DEHYDROGENATION REACTOR CATALYST COLLECTOR WITH HOT HYDROGEN STRIPPING ZONE

摘要

A process and apparatus is presented for the removal of sulfur from a catalyst. The catalyst is a dehydrogenation catalyst, and sulfur accumulates during the dehydrogenation process. The sulfur is removed before the catalyst is regenerated to prevent the formation of undesirable sulfur oxide compounds created during regeneration. The catalyst, during regeneration, includes redispersion of a metal on the catalyst, and removal of sulfur oxides overcomes the interference with chloride retention and metal redispersion in the regeneration process.

主权项

1. A process for the regeneration of spent catalyst comprising:
passing the spent catalyst to a catalyst transfer pipe, and passing a sulfur stripping gas through the catalyst transfer pipe, thereby creating a sulfur stripping zone to generate a sulfur stripped spent catalyst; and passing the sulfur stripped spent catalyst to a regenerator to create a regenerated catalyst stream.