Claims
- 1. A catalyst system suitable for use in the oxidative conversion of methane to ethylene which comprises a first support component which is a non-reducible metal compound and which first component is substantially refractory at a temperature of 500.degree.-1000.degree. C. and a second component which is one or more oxycompounds selected from the group consisting of boron and phosphorus supported on the surface of the first component.
- 2. A catalyst system as claimed in claim 1 in which the non-reducible metal compound is selected from the group consisting of BeO, MgO, CaO, SrO, BaO, Sc.sub.2 O.sub.3, Y.sub.2 O.sub.3, La.sub.2 O.sub.3, ZrO.sub.2, HfO.sub.2, Ta.sub.2 O.sub.5, ZnO, GeO.sub.2, SiO.sub.2, SiC, BN, Nd.sub.2 O.sub.3, Gd.sub.2 O.sub.3, Dy.sub.2 O.sub.3, Ho.sub.2 O.sub.3, Er.sub.2 O.sub.3 and Lu.sub.2 O.sub.3.
- 3. A catalyst system as claimed in claim 1 in which the first component is selected from the group consisting of and CaO.
- 4. A catalyst system as claimed in claim 1 in which the first component is SiO.sub.2.
- 5. A catalyst system as claimed in claim 1 in which the first component is selected from the group consisting of BN, SiC and ZnO and contains from 0.1 to 40 wt % of a dopant.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8619717 |
Aug 1986 |
GBX |
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Parent Case Info
This is a division of application No. 07/084,809, filed Aug. 13, 1987, now U.S. Pat. No. 4,873,388.
US Referenced Citations (10)
Foreign Referenced Citations (1)
Number |
Date |
Country |
6901645 |
Aug 1970 |
NLX |
Divisions (1)
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Number |
Date |
Country |
Parent |
84809 |
Aug 1987 |
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