Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1990-11-28
1992-08-18
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
4232135, B01J 2104, B01J 2106, B01J 2342
Patent
active
051399946
ABSTRACT:
A method of making an oxidation catalyst for use in automotive exhaust gas treatment by impregnating with platinum a mechanical carrier having a support comprised substantially of alumina to produce a composite having, by weight, 1-5% platinum, and impregnating (by incipient wetness) the composite with an organo-titanium compound (titanium butoxide) and decomposing such compound to form a discontinuous titanium oxide phase on or adjacent the exposed portions of the composite.
A method of treating automotive exhaust gases carrying hydrocarbons is also disclosed, comprising initiating combustion in an internal combustion engine fueled with fossil fuel, placing an oxidation catalyst at a location in close proximity to the source of such emissions, and exposing at such location the exhaust gases to a catalyst consisting of an Al.sub.2 O.sub.3 substrate, a continuous coating of platinum in an amount of 0.1-5% by weight, and a complexing discontinuous phase of titania thereover in an amount of 0.1-2.5%.
REFERENCES:
patent: 2894901 (1959-07-01), Gilbert et al.
patent: 4134860 (1979-01-01), Hindin et al.
patent: 4219447 (1980-08-01), Wheelock
patent: 4237030 (1980-12-01), Noguchi et al.
patent: 4478797 (1984-10-01), Diwell et al.
patent: 4650782 (1987-03-01), Onal
patent: 4992405 (1991-02-01), Chattha et al.
patent: 5024824 (1991-06-01), Henk et al.
Chattha Mohinder S.
Subramanian Somasundaram
Watkins William L. H.
Ford Motor Company
Malleck Joseph W.
May Roger L.
Shine W. J.
LandOfFree
Low temperature light-off platinum catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low temperature light-off platinum catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low temperature light-off platinum catalyst will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1249033