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Title: Process of activation of a palladium catalyst system

Patent ·
OSTI ID:1026670

Improved processes for activating a catalyst system used for the reduction of nitrogen oxides are provided. In one embodiment, the catalyst system is activated by passing an activation gas stream having an amount of each of oxygen, water vapor, nitrogen oxides, and hydrogen over the catalyst system and increasing a temperature of the catalyst system to a temperature of at least 180.degree. C. at a heating rate of from 1-20.degree./min. Use of activation processes described herein leads to a catalyst system with superior NOx reduction capabilities.

Research Organization:
Siemens Energy, Inc. (Orlando, FL)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Number(s):
7,989,385
Application Number:
12/613,176
OSTI ID:
1026670
Country of Publication:
United States
Language:
English

References (3)

Industrial H2-SCR of NO on a novel Pt/MgO–CeO2 catalyst journal September 2007
Characterization of palladium supported on sulfated zirconia catalysts by DRIFTS, XAS and n-butane isomerization reaction in the presence of hydrogen journal September 1995
Roles of palladium and platinum in the selective catalytic reduction of nitrogen oxides by methane on palladium–platinum-loaded sulfated zirconia journal February 2001