Exhaust gas purifying catalyst and process for purification...

Details Exhaust gas purifying catalyst and process for purification... Exhaust gas purifying catalyst and process for purification...

2008-07-01

2008-07-01

Wood, Elizabeth D (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

C502S063000, C502S064000, C502S067000, C502S071000, C502S077000, C423S239100, C423S239200, C423S213200, C423S213500, C423S219000, C423S245300

Reexamination Certificate

active

07393804

ABSTRACT:
An exhaust gas purifying catalyst has a catalytic component including copper, ZSM-5, and β zeolite. This exhaust gas purifying catalyst reduces nitrogen oxides even from low temperature range and exhibits durability even under a thermal load of high temperature.

REFERENCES:
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patent: 11-300211 (1999-11-01), None

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