US4239658A
Expired / Lapsed
US
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Catalysts for the conversion of relatively low molecular weight hydrocarbons to higher molecular weight hydrocarbons and the regeneration of the catalysts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1979-04-05
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Granted: 1980-12-16
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Expires: 1999-04-05
Abstract
Abstract Novel regenerable catalyst-reagents, and a new and improved process utilizing said regenerable catalyst-reagents, for the conversion, and oligomerization of hydrocarbons, notably methane, at relatively low temperatures to produce products rich in ethylene or benzene, or both, usually in admixture with other hydrocarbons; and process for the regeneration of said catalyst-reagents. (a) The catalyst-reagents are multi-functional and are comprised of (1) a Group VIII noble metal having an atomic number of 45 or greater, nickel, or a Group I-B noble metal having an atomic number of 47 or greater; (2) a Group VI-B metal oxide which is capable of being reduced to a lower oxide, or admixture of metal oxides which includes one or more of such metal oxides; and, (3) a Group II-A metal selected from the group consisting of magnesium and strontium, composited with a suitably passivated, spinel-coated refractory support, notably an inorganic oxide support, preferably alumina; preferably calcium, composited with a suitably passivated, non-zinc containing spinel coated refractory support, notably an inorganic oxide support, preferably alumina.
Inventors
- 👤 Howard L. Mitchell, III
- 👤 Robert H. Waghorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:21
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/54; B01J23/56; B01J23/64; B01J23/66; B01J23/68; B01J23/683; B01J23/70; B01J23/76; B01J23/84; B01J23/85; C; C07; C07C; C07C2/00; C07C2521/00; C07C2521/02; C07C2521/04; C07C2521/06; C07C2521/10; C07C2523/00; C07C2523/02; C07C2523/16; C07C2523/24; C07C2523/38; C07C2523/40; C07C2523/48; C07C2523/70; C07C2523/74; C07C2523/755; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y02P20/582; Y02P20/584; Y10; Y10S; Y10S502/00; Y10S502/524; Y10S585/00; Y10S585/929; Y10S585/943
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
89 words
A multi-functional regenerable catalyst-reagent composition suitable for the oligomerization of hydrocarbons which comprises (1) a Group VIII noble metal having an atomic number of 45 or greater, nickel, or a Group I-B noble metal having an atomic number of 47 or greater, (2) a Group VI-B metal oxide which is capable of being reduced to a lower oxide, and (3) a Group II-A metal selected from the group consisting of magnesium and strontium, composited with a spinel-coated refractory support, or calcium composited with a non-zinc containing spinel-coated refractory support.
Claim 2
Dependent Claim
89 words
A multi-functional regenerable catalyst-reagent composition suitable for the oligomerization of hydrocarbons which comprises (1) a Group VIII noble metal having an atomic number of 45 or greater, nickel, or a Group I-B noble metal having an atomic number of 47 or greater, (2) a Group VI-B metal oxide which is capable of being reduced to a lower oxide, and (3) a Group II-A metal selected from the group consisting of magnesium and strontium, composited with a spinel-coated refractory support, or calcium composited with a non-zinc containing spinel-coated refractory support.
Claim 3
Dependent Claim
16 words
The composition of claim 1 wherein the Group VIII noble metal is platinum, iridium or palladium.
Claim 4
Dependent Claim
15 words
The composition of claim 1 wherein the Group VI-B metal is chromium, molybdenum or tungsten.
Claim 5
Dependent Claim
12 words
The composition of claim 1 wherein the Group II-A metal is calcium.
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein the spinel-coated inorganic oxide is alumina.
Claim 7
Dependent Claim
29 words
The composition of claim 1 wherein the Group VIII noble metal is platinum, the Group VI-B metal is chromium, molybdenum or tungsten, and the Group II-A metal is calcium.
Claim 8
Dependent Claim
33 words
The composition of claim 1 wherein the Group VIII noble metal is platinum, the Group VI-B metal is chromium, molybdenum or tungsten, the Group II-A metal is calcium, and the support is alumina.
Claim 9
Dependent Claim
41 words
The composition of claim 1 wherein the catalyst-reagent composition contains additionally a Group III-A metal having an atomic number of 31 or greater, a IV-B, V-B or VII-B transition metal, iron, cobalt, or a metal of the actinide or lanthanide series.
Claim 10
Dependent Claim
68 words
The composition of claim 1 wherein the Group VIII noble metal is platinum, the Group VI-B metal is chromium, molybdenum or tungsten, the Group II-A metal is calcium, the support is alumina, and the catalyst-reagent composition contains additionally a Group III-A metal having an atomic number of 31 or greater, a IV-B, V-B or VII-B transition metal, iron, cobalt, or a metal of the actinide or lanthanide series.
Claim 11
Dependent Claim
117 words
A process for the regeneration of a catalyst-reagent which has become inactivated in a hydrocarbon conversion reaction which comprises contacting said catalyst-reagent comprising (1) a Group VIII noble metal having an atomic number of 45 or greater, nickel, or a Group I-B noble metal having an atomic number of 47 or greater, (2) a Group VI-B metal oxide which is capable of being reduced to a lower oxide, and (3) a Group II-A metal selected from the group consisting of magnesium and strontium, composited with a spinel-coated refractory support, or calcium composited with a non-zinc containing spinel-coated refractory support with water, oxygen or an oxygen-containing gas at temperatures ranging from about 1000° F. to about 1600° F.
Claim 12
Dependent Claim
117 words
A process for the regeneration of a catalyst-reagent which has become inactivated in a hydrocarbon conversion reaction which comprises contacting said catalyst-reagent comprising (1) a Group VIII noble metal having an atomic number of 45 or greater, nickel, or a Group I-B noble metal having an atomic number of 47 or greater, (2) a Group VI-B metal oxide which is capable of being reduced to a lower oxide, and (3) a Group II-A metal selected from the group consisting of magnesium and strontium, composited with a spinel-coated refractory support, or calcium composited with a non-zinc containing spinel-coated refractory support with water, oxygen or an oxygen-containing gas at temperatures ranging from about 1000° F. to about 1600° F.
Claim 13
Dependent Claim
16 words
The process of claim 10 wherein the Group VIII noble metal is platinum, iridium or palladium.
Claim 14
Dependent Claim
15 words
The process of claim 10 wherein the Group VI-B metal is chromium, molybdenum or tungsten.
Claim 15
Dependent Claim
12 words
The process of claim 10 wherein the Group II-A metal is calcium.
Claim 16
Dependent Claim
12 words
The process of claim 10 wherein the spinel-coated inorganic oxide is alumina.
Claim 17
Dependent Claim
29 words
The process of claim 10 wherein the Group VIII noble metal is platinum, the Group VI-B metal is chromium, molybdenum or tungsten, and the Group II-A metal is calcium.
Claim 18
Dependent Claim
33 words
The process of claim 10 wherein the Group VIII noble metal is platinum, the Group VI-B metal is chromium, molybdenum or tungsten, the Group II-A metal is calcium, and the support is alumina.
Claim 19
Dependent Claim
41 words
The process of claim 10 wherein the catalyst-reagent composition contains additionally a Group III-A metal having an atomic number of 31 or greater, a IV-B, V-B or VII-B transition metal, iron, cobalt, or a metal of the actinide or lanthanide series.
Claim 20
Dependent Claim
68 words
The process of claim 10 wherein the Group VIII noble metal is platinum, the Group VI-B metal is chromium, molybdenum or tungsten the Group II-A metal is calcium, the support is alumina, and the catalyst-reagent composition contains additionally a Group III-A metal having an atomic number of 31 or greater, a IV-B, V-B or VII-B transition metal, iron, cobalt, or a metal of the actinide or lanthanide series.
Claim 21
Dependent Claim
22 words
The process of claim 10 wherein the catalyst-reagent contains coke deposits, and coke is burned from the catalyst to generate process heat.
Claim 22
Dependent Claim
45 words
The composition of claim 1 wherein the Group VIII noble metal, nickel or Group I-B noble metal is deposited on the support in concentration ranging from about 0.01 percent to about 2 percent, calculated as metallic metal based on the weight of the total catalyst-reagent.
Claim 23
Dependent Claim
33 words
The composition of claim 20 wherein the Group VIII noble metal, nickel or Group I-B noble metal is deposited on the support in concentration ranging from about 0.1 percent to about 1 percent.
Claim 24
Dependent Claim
39 words
The composition of claim 1 wherein the Group VI-B metal oxide is deposited on the catalyst-reagent in concentration ranging from about 1 percent to about 20 percent calculated as metallic metal based on the weight of the total catalyst-reagent.
Claim 25
Dependent Claim
27 words
The composition of claim 1 wherein the Group VI-B metal oxide is deposited on the catalyst-reagent in concentration ranging from about 3 percent to about 10 percent.
Claim 26
Dependent Claim
38 words
The composition of claim 1 wherein the Group II-A metal is deposited on the catalyst-reagent in concentration ranging from about 1 percent to about 30 percent calculated as metallic metal based on the weight of the total catalyst-reagent.
Claim 27
Dependent Claim
26 words
The composition of claim 24 wherein the Group II-A metal is deposited on the catalyst-reagent in concentration ranging from about 5 percent to about 25 percent.
Claim 28
Dependent Claim
26 words
The composition of claim 22 wherein the Group II-A metal is provided in atomic ratio of at least about 3:1 relative to the Group VI-B metal.
Claim 29
Dependent Claim
23 words
The composition of claim 26 wherein the Group II-A metal is provided in atomic ratio of at least about 3:1 to about 40:1.
Claim 30
Dependent Claim
23 words
The composition of claim 27 wherein the Group II-A metal is provided in atomic ratio of at least about 5:1 to about 12:1.
Claim 31
Dependent Claim
44 words
The composition of claim 1 wherein the Group VIII noble metal is platinum, the Group VI-B metal is chromium, molybdenum or tungsten, the Group II-A metal is magnesium, strontium or calcium, and the support is magnesium oxide, titanium oxide, zirconium oxide or hafnium oxide.
Claim 32
Dependent Claim
45 words
The process of claim 10 wherein the Group VIII noble metal, nickel or Group I-B noble metal is deposited on the support in concentration ranging from about 0.01 percent to about 2 percent, calculated as metallic metal based on the weight of the total catalyst-reagent.
Claim 33
Dependent Claim
33 words
The process of claim 30 wherein the Group VIII noble metal, nickel or Group I-B noble metal is deposited on the support in concentration ranging from about 0.1 percent to about 1 percent.
Claim 34
Dependent Claim
39 words
The process of claim 10 wherein the Group VI-B metal oxide is deposited on the catalyst-reagent in concentration ranging from about 1 percent to about 20 percent calculated as metallic metal based on the weight of the total catalyst-reagent.
Claim 35
Dependent Claim
27 words
The process of claim 30 wherein the Group VI-B metal oxide is deposited on the catalyst-reagent in concentration ranging from about 3 percent to about 10 percent.
Claim 36
Dependent Claim
39 words
The process of claim 10 wherein the magnesium, strontium or calcium is deposited on the catalyst-reagent in concentration ranging from about 1 percent to about 30 percent calculated as metallic metal based on the weight of the total catalyst-reagent.
Claim 37
Dependent Claim
27 words
The process of claim 34 wherein the magnesium, strontium or calcium is deposited on the catalyst-reagent in concentration ranging from about 5 percent to about 25 percent.
Claim 38
Dependent Claim
27 words
The process of claim 32 wherein the magnesium, strontium or calcium is provided in atomic ratio of at least about 3:1 relative to the Group VI-B metal.
Claim 39
Dependent Claim
24 words
The process of claim 36 wherein the magnesium, strontium or calcium is provided in atomic ratio of at least about 3:1 to about 40:1.
Claim 40
Dependent Claim
23 words
The process of claim 37 wherein the magnesium, strontium of calcium is provided in atomic ratio of at least 5:1 to about 12:1.
Claim 41
Dependent Claim
44 words
The process of claim 10 wherein the Group VIII noble metal is platinum, the Group VI-B metal is chromium, molybdenum or tungsten, the Group II-A metal is magnesium, strontium or calcium, and the support is magnesium oxide, titanium oxide, zirconium oxide or hafnium oxide.
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) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |