This reaction is particularly challenging because the catalyts are highly active and the reaction temperatures very high. Pulsation-free vaporizaion was realized without local depletion of H2 in the feed, which can otherwise result in coke formation. All of these challenges were met and with effort in our in-house testing laboratories could ultimately be met. The online GC analytics were seamlessly integrated and testing on actual catalysts from the client confirmed proper functioning of the unit in question.