Chemical Engineering December 2019 - 21

face equipment failure due to corrosion
or erosion. The models can tell
us how to safely and efficiently run
the reaction without unwanted byproducts,
thermal runaways or hazardous
leaks " (Figure 2).
Sustainability. Simulation is also
being applied toward improving sustainability
throughout the plant, according
to the experts. " Simulators
have always been very good at modeling
the steps necessary to clean up
the process, allowing users to model
carbon capture, scrubbing of contaminants,
wastewater clean up and
other necessary processes, but companies
didn't use it, " says Paige Marie
Morse, industry marketing director,
chemicals, with AspenTech (Bedford,
Mass.: www.aspentech.com). " But
now that sustainability is becoming
a goal, people are considering things
like reducing energy use and greenhouse
gas emissions as important
metrics to watch and simulation can
help them examine different ways to
significantly reduce energy use and
greenhouse gas emissions and how
3452 BioN 7x4.875 ad_Layout 1 12/12/18 10:16 AM Page 1
doing so will affect productivity and
profitability both for new processes
and existing ones " (Figure 3).
Olivier Baudouin, process manager
with ProSim (Labege, France; www.
prosim.net) agrees. " Different simulation
tools can be used to address a
variety of sustainability issues, including
energy use and water treatment, "
he says. " For example, our Pinch
Analysis can be used to optimize the
thermal power consumption and,
coupled with our Exergy Analysis,
improve the energy efficiency of a
process. And, our Water Pinch analysis
module can be integrated into
simulation software to reduce water
consumption and wastewater generation,
linked with useful unit operation
models for water treatment,
such as ultra-filtration, nano-filtration
and reverse osmosis. Of course, at
the end, the profitability of the plant
will lead to the selection of the technological
choices, thus a powerful
economic evaluation module has to
be available in simulation software,
allowing users to find the balance
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DECEMBER 2019
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Chemical Engineering December 2019

Table of Contents for the Digital Edition of Chemical Engineering December 2019
