History of chemical engineering

The development of chemical engineering as a discipline, profession, and industrial practice, from industrial process management to modern chemical and biological technologies.

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Unit operations: A framework that classifies industrial processes by recurring physical operations such as distillation and filtration. Its rise marked the first general method for teaching diverse chemical industries together.
George E. Davis: A British chemical engineer whose 1887 lectures helped establish chemical engineering as a distinct profession. His lectures are an early landmark in defining chemical engineering as a separate field.
Haber process: An industrial method for synthesizing ammonia from nitrogen and hydrogen, developed in the early twentieth century. Ammonia production showcased the field's role in scaling high-pressure chemistry.
Mass production: The manufacture of standardized goods in large quantities using specialized equipment and organized workflows. Chemical engineers helped make continuous, large-scale production reliable across many industries.
Transport phenomena: The study of momentum, heat, and mass transfer in physical systems. A shared theory of transport replaced lists of operations with transferable engineering principles.
Arthur D. Little: An American chemist and consultant who helped develop the modern conception of chemical engineering. His process-centered perspective influenced how the profession described its distinctive expertise.
Petroleum refining: The industrial conversion of crude oil into fuels, lubricants, and other products. Refining drove advances in large-scale separations, catalysis, and continuous processing.
Green chemistry: The design of chemical products and processes that reduce or eliminate hazardous substances and waste. Environmental pressures pushed the profession to prevent pollution at the process-design stage.
Chemical reactor: Equipment in which chemical reactions are carried out under controlled conditions. Reactor design became a central task as the discipline moved toward quantitative process analysis.
William H. Walker: An American chemical engineer and educator who helped shape chemical engineering education at MIT. His teaching and textbooks helped establish a systematic academic curriculum.