发明名称 |
Alkylation and catalyst regenerative process |
摘要 |
A process for the regeneration of a deactivated zeolite beta catalyst such as rare earth promoted zeolite beta catalyst deactivated in the course of an aromatic alkylation reaction. A zeolite beta conversion catalyst deactivated with the deposition of coke is heated to a temperature in excess of 300° C. in an oxygen-free environment. An oxidative regeneration gas is supplied to the catalyst bed with oxidation of a portion of a relatively porous coke component to produce an exotherm moving through the catalyst bed. At least one of the temperature and oxygen content of the gas is progressively increased to oxidize a porous component of the coke. Regeneration gas is supplied having at least one of an increased oxygen content or increased temperature to oxidize a less porous refractory component of the coke. The regeneration process is completed by passing an inert gas through the catalyst bed at a reduced temperature.
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申请公布号 |
US2005075237(A1) |
申请公布日期 |
2005.04.07 |
申请号 |
US20030678577 |
申请日期 |
2003.10.03 |
申请人 |
KELLY KEVIN P.;BUTLER JAMES R. |
发明人 |
KELLY KEVIN P.;BUTLER JAMES R. |
分类号 |
B01J29/70;B01J29/90;B01J31/18;B01J38/14;C07C2/66;C07F15/02;C08F10/00;C08F110/02;(IPC1-7):C07C2/68 |
主分类号 |
B01J29/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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