Attainable Region Theory

Attainable Region (AR) theory is a branch of chemical reaction engineering that incorporates elements of convex geometry to understand how best chemical reactor networks—termed reactor structures—should be designed.

AR theory is unique in that it is geometric in nature. It is particularly useful for understanding chemical reactions involving many competing reactions and species, called complex reactions.

Learn AR theory


Visit the Examples section for a more detailed description of AR theory, and how it works.


Visit the Downloads section for companion software and interactive worked examples (which are written in Python). All files are hosted on Github .