Hydrothermally stable Ag-zeolite traps for small olefin...

Details Hydrothermally stable Ag-zeolite traps for small olefin... Hydrothermally stable Ag-zeolite traps for small olefin...

2008-09-02

2008-09-02

Wood, Elizabeth D (Department: 1793)

Chemistry of inorganic compounds

Nitrogen or compound thereof

Oxygen containing

C423S400000, C423S402000, C423S404000, C423S405000, C423S512100, C423S532000, C423S533000

Reexamination Certificate

active

11606817

ABSTRACT:
A hydrocarbon trap comprises an Ag-zeolite which is heated by a unique steaming regimen.

REFERENCES:
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patent: 909579 (1999-04-01), None
patent: 1642641 (2006-04-01), None
PCT International Search Report PCT/US2006/045871 mailed Apr. 19, 2007.
U.S. Appl. No. 11/639,182 “Zeolite Catalyst with Improved NOx Reduction in SCR”, filed Dec. 12, 2006.

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