Tag Archives: www.ChemEComp.com

Introduction to Chemical Engineering

September 7, 2013 I have been updating the material on use of Aspen Plus to include version 8.0-8.2. The way you get to the various windows is somewhat different, although most of the operating windows look very similar. Thus, some … Continue reading

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Chemical Reactor with Mass Transfer Limitations – in Comsol

In chemical reactors with a catalyst, sometimes the rate of reaction is governed by the concentration on/in the catalyst, which can be different from the concentration in the bulk fluid. This happens when the rate of mass transfer is not … Continue reading

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System Mass Balances in Excel

I’ve added some more material to the web site – solving mass balances for processes with recycle streams, using Comsol. In process simulators, one usually solves the equations by taking the input to a unit, solving that unit, taking the … Continue reading

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For Beginners with Comsol and with Excel

If you are a new user of Comsol Multiphysics, there is a nifty way to work through the first example in the book. A pdf version of the first example in Chapter 9 (heat conduction) is available at http://www.ChemEComp.com. You … Continue reading

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