iiSE simulator
A modern equation-oriented process simulator with advanced thermodynamics
Download Now
Download iiSE for academic or personal use (when you are neither directly nor indirectly paid)
Tutorials
Watch video tutorials and quickly learn how to use the iiSE simulator
Latest news
Parastillation columns
The energy consumption of distillation columns can be reduced by dividing the vapor phase inside the column in different partitions. This technique is known as parastillation. In parastillation, the vapor flow is divided into at least two upward and parallel streams in the bottom of the column. These streams make…
Divided-Wall Columns (DWC)
Distillation columns is one of the most energy intensive equipment in chemical and petroleum industries. The separation of ternary mixtures usually is accomplished by the classical sequence of two distillation columns. Interestingly, according to Ling e Luyben (2009), the Divided-Wall Columns (DWC) can reduce the energy costs in up to…
New installation packages now available
New installation packages for Windows as well as Linux are now available. These packages are free for academic or personal use. Check this link to download.
Reducing energy requirements in distillation columns: vapor recompression
In the video below we show what vapor recompression (or heat pump) is. We also show how to simulate this process using the iiSE simulator. See that we do not need any ‘design-spec’ or ‘recicle’ block. This is one of the advantages of equation oriented simulators!
Understanding equation-oriented simulators
There are essentially two process simulator technologies: modular (sequential) and equation-oriented (simultaneous). In this video (in Portuguese) some of the advantages of the equation-oriented approach are shown for the iiSE simulator.
iiSE intro tutorial
The iiSE process simulator is an equation-based simulator. This leads to some differences in use, when compared to the classical sequential-modular simulators. With this short tutorial below you will learn how to build your first simulation with iiSE: