Fieldbus technologies have become increasingly popular in process control applications. This article highlights the practical applications and economics of various buses, so that an engineer can choose the best one for his or her process.
Although the sparsity of effects principle is still good advice, we need to be careful of emphasizing it too much -- to the point that it becomes an assumed practice, rather than a useful rule of thumb.
Ionic liquids have already moved into the commercial arena as reaction solvents. This article compares them to conventional solvents and examines their potential for the extraction of benzene, toluene and xylene from reformate.
Emil Abkar, Henry Z. Kister, Jeffrey Scherffius, Khashayar Afshar
Generalized pressure-drop correlation (GPDC) charts have been the standard for predicting packing flood points and pressure drops. This article guides engineers on the correct and incorrect uses of the GPDC interpolation procedure, and updates the...
John W. Carson, K. Eric Bengtson, Thomas G. Troxel
A sound theoretical model of the process to be scaled is the best approach; if one is not available, bench-scale testing, physical scale modeling or full-scale modeling is required. Here are guidelines as to which method is appropriate for various...
Understanding when and why mixing fails in the laboratory is often the only way of avoiding a similar failure in a production-scale reactor. Here we examine mixing in stirred-tank reactors and provide guidance on scale-up.