Discharge gas treatment catalyst

Details Discharge gas treatment catalyst Discharge gas treatment catalyst

2011-01-04

2011-01-04

Nguyen, Cam N (Department: 1793)

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

Catalyst or precursor therefor

Silicon containing or process of making

C502S242000, C502S254000, C502S309000, C502S313000, C502S326000, C502S350000, C502S407000, C502S439000

Reexamination Certificate

active

07863216

ABSTRACT:
The invention provides a discharge gas treatment catalyst which can effectively decreases NOxand SO3contained in a discharge gas. The discharge gas treatment catalyst, for removing nitrogen oxide and sulfur trioxide from a discharge gas, includes a carrier which is formed of titania-tungsten oxide and which carries ruthenium, and a titania-tungsten oxide-based NOxremoval catalyst serving as a substrate which is coated with the carrier. When a discharge gas to which ammonia has been added and which contains SO3and NOxis brought into contact with the catalyst, decomposition of ammonia is suppressed by ruthenium, and reduction of SO3and NOxcontained in the discharge gas is promoted, whereby SO3concentration and NOxconcentration can be further decreased.

REFERENCES:
patent: 4350613 (1982-09-01), Nishino et al.
patent: 5272125 (1993-12-01), Weible et al.
patent: 6117814 (2000-09-01), Plecha et al.
patent: 6124367 (2000-09-01), Plecha et al.
patent: 6403844 (2002-06-01), Zhang et al.
patent: 6444608 (2002-09-01), Oki et al.
patent: 6613299 (2003-09-01), Dang et al.
patent: 6977237 (2005-12-01), Geerlings et al.
patent: 7125822 (2006-10-01), Nakano et al.
patent: 7138358 (2006-11-01), Huang et al.
patent: 7179442 (2007-02-01), Hagemeyer et al.
patent: 7211540 (2007-05-01), Nakanishi
patent: 7348293 (2008-03-01), Timken
patent: 7393809 (2008-07-01), Kim
patent: 7538064 (2009-05-01), Gillespie et al.
patent: 7541012 (2009-06-01), Yeung et al.
patent: 7541310 (2009-06-01), Espinoza et al.
patent: 7618917 (2009-11-01), Vanoppen et al.
patent: 2002/0131915 (2002-09-01), Shore et al.
patent: 2002/0147103 (2002-10-01), Ruettinger et al.
patent: 2003/0166951 (2003-09-01), Blankenstein et al.
patent: 2004/0097371 (2004-05-01), Jangbarwala
patent: 2004/0176619 (2004-09-01), Vanoppen et al.
patent: 2005/0032637 (2005-02-01), Kim

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