Chemical engineering is a branch of engineering that applies physical sciences (physics and chemistry) and life sciences (microbiology and biochemistry) together with applied mathematics and economics to produce, transform, transport, and properly use chemicals, materials and energy. Essentially, chemical engineers design large-scale processes that convert chemicals, raw materials, living cells, microorganisms and energy into useful forms and products.
Chemical Engineering has been practiced since 300 B.C., in handling great Roman road building projects. It transforms substances at very large scale to upgrade the human condition. It also influences many areas of technology that depend on the processing of chemicals and materials. The end products of Chemical Engineering produce energy or useful substances that are used in wide segments of petroleum, electronic and pharmaceutical industries. Moreover, the processes convert oil-based feedstocks to make chemical products that are used in fibers of clothing, fertilizers, and lubricants. It manages the power plant conditions to ensure that plant operations are done optimally.