化学工程是一门工程学科，其重点是在生产规模上将原材料转换为有价值的化学品和产品的过程的科学和工程学。这些产品包括日常生活中使用的产品，例如运输和供暖燃料，塑料，药品，家用和纸制品（肥皂，化妆品，保健和清洁产品等），以及更高级的产品，例如太阳能电池，计算机芯片，以及用于喷气飞机的先进复合材料。化学工程师在纸浆和造纸制造和石油精炼等传统化学工业，半导体设备制造，生物制药，航空航天和新兴工业等高科技行业找到工作，尤其是在可持续能源领域。
Chemical engineering is the engineering discipline that focuses on the science and engineering of processes to convert raw materials into valued chemicals and products at a manufacturing scale. These include products found in everyday life such as transportation and heating fuels, plastics, pharmaceuticals, household and paper products (soaps, cosmetics, health care and cleaning products, etc.), as well as more advanced products like solar cells, computer chips, and advanced composites for jet aircraft. Chemical engineers find employment in traditional chemical industries such as pulp and paper manufacturing and petroleum refining, high-tech industries such as semiconductor device manufacturing, biopharmaceutical production, aerospace, and emerging industries, particularly in sustainable energy.