Tuesday, August 14, 2012
Chemical Engineering
Chemical Engineering
Chemical engineering is the branch of engineering deals with physical science (chemistry, physics) and life science (biology, microbiology, and biochemistry) with mathematics and economics, to the process of convering "raw materials" or "raw chemicals" into more useful or valuable forms.
In addition, modern chemical engineers are also concerned with pioneering valuable new materials and related techniques, which are often essential to related fields such as "nanotechnology", "fuel cells", and "biomedical engineering."
Within chemical engineering, two broad subgroups include :
- Design, manufacture, and operation of plants and machinery in industrial chemical and related processes (Chemical Process Engineers)
- Development of new or adapted substances for products ranging from foods and beverages to cosmetics to cleaners to pharmaceutical indregients, among many other products (Chemical Product Engineers)
- Unit Operations, is a step in manufacturing in which chemical reation did not taking place. (evaporation, filtration, absorption, etc)
- Unit Processes, is a step in manufacturing in which chemical reaction takes place (oxidation, hydrogenation, etc)
Chemical engineering involves the application of several principles (Chemical Engineering Tools) :
- Material Balance
- Energy Balance
- Equilibrium & Thermodynamics
- Transport Phenomena (Mass Transfer, Momentum Transfer, and Heat Transfer)
- Chemical Kinetics (Chemical Reaction Engineering)
- Economics (Process Design & Plant Design)
- Humanity & Ethics
Applications and Practices
Chemical engineers "developed economic ways of using material and energy" as opposed to chemist who are more interested in the basic composition of materials and synthesizing products. Chemical engineers use chemistry and engineering to turn raw materials into usable produts, such as medicine, petrochemicals, and plastics. They are also involed in waste management and research.
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