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. |
申请公布号 |
EP1691923(A4) |
申请公布日期 |
2013.10.23 |
申请号 |
EP20040784329 |
申请日期 |
2004.09.17 |
申请人 |
FINA TECHNOLOGY, INC. |
发明人 |
KELLY, KEVIN, P.;BUTLER, JAMES, R. |
分类号 |
B01J38/12;B01J29/70;B01J29/90;B01J31/18;B01J38/14;B01J38/20;C07C1/00;C07C2/66;C07F15/02;C08F10/00;C08F110/02 |
主分类号 |
B01J38/12 |
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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