The UOP ICR process involves several steps, including preheating, catalytic reforming, and product separation. Initially, the feedstock is preheated and mixed with hydrogen before entering the catalytic reforming reactors. Here, a series of reactions such as dehydrogenation, isomerization, and cyclization occur on the surface of the catalyst. The resulting high-octane reformate is then separated from the hydrogen-rich gas, which is recycled back into the system.