-4-pentenamidyl radicals (3) were produced by 266 nm laser-flash photolysis of the corresponding N-(phenylthio) derivatives, and the rate constants for the cyclizations of these radicals were measured directly. The 5-exo cyclization reactions were fast (k(c) > 2 x 10(5) s(-1)), and radicals 3 generally behaved as
E, Martinez, M, Newcomb
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Reaction rates and reaction rate constant conception. One-temperature case

AIP Conference Proceedings, 2012
The new method of getting a normal solution for the generalized Boltzmann equation for reacting gas mixtures was proposed. It is based on the following items: (i) slow variables are introduced via approximate summational invariants, defined within the method, (ii) kinetic equations are presented in the form of a singularly perturbed system for gas ...
Evgeniy G. Kolesnichenko, Yuriy E. Gorbachev   +1 more
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