Effects of SO/sub 2/ on the performance of noble metal catalysts in automobile exhaust
Journal Article
·
· J. Catal.; (United States)
OSTI ID:6067755
SO/sub 2/ inhibits important three-way or stoichiometric catalytic reactions. Of the noble metals studied (Pt, Pd, Rh, Ir), Rh is particularly resistant to SO/sub 2/ for NO removal while Pt is strongly inhibited by SO/sub 2/. This is an important reason why Rh is useful for effective NO control. It is particularly effective for converting NO under strongly oxidizing conditions in the presence of SO/sub 2/ NH/sub 3/ formation is inhibited by SO/sub 2/ over the metals studied. Similarly under reducing conditions, propylene conversion is inhibited by SO/sub 2/ over the metals studied.
- Research Organization:
- General Motors Research Labs., Warren, MI
- OSTI ID:
- 6067755
- Journal Information:
- J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 57:3; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
AMMONIA
CATALYTIC CONVERTERS
CHALCOGENIDES
ELEMENTS
EQUIPMENT
EXHAUST GASES
GASEOUS WASTES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
IRIDIUM
METALS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM
PERFORMANCE
PLATINUM
PLATINUM METALS
POISONING
POLLUTION CONTROL EQUIPMENT
REFRACTORY METALS
RHODIUM
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TRANSITION ELEMENTS
WASTES
330700* -- Advanced Propulsion Systems-- Emission Control
AMMONIA
CATALYTIC CONVERTERS
CHALCOGENIDES
ELEMENTS
EQUIPMENT
EXHAUST GASES
GASEOUS WASTES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
IRIDIUM
METALS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PALLADIUM
PERFORMANCE
PLATINUM
PLATINUM METALS
POISONING
POLLUTION CONTROL EQUIPMENT
REFRACTORY METALS
RHODIUM
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TRANSITION ELEMENTS
WASTES