化学工程利用化学，数学，生物学和物理学来提供一种综合的方法，以理解从分子到全局规模的过程中发生的变化，并创建可以改变化学或物理组成，能量含量，结构或物理的方法状态，即行动中的数学和科学。该主题还涉及将知识应用于处理化学及相关产品的工厂的设计，开发和运营。它与机械，电气和土木工程，化学，材料科学和生物学等领域接壤和重叠
Chemical Engineering uses chemistry, mathematics, biology and physics to provide an integrated approach to understanding the changes which take place in processes, from molecular to global scale, and to create methods which can change chemical or physical composition, energy content, structure, or physical state, ie mathematics and science in action. The subject also involves the application of knowledge to the design, development and operation of plants that process chemical and related products. It borders and overlaps on areas such as mechanical, electrical and civil engineering, chemistry, materials science and biology