In static mixers, also called motionless or in-line mixers, a fluid is pumped through a pipe containing stationary blades. This mixing technique is particularly well suited for laminar flow mixing because it generates only small pressure...
One of the most common reactors in the chemical industry, for use in heterogeneous catalytic processes, is the packed bed reactor. This type of reactor is used both in synthesis as well as in effluent treatment and catalytic...
This example was originally formulated by Albert Witarsa under Professor Bruce Finlayson’s supervision at the University of Washington in Seattle. It was part of a graduate course in which the assignment consisted of evaluating the...
As reactant monomer converts into polymer chains, the density of the reacting mixture often changes notably. In this example you will look at how this effect impacts the total production of polymer in a process. The liquid phase...
This example uses algebraic equilibrium relations to model the time-dependent adsorption of proteins to an ion-exchange medium. The fluid phase contains three components: two proteins and one salt. The adsorption/desorption kinetics...
Chemical vapor deposition (CVD) allows a thin film to be grown on a substrate through molecules and molecular fragments adsorbing and reacting on a surface. This example illustrates the modeling of such a CVD reactor where...
A flow cell in a biosensor contains an array of micropillars. The curved side of the pillars are coated with an active material that allows for the selective adsorption of analyte species in the sample stream. The adsorbed species produce...
Miniature laboratories are required to efficiently analyze the information in the human DNA. One of the problems that arise in these lab-on-chip devices is in the transport of the liquid samples and other solutions in the chip, which are...
Thermal dispersion in a porous medium results from the combined effects of heat conduction in the fluid and solid phases, and from convective transport in the fluid. In chemical process engineering, the modeling of thermal dispersion is...
In the simplest terms, High Performance Liquid Chromatography (HPLC) is a separation technology - a process used to separate different chemical species that are in a mixture. And while HPLC is one of many separation technologies...
