These are mostly business-to-business activities, often outside public eyes. We specialize on activities that involve chemical and biochemical changes on a large scale. For example, we purify crude oil into petrol, kerosene and diesel that transport everyone around. We too make plastics and their biodegradable versions.
Others such as fertilizers, drinking water, cooking oils, packaged foods, medicines and vaccines all have to be produced in large amounts, and here chemical engineers come in. The chips that run our handphones are designed by electronic engineers, but chemical engineers make them in large quantities. Increasingly, chemical engineers deal with living things such as bacteria and plants to produce renewable products. As large scale chemical processing involves potential adverse social and environmental impact, chemical engineers also protect people and Earth by clever designs and responsible operations.