Richard E. Treybal

Richard E. Treybal was a prominent chemical engineer and educator known for his contributions to mass transfer and separation process engineering. His most influential work is the textbook *Mass-Transfer Operations*, widely regarded as a standard reference in chemical engineering education. Treybal's research and teachings helped advance the understanding of how substances separate and move within chemical processes, crucial for designing efficient industrial systems such as distillation, absorption, and extraction. His work has had a lasting impact on chemical engineering practices, making complex separation operations more understandable and manageable for students and professionals alike.