Invention Grant
US07678347B2 High phosphorous poisoning resistant catalysts for treating automobile exhaust 有权
用于处理汽车尾气的高磷中毒催化剂

High phosphorous poisoning resistant catalysts for treating automobile exhaust
Abstract:
The present invention discloses novel catalysts for treating automobile exhaust that have increased resistance to poisoning from oil- and/or fuel-derived additives. In the catalysts of this invention, the catalytic materials are not coated onto a front-end poison capture zone of the support that carries the catalytic layers. Since poisonous elements tend to deposit on the upstream end of the catalyst, such poisons do not inactivate any of the catalytic materials.
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