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Understanding the Software Options

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Solids Environmental Processing Manager<br />

Practice Green<br />

Chemical Engineering<br />

Chemical engineers have countless opportunities<br />

to apply <strong>the</strong>ir talents to environmentally related improvements,<br />

specifically in R&D, plant design and operations<br />

C. Delia Contreras<br />

and Fabio Bravo<br />

Specialists in plant design<br />

and operation<br />

Almost by definition, chemical engineering<br />

is a “green” discipline<br />

today, as it so often involves efforts<br />

to optimize chemical processes<br />

in order to reduce <strong>the</strong> amount of<br />

energy and raw materials that are used<br />

and <strong>the</strong> amount of waste that is generated.<br />

Today everybody “talks green” but<br />

in a lot of cases engineers are <strong>the</strong> most<br />

qualified people to provide <strong>the</strong> tools required<br />

to make complex chemical processes<br />

more environmentally sustainable.<br />

In fact, many types of engineers — but<br />

chemical engineers, in particular — are<br />

in an ideal position to develop solutions<br />

for some of today’s most important problems,<br />

including all types of air pollution,<br />

CO 2 emissions, carbon capture and storage,<br />

improved renewable energy sources,<br />

improved food production, sustainable<br />

water supply and wastewater treatment,<br />

quick and economic mass production of<br />

vaccines and drugs, complex issues related<br />

to global warming 1 and so on.<br />

1. It is understood that <strong>the</strong> concept of global<br />

warming is not universally accepted and this<br />

article does not intend to address ei<strong>the</strong>r side of<br />

that argument.<br />

If not properly addressed, <strong>the</strong>se issues<br />

will become even more critical, as<br />

economic growth and demographic expansion<br />

invariably leads to increased<br />

consumption of fuel and natural<br />

resources and to increased production<br />

of waste streams. “Being green”<br />

has always been part of <strong>the</strong><br />

chemical engineering profession —<br />

although in <strong>the</strong> past, such activities<br />

were not necessarily called green<br />

or sustainable.<br />

So-called “green practices” are often<br />

considered to be expensive or unaffordable,<br />

prompting some process<br />

operators to do just what is required<br />

to comply with <strong>the</strong> minimum legal<br />

requirements. This type of thinking<br />

is not only outdated but shortsighted,<br />

as well. Today, it is increasingly recognized<br />

that green practices and<br />

economic profits are related. Technically<br />

strong and innovative teams are<br />

needed to capitalize on <strong>the</strong> opportunities<br />

to link environmentally related<br />

activities with bottom-line profitability.<br />

Today, it’s widely recognized that<br />

improvements such as reduction of energy<br />

and raw material consumption,<br />

minimization of waste production and<br />

increased process yields are critical to<br />

increase a facility’s overall economic<br />

profitability. There are tremendous<br />

opportunities for technically strong<br />

and innovative chemical engineers to<br />

bring <strong>the</strong>ir expertise and ingenuity to<br />

bear in green endeavors, in chemical<br />

engineering roles ranging from R&D<br />

to process design and operation. A<br />

key driver for becoming greener has<br />

to do with <strong>the</strong> so-called “three key<br />

Ps”: planet, people and profits. This<br />

article discusses some of <strong>the</strong> opportunities<br />

that are available for chemical<br />

engineers to lead <strong>the</strong> charge in<br />

green engineering.<br />

Why green?<br />

Being green is about taking care of <strong>the</strong><br />

planet, which is in <strong>the</strong> best interest of<br />

every person regardless of profession.<br />

But, considering <strong>the</strong> special training<br />

that chemical engineers receive, it is<br />

especially applicable to members of<br />

our profession. Today, no company has<br />

much choice when it comes to taking<br />

care of <strong>the</strong> environment or investigating<br />

ways to operate in a more environmentally<br />

sustainable way.<br />

It is not only a matter of compliance<br />

with regulations but a matter of responding<br />

to <strong>the</strong> demands and expectations<br />

of customers, employees, com-<br />

CHEMICAL ENGINEERING WWW.CHE.COM AUGUST 2011 41

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