DEHYDROGENATION PROCESS HAVING IMPROVED RUN TIME

A new/fresh catalyst is added to a dehydrogenation unit and aged catalyst is removed from the dehydrogenation unit on a continuous or semi-continuous basis while the dehydrogenation unit is in operation. The conversion achieved by the higher activity catalyst results in the production rate of olefin product being maintained at near start-of-run production for longer, with a slower rate of decline. The higher activity catalyst extends run time, reduces feed consumption for each unit of olefin product, and minimizes fresh catalyst expenses. 在脱氢单元运行的同时，连续或半连续地将新的/新鲜的催化剂加入到脱氢单元中，并且从脱氢单元中移除老化催化剂。通过较高活性的催化剂实现的转化导致烯烃产物的生产率在接近运行开始的生产中保持更长的时间，下降速率更慢。较高活性催化剂延长了运行时间，减少了每个单元的烯烃产物的进料消耗，并使新鲜催化剂的费用最小化。