Simplified regeneration procedure

专利名称：Simplified regeneration procedure发明人：John D. Paynter,Beverly B. Fuqua,Richard R.

Cecil

申请号：US05/613242申请日：19750915公开号：US04046673A公开日：19770906

摘要：Supported iridium-containing hydrocarbon conversion catalysts which are atleast partially deactivated due to the deposition of carbonaceous residues thereonduring contact with hydrocarbons are regenerated by contacting the residue-containingcatalyst, prior to contact with oxygen at elevated temperature, with a chlorine-containingreagent to increase the catalyst chlorine content to a level in the range of from about 0.7to 2.0 wt. %, based on anhydrous, carbonaceous residue- free catalyst, and thereaftercontacting the catalyst with a substantially sulfur-free gaseous mixture containing oxygenat a temperature varying from about 775. degree. to 900° F. for a time sufficient to burnat least a portion of the carbonaceous residue from the catalyst while maintaining atleast 0.7 wt. % chlorine on the catalyst during contact with said gaseous mixture.

申请人：EXXON RESEARCH AND ENGINEERING COMPANY

代理人：John W. Ditsler

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