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Kinetics and Reactor Design Quiz Screencasts

Choose from the list of screencasts below. Each screencast has at least one interactive quiz during the video. The description above each video provides a brief summary.

Description: Explains how the apparent activation energy for a catalytic reaction depends on the surface reaction activation energy and the heats of adsorption of reactants.

Description: Describes why batch reactors are used, their scale up capabilities, and presents mole balances for the reactor.

Description: Describes the reasons for using a CSTR, presents the mass balances and discusses the unique aspects of CSTRs.

Description: Setup of energy balances for stirred tank reactors. Comparisons are made with batch and semi-batch reactors.

Description: Apply the 1st law to a semibatch reactor for a fast reaction, so the conversion is limited by thermodynamics. Demonstrates how the heat of reaction appears from an energy balance.

Description: Demonstrates how the Euler method is used to solve ordinary differential equations (ODEs).

Description: Describes how to use the Ergun equation to calculate the pressure drop in a packed bed.

Description: Explains the terms in the energy balance for steady-state plug flow reactors.

Description: Explains terms in the unsteady-state energy balance for stirred tank reactors and shows the energy balances for batch, semibatch, and steady-state CSTRs.

Description: Derives the kinetic rate expression for the catalytic reaction A + B to products, where surface reaction is assumed to be the rate-determining step. Langmuir isotherms are used to model adsorption of A and B, and the products are assumed to be weakly adsorbed.

Description: Derives the mole balance for a plug flow reactor (PFR) and describes how to account for changes in volumetric flow rates with distance down the PFR.

Description: Presents the mass and energy balances for a steady-state CSTR in which a reversible reaction takes place. The equations are plotted (product concentration vs. temperature) with an interactive Mathematica demonstration and the effects of changing feed temperature, heat transfer coefficient, and reverse rate constant are presented.

Description: Explain multiple steady states and how they arise for a CSTR operating at steady state.

Description: Explain multiple steady states and how they arise for a CSTR operating at steady state, part 2.

Description: Analyzes a continuous stirred tank reactor in terms of heat generated and heat removed to predict which solutions to the mass and energy balances are stable.

Description: Introduction to setting up the general energy balance for a plug flow reactor (PFR).

Description: A brief overview of plug flow reactors, their properties, equations, and uses.

Description: Demonstrates how sensitive the temperature profile in a plug flow reactor with heat transfer is to the inlet temperature and activation energy used in the reactor model.

Description: Solves mass balances for a tracer injected into the first CSTR in a series to determine the residence time distribution (RTD) for CSTRs in series.

Description: Show plots of the residence time distribution for CSTRs in series. Note that tau in these equations is the volume of each CSTR divided by the volumetric flow rate.

Description: Describes the effects of concentration, temperature, catalyst, and reactor type on selectivity for parallel reactions.

Description: Describes the effect of reaction time on selectivity for a series reaction.

Description: Overview of situations where the semibatch reactor has advantages over other types of reactors. The mole balance for the reactor is briefly presented.

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