化学工学
Chemical engineering is the processing of raw materials into chemical products. It involves preparation of raw materials to produce reactants, the chemical reaction of these reactants under controlled conditions, the separation of products, the recycle of byproducts, and the disposal of wastes. Each step involves certain basic building blocks called “unit operations,” such as extraction, filtration, and distillation. These unit operations are found in all chemical processes. Biomolecular engineering is a subset of Chemical Engineering that applies these same principles to the processing of chemical substances made by living organisms.