Topic
Reaction rate
About: Reaction rate is a research topic. Over the lifetime, 28567 publications have been published within this topic receiving 688688 citations. The topic is also known as: speed of reaction & rate of reaction.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, the rates of reaction of the hydrides of tungsten and molybdenum of the form HM(η 5 -C 5 H 5 (CO) 3 with β-methylstyrene have been determined.
18 citations
TL;DR: In this paper, the activation parameters and rates have been interpreted in terms of the Marcus theory for gas phase ionic organic reactions, and the results provide information about bimolecular dynamics.
Abstract: Major advances have been made in the measurement and analysis of gas phase ionic organic reactions. The dynamics can be interpreted in terms of statistical reaction rate theory. The activation parameters and rates have been interpreted in terms of Marcus theory. Infrared multiple photon absorption has been used to activate ions which may be intermediates in these ion-molecule reactions. The results provide information about bimolecular dynamics.
18 citations
TL;DR: In this article, Orthogonal collocation was used to obtain an efficient iterative solution to the problem of the second-order EC-catalytic mechanism at the rotating disk electrode (RDE).
18 citations
TL;DR: In this paper, the effect of various parameters such as speed of agitation, catalyst particle size, molar ratio of n-hexanol to acetic acid, reaction temperature, catalyst loading, and reusability of catalysts was studied for optimization of the reaction condition.
Abstract: Esterification of dilute acetic acid with n-hexanol was studied with cation-exchange resins (macroporous and gelular) in a jacketed stirred batch reactor to synthesize a value-added ester, namely, n-hexyl acetate. The effect of various parameters such as speed of agitation, catalyst particle size, molar ratio of n-hexanol to acetic acid, reaction temperature, catalyst loading, and reusability of catalysts was studied for optimization of the reaction condition. The nonideality of each component in the reacting mixture was accounted for by using the activity coefficient via use of the UNIFAC group contribution method. The kinetic data were correlated with both pseudo-homogeneous (PH) and adsorption-based reaction rate models, e.g., Eley-Rideal (ER), Langmuir-Hinshelwood-Hougen-Watson (LHHW), and the modified LHHW (ML). Residue curve maps (RCM) were experimentally generated under different conditions to elucidate the feasibility of n-hexyl acetate synthesis in a reactive distillation column (RDC).
18 citations
TL;DR: In this paper, it was shown that dilution with helium (and perhaps other inert gases) may be a new way to control SCWO reaction rates, and experiments consistently revealed that adding helium, and thereby decreasing the water concentration at a fixed system pressure, increased the phenol conversion.
Abstract: Supercritical water oxidation (SCWO) experiments were performed in a tubular flow reactor at 420–465°C and 141–241 bar. Phenol was the organic reactant. Both pure water and a helium (1/3 by mol)–water mixture served as reaction media. Adding helium to the reaction medium permitted variation of the water concentration and system pressure independently. By decoupling the water concentration from the system pressure, it was shown that the rate of phenol disappearance during SCWO is influenced by the water concentration and not the system pressure. The experiments consistently revealed that adding helium, and thereby decreasing the water concentration at a fixed system pressure, increased the phenol conversion. In addition, experiments showed that lowering the water concentration using pure water as the solvent also increased the phenol conversion. The results suggest that dilution with helium (and perhaps other inert gases) may be a new way to control SCWO reaction rates.
18 citations