Short answers, pulled from the story.
George E. Davis, an English consultant, is credited with coining the term "chemical engineering." Davis also attempted to found a Society of Chemical Engineering, which was instead established as the Society of Chemical Industry in 1881, with Davis as its first secretary.
A unit operation is a physical step in a chemical engineering process, such as crystallization, filtration, drying, or evaporation. A unit process involves the chemical conversion of materials through biochemical or thermochemical means, such as nitration, hydrogenation, or oxidation.
The 1974 Flixborough disaster in the United Kingdom killed 28 people, and the 1984 Bhopal disaster in India resulted in at least 4,000 deaths. Following these incidents, the IChemE required safety to be part of every accredited degree course after 1982, and the field developed process safety as a recognized discipline.
Chemical engineers may be accredited by the Institution of Chemical Engineers (IChemE) or the American Institute of Chemical Engineers (AIChE), among others. These bodies ultimately confer licensure and the title of Professional Engineer.
According to the U.S. Bureau of Labor Statistics, the occupational outlook for chemical engineers between 2024 and 2034 was 3% growth.
Advancements in biochemical engineering in the 1940s found application in the pharmaceutical industry, enabling the mass production of antibiotics including penicillin and streptomycin.