US4634518A
Expired / Lapsed
US
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Platinum-barium-type L zeolite
Assignee: Chevron USA Inc
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Filing: 1982-08-06
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Granted: 1987-01-06
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Expires: 2002-08-06
Abstract
Abstract A new catalyst is disclosed which is useful for dehydrocyclizing alkanes. This catalyst contains a type L zeolite, a Group VIII metal, and an alkaline earth metal. Preferably, this catalyst contains a type L zeolite, from 0.1% to 5% by weight platinum and from 1% to 20% by weight barium.
Inventors
- 👤 Waldeen C. Buss
- 👤 Thomas R. Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:32
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/095; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/60; B01J29/605; B01J29/61; B01J29/62; C07; C07C; C07C4/00; C07C4/08; C07C4/12; C07C4/14; C07C4/18; C07C5/00; C07C5/32; C07C5/373; C07C5/387; C07C5/393; C07C5/41; C07C5/415; C07C5/417; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/42; B01J29/08; C07C2523/00; C07C2523/02; C07C2523/38; C07C2523/40; C07C2523/42; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/60; C07C2529/61; C07C2529/62; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
41 words
A method of reforming hydrocarbons comprising contacting said hydrocarbons with a catalyst comprising: (a) a type L zeolite; (b) at least one Group VIII metal; and (c) an alkaline earth metal selected from the group consisting of barium, strontium and calcium.
Claim 2
Independent Claim
41 words
A method of reforming hydrocarbons comprising contacting said hydrocarbons with a catalyst comprising: (a) a type L zeolite; (b) at least one Group VIII metal; and (c) an alkaline earth metal selected from the group consisting of barium, strontium and calcium.
Claim 3
Dependent Claim
24 words
A method of reforming hydrocarbons according to claim 1 wherein said alkaline earth metal is barium and wherein said Group VIII metal is platinum.
Claim 4
Dependent Claim
28 words
A method of reforming hydrocarbons according to claim 2 wherein said catalyst has from 0.1% to 5% by weight platinum and from 0.1% to 35% by weight barium.
Claim 5
Dependent Claim
28 words
A method of reforming hydrocarbons according to claim 3 wherein said catalyst has from 0.1% to 1.5% by weight platinum and from 1% to 20% by weight barium.
Claim 6
Dependent Claim
25 words
A method of reforming hydrocarbons according to claim 4 wherein the majority of the crystals of said type L zeolite are larger than 500 Angstroms.
Claim 7
Dependent Claim
25 words
A method of reforming hydrocarbons according to claim 5 wherein the majority of the crystals of said type L zeolite are larger than 1000 Angstroms.
Claim 8
Dependent Claim
26 words
A method of reforming hydrocarbons according to claim 6 wherein at least 80% of the crystals of said type L zeolite are larger than 1000 Angstroms.
Claim 9
Dependent Claim
39 words
A method of reforming hydrocarbons according to claim 7 wherein said catalyst comprises: (a) a type L zeolite containing from 0.1% to 1.5% by weight platinum and from 1% to 20% by weight barium; and (b) an inorganic binder.
Claim 10
Dependent Claim
24 words
A method of reforming hydrocarbons according to claim 8 wherein the inorganic binder is selected from the group consisting of silica, alumina, and aluminosilicates.
Claim 11
Dependent Claim
50 words
A method of reforming hydrocarbons according to claim 9 wherein said contacting occurs at a temperature of from 400° C. to 600° C.; an LHSV of from 0.1 to 10; a pressure of from 1 atmosphere to 500 psig; and an H 2 /HC ratio of from 0 to 20:1.
Claim 12
Dependent Claim
48 words
A method of reforming hydrocarbons according to claim 3 wherein said contacting occurs at a temperature of from 450° C. to 550° C.; an LHSV of from 0.3 to 5; a pressure of 50 to 200 psig; and an H 2 /HC ratio of from 2:1 to 6:1.
Claim 13
Independent Claim
42 words
A method of dehydrocyclizing acyclic hydrocarbons comprising contacting said hydrocarbons with a catalyst comprising: (a) a type L zeolite; (b) at least one Group VIII metal; and (c) an alkaline earth metal selected from the group consisting of barium, strontium and calcium.
Claim 14
Independent Claim
42 words
A method of dehydrocyclizing acyclic hydrocarbons comprising contacting said hydrocarbons with a catalyst comprising: (a) a type L zeolite; (b) at least one Group VIII metal; and (c) an alkaline earth metal selected from the group consisting of barium, strontium and calcium.
Claim 15
Dependent Claim
25 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 12 wherein said alkaline earth metal is barium and wherein said Group VIII metal is platinum.
Claim 16
Dependent Claim
29 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 13 wherein said catalyst has from 0.1% to 5% by weight platinum and from 0.1% to 35% by weight barium.
Claim 17
Dependent Claim
29 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 14 wherein said catalyst has from 0.1% to 1.5% by weight platinum and from 1% to 20% by weight barium.
Claim 18
Dependent Claim
26 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 15 wherein the majority of the crystals of said type L zeolite are larger than 500 Angstroms.
Claim 19
Dependent Claim
26 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 16 wherein the majority of the crystals of said type L zeolite are larger than 1000 Angstroms.
Claim 20
Dependent Claim
27 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 17 wherein at least 80% of the crystals of said type L zeolite are larger than 1000 Angstroms.
Claim 21
Dependent Claim
40 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 18 wherein said catalyst comprises: (a) a type L zeolite containing from 0.1% to 1.5% by weight platinum and from 1% to 20% by weight barium; and (b) an inorganic binder.
Claim 22
Dependent Claim
25 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 19 wherein the inorganic binder is selected from the group consisting of silica, alumina, and aluminosilicates.
Claim 23
Dependent Claim
51 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 14 wherein said contacting occurs at a temperature of from 450° C. to 550° C.; an LHSV of from 0.3 to 5; a pressure of from 50 psig to 200 psig; and an H 2 /HC ratio of from 2:1 to 6:1.
Claim 24
Independent Claim
44 words
A method of reforming alkylcyclopentanes to produce aromatics comprising contacting said alkylcyclopentanes with a catalyst comprising: (a) a type L zeolite; (b) at least one Group VIII metal; and (c) an alkaline earth metal selected from the group consisting of barium, strontium and calcium.
Claim 25
Independent Claim
44 words
A method of reforming alkylcyclopentanes to produce aromatics comprising contacting said alkylcyclopentanes with a catalyst comprising: (a) a type L zeolite; (b) at least one Group VIII metal; and (c) an alkaline earth metal selected from the group consisting of barium, strontium and calcium.
Claim 26
Dependent Claim
24 words
A method of reforming alkylcyclopentanes according to claim 22 wherein said alkaline earth metal is barium and wherein said Group VIII metal is platinum.
Claim 27
Dependent Claim
28 words
A method of reforming alkylcyclopentanes according to claim 23 wherein said catalyst has from 0.1% to 5% by weight platinum and from 0.1% to 35% by weight barium.
Claim 28
Dependent Claim
28 words
A method of reforming alkylcyclopentanes according to claim 24 wherein said catalyst has from 0.1% to 1.5% by weight platinum and from 0.1% to 20% by weight barium.
Claim 29
Dependent Claim
25 words
A method of reforming alkylcyclopentanes according to claim 25 wherein the majority of the crystals of said type L zeolite are larger than 500 Angstroms.
Claim 30
Dependent Claim
25 words
A method of reforming alkylcyclopentanes according to claim 26 wherein the majority of the crystals of said type L zeolite are larger than 1000 Angstroms.
Claim 31
Dependent Claim
26 words
A method of reforming alkylcyclopentanes according to claim 27 wherein at least 80% of the crystals of said type L zeolite are larger than 1000 Angstroms.
Claim 32
Dependent Claim
39 words
A method of reforming alkylcyclopentanes according to claim 28 wherein said catalyst comprises: (a) a type L zeolite containing from 0.1% to 1.5% by weight platinum and from 1% to 20% by weight barium; and (b) an inorganic binder.
Claim 33
Dependent Claim
24 words
A method of reforming alkylcyclopentanes according to claim 29 wherein the inorganic binder is selected from the group consisting of silica, alumina, and aluminosilicates.
Claim 34
Dependent Claim
50 words
A method of reforming alkylcyclopentanes according to claim 30 wherein said contacting occurs at a temperature of from 400° C. to 600° C.; an LHSV of from 0.1 to 10; a pressure of from 1 atmosphere to 500 psig; and an H 2 /HC ratio of from 0 to 20:1.
Claim 35
Dependent Claim
48 words
A method of reforming alkylcyclopentanes according to claim 24 wherein said contacting occurs at a temperature of from 450° C. to 550° C.; an LHSV of from 0.3 to 5; a pressure of 50 to 200 psig; and an H 2 /HC ratio of from 2:1 to 6:1.
Claim 36
Independent Claim
105 words
A method of dehydrocyclizing acyclic hydrocarbons comprising contacting said hydrocarbons with a catalyst at a temperature of from 450° C. to 550° C.; a pressure of 50 to 200 psig; an LHSV of from 0.3 to 5; and an H 2 /HC ratio of from 2:1 to 6:1; wherein said catalyst comprises: (a) a type L zeolite containing from 0.1% to 1.5% by weight platinum and from 1% to 20% by weight barium; wherein at least 80% of the crystals of said type L zeolite are larger than 1000 Angstroms; and (b) an inorganic binder selected from the group consisting of silica, alumina, and aluminosilicates.
Claim 37
Independent Claim
105 words
A method of dehydrocyclizing acyclic hydrocarbons comprising contacting said hydrocarbons with a catalyst at a temperature of from 450° C. to 550° C.; a pressure of 50 to 200 psig; an LHSV of from 0.3 to 5; and an H 2 /HC ratio of from 2:1 to 6:1; wherein said catalyst comprises: (a) a type L zeolite containing from 0.1% to 1.5% by weight platinum and from 1% to 20% by weight barium; wherein at least 80% of the crystals of said type L zeolite are larger than 1000 Angstroms; and (b) an inorganic binder selected from the group consisting of silica, alumina, and aluminosilicates.
Claim 38
Independent Claim
88 words
A method of dehydrocyclizing acyclic hydrocarbons comprising contacting said hydrocarbons with a catalyst at a temperature of from 450° C. to 550° C.; an LHSV of from 0.3 to 5; a pressure of from 50 psig to 200 psig; and an H 2 /HC ratio of from 2:1 to 6:1; wherein said catalyst consists essentially of a type L zeolite and an organic oxide binder wherein said type L zeolite contains an alkali metal, from 0.1% to 5% by weight platinum and 0.1% to 35% by weight barium.
Claim 39
Independent Claim
88 words
A method of dehydrocyclizing acyclic hydrocarbons comprising contacting said hydrocarbons with a catalyst at a temperature of from 450° C. to 550° C.; an LHSV of from 0.3 to 5; a pressure of from 50 psig to 200 psig; and an H 2 /HC ratio of from 2:1 to 6:1; wherein said catalyst consists essentially of a type L zeolite and an organic oxide binder wherein said type L zeolite contains an alkali metal, from 0.1% to 5% by weight platinum and 0.1% to 35% by weight barium.
Claim 40
Dependent Claim
29 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 34 wherein said catalyst has from 0.1% to 1.5% by weight platinum and from 1% to 20% by weight barium.
Claim 41
Dependent Claim
26 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 35 wherein the majority of the crystals of said type L zeolite are larger than 500 Angstroms.
Claim 42
Dependent Claim
26 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 36 wherein the majority of the crystals of said type L zeolite are larger than 1000 Angstroms.
Claim 43
Dependent Claim
27 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 37 wherein at least 80% of the crystals of said type L zeolite are larger than 1000 Angstroms.
Claim 44
Dependent Claim
25 words
A method of dehydrocyclizing acyclic hydrocarbons according to claim 38 wherein the inorganic binder is selected from the group consisting of silica, alumina, and aluminosilicates.
Claim 45
Independent Claim
43 words
A method of reforming hydrocarbons comprising contacting said hydrocarbons with a catalyst consisting essentially of: (a) a type L zeolite; (b) at least one Group VIII metal; and (c) an alkaline earth metal selected from the group consisting of barium, strontium and calcium.
Claim 46
Independent Claim
43 words
A method of reforming hydrocarbons comprising contacting said hydrocarbons with a catalyst consisting essentially of: (a) a type L zeolite; (b) at least one Group VIII metal; and (c) an alkaline earth metal selected from the group consisting of barium, strontium and calcium.
Claim 47
Dependent Claim
24 words
A method of reforming hydrocarbons according to claim 40 wherein said alkaline earth metal is barium and wherein said Group VIII metal is platinum.
Claim 48
Dependent Claim
28 words
A method of reforming hydrocarbons according to claim 41 wherein said catalyst has from 0.1% to 5% by weight platinum and from 0.1% to 35% by weight barium.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |