Claims
- 1. A composition of matter comprising a particulate physical mixture of:
- (a) particulate solid cracking catalyst for cracking hydrocarbons; and
- (b) particulate solid oxidation promoter comprising an amount effective to promote the oxidation of carbon monoxide to carbon dioxide of platinum group metal or rhenium supported on a substrate which is substantially inert to hydrocarbon cracking and substantially free of crystalline aluminosilicate zeolite, said amount of platinum group metal or rhenium being in the range from about 0.01 part per million up to less than about 1 part per million based on the weight of (a).
- 2. A composition of claim 1 wherein the oxidation promoter comprises platinum group metal.
- 3. A composition of claim 2 wherein the platinum group metal comprises platinum.
- 4. A composition of claim 1 wherein (a) contains crystalline aluminosilicate zeolite having pores in the size range of about 6 to 20 Angstrom units.
- 5. A composition of claim 1, 2 or 3 wherein the substrate of (b) comprises a member selected from the group consisting of silica, alumina and silica-alumina.
- 6. A composition of claim 5 wherein (a) contains crystalline aluminosilicate zeolite having pores in the size range of about 6 to 20 Angstrom units.
- 7. A composition of claim 1, 2 or 3 wherein the substrate of (b) comprises alumina.
- 8. A composition of claim 7 wherein (a) contains crystalline aluminosilicate zeolite having pores in the size range of about 6 to 20 Angstrom units.
- 9. A composition of claim 4 wherein the crystalline aluminosilicate zeolite of (a) is about 1 to about 15 weight percent of (a).
- 10. A composition of claim 1 wherein the amount of platinum group metal or rhenium is in the range from about 0.01 part per million to about 0.5 part per million based on the weight of (a).
- 11. A composition of claim 1 wherein the amount of platinum group metal or rhenium is about 0.1 part per million based on the weight of (a).
Parent Case Info
This is a division of application Ser. No. 158,613, filed June 11, 1980, which in turn is a continuation of application Ser. No. 963,991, filed Nov. 27, 1978, now abandoned, which in turn is a continuation of application Ser. No. 664,057, filed Mar. 4, 1976, now abandoned, which in turn is a continuation-in-part of application Ser. No. 447,753, filed Mar. 4, 1974, now abandoned.
US Referenced Citations (7)
Divisions (1)
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Number |
Date |
Country |
Parent |
158613 |
Jun 1980 |
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Continuations (2)
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Number |
Date |
Country |
Parent |
963991 |
Nov 1978 |
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Parent |
664057 |
Mar 1976 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
447753 |
Mar 1974 |
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