US4308173A
Expired / Lapsed
US
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Catalyst for cracking heavy hydrocarbons
Assignee: Eneos Corp
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Filing: 1980-03-24
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Granted: 1981-12-29
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Expires: 2000-03-24
Abstract
Abstract A catalyst is described for use in a process for oxidizing and/or cracking a heavy hydrocarbon under fluidizing conditions in the presence of the catalyst, including simultaneously or subsequently reducing iron oxides in said catalyst and then reacting the reduced oxidation-state iron with steam to produce hydrogen, said catalyst consisting essentially of from 30 to 60 wt % Fe, 0.1 to 10 wt % Ni, and 10 wt % or less SiO2, and having a specific surface area of from 0.1 to 30 m2/g and an apparent specific gravity of from 2.5 to 4.0.
Inventors
- 👤 Kuniaki Fujimori
- 👤 Teruo Suzuka
- 👤 Yukio Inoue
- 👤 Shirou Aizawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:31
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/755; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/061; C01B3/063; C01B3/08; C01B3/10; C10G11/02; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/36
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
93 words
A catalyst for use in a process for oxidizing and/or cracking a heavy hydrocarbon under fluidizing conditions in the presence of the catalyst, including simultaneously or subsequently reducing iron oxides in said catalyst and then reacting the reduced oxidation-state iron with steam to produce hydrogen, said catalyst consisting essentially of from 30 to 60 wt% Fe, 0.1 to 10 wt% Ni, and 10 wt% or less SiO 2 , and having a specific surface area of from 0.1 to 30 m 2 /g and an apparent specific gravity of from 2.5 to 4.0.
Claim 2
Dependent Claim
93 words
A catalyst for use in a process for oxidizing and/or cracking a heavy hydrocarbon under fluidizing conditions in the presence of the catalyst, including simultaneously or subsequently reducing iron oxides in said catalyst and then reacting the reduced oxidation-state iron with steam to produce hydrogen, said catalyst consisting essentially of from 30 to 60 wt% Fe, 0.1 to 10 wt% Ni, and 10 wt% or less SiO 2 , and having a specific surface area of from 0.1 to 30 m 2 /g and an apparent specific gravity of from 2.5 to 4.0.
Claim 3
Dependent Claim
44 words
The catalyst of claim 1, said catalyst having been, prepared by pulverizing, kneading, granulating and calcining a raw material comprising one or more iron compounds or natural iron ores or a mixture of iron compounds and natural iron ores with an inorganic refractory material.
Claim 4
Dependent Claim
22 words
The catalyst of claim 2, wherein said inorganic refractory material is Al 2 O 3 , MgO, CaO or a mixture thereof.
Claim 5
Dependent Claim
28 words
The catalyst of claim 3, wherein said inorganic refractory material is CaO in an amount from 0.01 to 20 wt% based on the total weight of the catalyst.
Claim 6
Dependent Claim
37 words
The catalyst of claim 3, wherein said inorganic refractory material is Al 2 O 3 , MgO or a mixture thereof in an amount from 5 to 60 wt% based on the total weight of the catalyst.
Claim 7
Dependent Claim
18 words
The catalyst of claim 2, wherein the pulverized raw material has a particle size of 10μ or less.
Claim 8
Dependent Claim
18 words
The catalyst of claim 2, wherein the kneading is carried out by adding water and using a kneader.
Claim 9
Dependent Claim
22 words
The catalyst of claim 2, wherein the granulating is carried out by means of a spray-granulating, crush-granulating, extrusion-granulating, roll-granulating, or compression granulating.
Claim 10
Dependent Claim
20 words
The catalyst of claim 2, wherein the calcining is carried out at a temperature of 900° C. to 1,200° C.
Claim 11
Dependent Claim
15 words
The catalyst of claim 1, wherein the mean particle size is between 60 and 600μ.
References Cited (Backward Citations)
US4224140A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-28 | 1985-06-29 | 1985-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-28 | 1989-06-29 | 1989-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-28 | 1993-06-29 | 1993-12-29 | $7700.00 | Window Closed / Lapsed |