Alírio Rodrigues is a Portuguese chemical engineer. He is emeritus Professor of Chemical Engineering at Universidade do Porto and Director of the Laboratory of Separation and Reaction Engineering.

His research interests are in the fields of chemical engineering, bioengineering and materials engineering. He is the author of over 600 articles on catalysis and reaction engineering, a number of books, and of six patents. He is among the most cited chemical engineers according to the Shanghai Academic Ranking of World Universities ^[1] He is on the Editorial Board^[2] of Chemical Engineering Journal. The press has been interested in his research on perfumed clothing. ^[3]

Rodrigues equation

The Rodrigues equation is an extension of the Van Deemter equation used to describe the efficiency of a bed of permeable (large-pore) particles.^[4]

The equation is:

${\displaystyle HETP=A+{\frac {B}{u}}+C\cdot f(\lambda )\cdot u}$

where HETP is the height equivalent theoretical plate

${\displaystyle f(\lambda )={\frac {3}{\lambda }}\left[{\frac {1}{\tanh(\lambda )}}-{\frac {1}{\lambda }}\right]}$

and ${\displaystyle \lambda }$ is the intraparticular Péclet number.

Bibliography

• Perfume Engineering: Design, Performance and Classification, (2013) Butterworth-Heinemann ; ISBN 978-0080993997
• Simulated Moving Bed Technology, (2015) Butterworth-Heinemann ISBN 9780128020241

References

External links

• Alírio Rodrigues' publications
• Alírio Rodrigues' page at the Laboratory of Separation and Reaction Engineering, University of Porto