发明名称 |
Zeolite catalysts having stabilized hydrogenation-dehydrogenation function |
摘要 |
A zeolite catalyst suitable for use in shape-selective hydrocarbon conversion processes. The catalyst is modified by incorporation therein of a hydrogenation-dehydrogenation functional metal, followed by gradient selectivation with an organosilicon compound under conversion conditions, wherein the gradient selectivation conditions are characterized by a progressive temperature gradient. The use of a progressive temperature gradient during the in situ selectivation procedure unexpectedly yields a catalyst in which the hydrogenation-dehydrogenation function is stabilized, thereby enabling long duration hydrocarbon conversion processes with low by-product make.
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申请公布号 |
US6541408(B2) |
申请公布日期 |
2003.04.01 |
申请号 |
US20010041215 |
申请日期 |
2001.10.29 |
申请人 |
EXXONMOBIL OIL CORP. |
发明人 |
CHANG CLARENCE D.;RODEWALD, JR. PAUL G. |
分类号 |
B01J29/06;C07C6/12;(IPC1-7):B01J29/06;B01J21/00;B01J29/00;C07C5/22 |
主分类号 |
B01J29/06 |
代理机构 |
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地址 |
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