Processes and systems for conversion of alkyl bromides to higher molecular weight hydrocarbons in circulating catalyst reactor-regenerator systems

摘要

Process and system that include the conversion of alkyl bromides to higher molecular weight hydrocarbons in circulating catalyst reactor-regenerator systems. Alkyl bromides may be reacted over a catalyst in at least one conversion reactor to produce at least an effluent stream comprising higher molecular weight hydrocarbons and hydrogen bromide. A portion of the catalyst may be removed from the conversion reactor. The portion of the catalyst may be contacted with a stripping gas to displace hydrocarbons from the portion of the catalyst. The portion of the catalyst may be contacted a first inert gas. The portion of the catalyst may be contacted with oxygen to form a regenerated catalyst by removal of coke. The regenerated catalyst may be contacted with a second inert gas. At least a portion of the regenerated catalyst may be introduced into the conversion reactor.

主权项

1. A process comprising:
reacting at least alkyl bromides over a catalyst in at least one conversion reactor to produce at least an effluent stream comprising higher molecular weight hydrocarbons and hydrogen bromide; removing a portion of the catalyst from the conversion reactor; contacting the portion of the catalyst with a stripping gas to displace hydrocarbons from the portion of the catalyst; contacting the portion of the catalyst with a first inert gas; contacting the portion the catalyst with oxygen to form a regenerated catalyst by removal of coke; contacting the regenerated catalyst with a second inert gas which is nitrogen; and introducing at least a portion of the regenerated catalyst into the conversion reactor.