Chemical Engineering is the branch of engineering that deals with the application of science (eg chemistry and physics), and life sciences (eg biology, microbiology and biochemistry) in mathematics, the process of converting raw materials or chemicals in more useful or valuable forms. In addition to producing useful materials, modern chemical engineering is also concerned with pioneering valuable new materials and techniques - such as nanotechnology, biomedical technology and fuel cells. [1] Chemical engineering largely involves the design, maintenance and improvement of processes with chemical or biological transformations for large scale production. Chemical engineers ensure the processes are safely operated, and economically sustainable. Chemical engineers in this industry are generally employed under the title of process engineer. A related term with a broader definition is chemical engineering. An employee in this area is called a chemical engineer.