US3926850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and process for the conversion of higher hydrocarbons
Assignee: Siemens AG
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Filing: 1973-02-26
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Granted: 1975-12-16
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Expires: 1993-02-26
Abstract
Abstract This disclosure is directed to a catalyst and process for converting higher hydrocarbons into mixtures containing carbon monoxide, hydrogen, methane and carbon dioxide. The catalyst comprises gamma -aluminum oxide and/or Eta -aluminum oxide, kaolinite and a transition metal component.
Inventors
- 👤 Hana Kostka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:31
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/0009; B01J23/00; B01J23/38; B01J23/40; B01J23/42; B01J23/70; B01J23/76; B01J23/83; 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; C01B2203/1064; C01B2203/107; C01B2203/1082; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
44 words
A CATALYST FOR CONVERTING HIGHER HYDROCARBONS INTO GAS MIXTURES CONTAINING CARBON MONOXIDE, HYDROGEN, METHANE AND CARBON DIOXIDE COMPRISING Y-ALUMINUM OXIDE, NALUMINUM OXIDE, KAOLINITE CONTAINING TITANIUM DIOXIDE AND AN ACTIVE COMPONENT SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND THE OXIDES OF LANTHANUM AND COBALT.
Claim 2
Dependent Claim
44 words
A CATALYST FOR CONVERTING HIGHER HYDROCARBONS INTO GAS MIXTURES CONTAINING CARBON MONOXIDE, HYDROGEN, METHANE AND CARBON DIOXIDE COMPRISING Y-ALUMINUM OXIDE, NALUMINUM OXIDE, KAOLINITE CONTAINING TITANIUM DIOXIDE AND AN ACTIVE COMPONENT SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND THE OXIDES OF LANTHANUM AND COBALT.
Claim 3
Dependent Claim
44 words
A catalyst according to claim 1 comprising about 5 to 90% by weight of gamma -Al2O3, about 5 to 80% by weight of eta -Al2O3, about 5 to 50% by weight of kaolinite and about 0.3 to 35% by weight of said active component.
Claim 4
Dependent Claim
44 words
A catalyst according to claim 2 comprising about 30 to 75% by weight of gamma -Al2O3, about 15 to 70% by weight of eta -Al2O3, about 10 to 25% by weight of kaolinite and about 0.5 to 22% by weight of said active component.
Claim 5
Dependent Claim
21 words
A catalyst according to claim 1 containing about 0.6% by weight of platinum, relative to the total weight of the catalyst.
Claim 6
Dependent Claim
25 words
A catalyst according to claim 1 containing about 9 to 10% by weight of lanthanum and cobalt, relative to the total weight of the catalyst.
Claim 7
Dependent Claim
17 words
A catalyst according to claim 5 containing lanthanum and cobalt in the mol ratio of about 1:1.
Claim 8
Dependent Claim
25 words
A catalyst according to claim 1 wherein the titanium dioxide content of the kaolinite is about 0.5 to 10% by weight, relative to the kaolinite.
Claim 9
Dependent Claim
18 words
A catalyst according to claim 7 wherein the kaolinite contains About 1 to 6% by weight of TiO2.
Claim 10
Dependent Claim
16 words
A catalyst according to claim 8 wherein the kaolinite contains about 1.6% by weight of TiO2.
Claim 11
Independent Claim
51 words
A method for the manufacture of a catalyst comprising mixing aluminum oxyhydrates in the form of Boehmite and Bayerite, with kaolinite containing titanium dioxide, plasticizing said mixture with acid to form a paste, mixing the paste with at least one compound of platinum or cobalt and lanathanum; and molding the product.
Claim 12
Independent Claim
51 words
A method for the manufacture of a catalyst comprising mixing aluminum oxyhydrates in the form of Boehmite and Bayerite, with kaolinite containing titanium dioxide, plasticizing said mixture with acid to form a paste, mixing the paste with at least one compound of platinum or cobalt and lanathanum; and molding the product.
Claim 13
Dependent Claim
12 words
A method according to claim 10 wherein the kaolinite is electro-osmotically pretreated.
Claim 14
Dependent Claim
65 words
A method according to claim 10 comprising thoroughly mixing the Boehmite and Bayerite with the Kaolinite; mixing these with an aqueous solution of at least one inorganic acid at elevated temperature to obtain a paste, mixing the paste with at least one compound of platinum or cobalt and lanathanum in salt form and pressing this mixture into a molding; drying and subsequently annealing the molding.
Claim 15
Dependent Claim
19 words
A method according to claim 12 wherein molding is made at a pressure of about 30 to 300 N/mm2.
Claim 16
Dependent Claim
23 words
A method according to claim 12 wherein lanathanum nitrate and cobalt nitrate is used as the lanathanum and cobalt compound in salt form.
Claim 17
Dependent Claim
18 words
A method according to claim 12 wherein nitric acid and/or hydrofluoric acid is used as the inorganic acid.
Claim 18
Dependent Claim
32 words
A method according to claim 15 wherein 0.5 to 10% by weight of nitric acid, calculated as 100-% acid and referred to the total aluminum oxide content of the catalyst, is used.
Claim 19
Dependent Claim
32 words
A method according to claim 15 wherein 0.1 to 12% by weight of hydrofluoric acid, calculated as 100-% acid and referred to the total aluminum oxide content of the catalyst, is used.
Claim 20
Dependent Claim
19 words
A method according to claim 12 wherein the molding is annealed at a temperature of about 600* to 800*C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |