PROCESS AND APPARATUS FOR INDIRECT CATALYST HEATING IN A REGENERATOR

摘要

A process and apparatus for heating catalyst is presented. Cooler catalyst is removed from a reactor and heated with a hot gas in a riser, heated in a heating tube or heated in a heating chamber. Heated catalyst is disengaged from the hot gas if necessary and returned to the reactor. The process and apparatus can be used for producing light olefins. The hot gas may be a flue gas from an FCC regenerator or a combustion gas from a heater.

主权项

1. A reactor apparatus comprising:
a reactor vessel comprising a feed inlet, a catalyst inlet to the reactor vessel and a catalyst outlet in the reactor vessel; a catalyst outlet conduit in direct communication with the catalyst outlet; a heating tube in downstream communication with said catalyst outlet conduit, said heating tube positioned in a catalyst regenerator; and the catalyst inlet in downstream communication with said heating tube.