Prediction of reforming catalyst stability

Abstract

The authors demonstrate the feasibility of predicting reforming catalyst activity from the results of tests under mild conditions. The experiments were performed in pilot units with circulating hydrogen-rich gas. The authors determined the contents of aromatic and olefinic hydrocarbons in the reformate. The test time under mild conditions was 100-120 h. Typical results are presented of the timewise change in content of aromatic hydrocarbons and iodine number under mild and severe conditions. The difference between the contents of aromatic hydrocarbons in the reformates obtained 20 and 100 h from the start of tests under severe conditions were used as a measure of the catalyst stability.