US3840356A
Expired / Lapsed
US
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Catalyst and process for steam reforming of hydrocarbons
Assignee: Produits Chimiques Pechiney Saint Gobain
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Filing: 1971-04-22
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Granted: 1974-10-08
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Expires: 1991-04-22
Abstract
Abstract A catalyst for use in steam reforming of hydrocarbons comprising nickel oxide, magnesia and an alumina cement, with the nickel oxide and magnesia component being present in the form of a solid solution of nickel oxide in magnesia having a surface area within the range of 0.5 to 10 m2/g.
Inventors
- 👤 P Bernusset
- 👤 J Deumas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:28
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
41 words
A catalyst as defined in claim 1 wherein the catalyst also contains crushed alumina having a surface area within the range of 10 to 100 m2/g and bEing present in an amount up to 30 percent by weight of the catalyst.
Claim 2
Dependent Claim
24 words
A catalyst as defined in claim 1 wherein the surface area of the solid solution is within the range of 1 to 3 m2/g.
Claim 3
Dependent Claim
25 words
A catalyst as defined in claim 1 wherein the molar ratio of NiO/MgO of the solid solution is within the range of 0.4 to 0.8.
Claim 4
Dependent Claim
25 words
A catalyst as defined in claim 1 wherein the catalyst also contains cobalt in the form of a solid solution of cobalt oxide in magnesia.
Claim 5
Dependent Claim
21 words
A catalyst as defined in claim 2 wherein the alumina is crushed to granules having diameters of 5 to 50 microns.
Claim 6
Dependent Claim
93 words
A process for the preparation of a catalyst for use in steam reforming of hydrocarbons comprising forming a solid solution of nickel oxide in magnesia having a mole ratio of nickel oxide to magnesia within the range of 0.1 to 1.0:1 and a surface area within the range of 0.5 to 10 m2g, admixing the solid solution with an aluminous cement in the presence of water, with the solid solution constituting from 30 to 60 percent based upon the total weight of the catalyst, and forming the resulting mixture into the desired shape.
Claim 7
Dependent Claim
24 words
A process as defined in claim 7 wherein the surface area of the solid solution is within the range of 1 to 3 m2/g.
Claim 8
Dependent Claim
22 words
A process as defined in claim 7 wherein the solid solution is admixed with the cement in the presence of crushed alumina.
Claim 9
Dependent Claim
28 words
A process as defined in claim 7 wherein the solid solution is admixed with the cement in the presence of a solid solution of cobalt oxide in magnesia.
Claim 10
Dependent Claim
22 words
A process as defined in claim 7 which includes the steps of aging the shapes in water, drying and calcining the shapes.
Claim 11
Dependent Claim
96 words
In a process for the steam reforming of hydrocarbons in which a hydrocarbon is contacted with a catalyst in the presence of steam at elevated temperatures and pressures, the improvement comprising a catalyst comprising a solid solution of nickel oxide in magnesia agglomerated with an aluminous cement, with the solid solution of nickel oxide in magnesia having been formed prior to agglomeration of the solid solution with the cement and having a surface area within the range of 0.5 to 10 m2/g, said solid solution constituting from 30 to 60 percent by weight of the catalyst.
Claim 12
Dependent Claim
26 words
A method as defined in claim 12 wherein the catalyst also contains crushed alumina having a surface area within the range of 10 to 100 m2/g.
Claim 13
Dependent Claim
24 words
A method as defined in claim 12 wherein the catalyst contains cobalt in the form of a solid solution of cobalt oxide in magnesia.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |