Publication

Application of non-stationary and periodic processes in the study of heterogeneous catalytic kinetics

Albert Renken
1989
Book Chapters

Abstract

The use of transient methods to discriminate heterogeneous catalytic models was demonstrated for the catalytic epoxidn. of C2H4 on Ag and for the catalytic acetoxylation of C2H4 to vinyl acetate on a Pd catalyst. In sep. expts. the sorption kinetics on the carrier and the Pd catalyst were detd. and used to describe the dynamic behavior of the reactor. The proposed kinetic models described quant. both steady-state and the dynamic behavior of the reaction. [on SciFinder (R)]

Official source

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

Albert Renken
1989
Book Chapters

Abstract

Official source

Related concepts (19)

Heterogeneous catalysis

Heterogeneous catalysis is catalysis where the phase of catalysts differs from that of the reactants or products. The process contrasts with homogeneous catalysis where the reactants, products and catalyst exist in the same phase. Phase distinguishes between not only solid, liquid, and gas components, but also immiscible mixtures (e.g. oil and water), or anywhere an interface is present. Heterogeneous catalysis typically involves solid phase catalysts and gas phase reactants.

Chemical kinetics

Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics, which deals with the direction in which a reaction occurs but in itself tells nothing about its rate. Chemical kinetics includes investigations of how experimental conditions influence the speed of a chemical reaction and yield information about the reaction's mechanism and transition states, as well as the construction of mathematical models that also can describe the characteristics of a chemical reaction.

Steady state (chemistry)

In chemistry, a steady state is a situation in which all state variables are constant in spite of ongoing processes that strive to change them. For an entire system to be at steady state, i.e. for all state variables of a system to be constant, there must be a flow through the system (compare mass balance). A simple example of such a system is the case of a bathtub with the tap running but with the drain unplugged: after a certain time, the water flows in and out at the same rate, so the water level (the state variable Volume) stabilizes and the system is in a steady state.

Related publications (18)

Application of non-stationary and periodic processes in the study of heterogeneous catalytic kinetics

Chat with Graph Search

Modular Synthetic Platform Unlocks Broadly Tunable Cyclopentadienyl Scaffolds for Asymmetric Catalysis

Nanoengineering and Fundamental Insights into Solid-Liquid Interfaces toward Sustainable Energy Applications

Predictions of transient pressure pulsations in a pump-turbine from measurements for enhanced flexible operations