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US4435311A
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Continuous reactivation of AMS-1B-containing catalyst systems
Assignee: BP Corp North America Inc
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Filing: 1982-09-24
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Granted: 1984-03-06
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Expires: 2002-09-24
Abstract
Abstract A process to reactivate a noble metal-containing AMS-1B crystalline borosilicate catalyst comprising contacting such catalyst with water.
Inventors
- 👤 David L. Sikkenga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:37
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3335; C07C5/3337; B; B01; B01J; B01J29/00; B01J29/90; C07C5/373; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
53 words
A process to reactivate a noble metal-containing AMS-1B crystalline borosilicate comprising contacting such catalyst with water at reactivation conditions comprising a temperature of about 100° to about 750° C., a pressure of about 0.1 to about 100 atmospheres and a weight hourly space velocity of about 0.1 to about 40 hr -1 .
Claim 2
Dependent Claim
53 words
A process to reactivate a noble metal-containing AMS-1B crystalline borosilicate comprising contacting such catalyst with water at reactivation conditions comprising a temperature of about 100° to about 750° C., a pressure of about 0.1 to about 100 atmospheres and a weight hourly space velocity of about 0.1 to about 40 hr -1 .
Claim 3
Dependent Claim
21 words
The process of claim 1 wherein the AMS-1B crystalline borosilicate catalyst is contacted with water vapor in a compatible carrier gas.
Claim 4
Dependent Claim
16 words
The process of claim 2 wherein the carrier gas is hydrogen, nitrogen, helium or a hydrocarbon.
Claim 5
Dependent Claim
13 words
The process of claim 1 wherein the noble metal is platinum or palladium.
Claim 6
Dependent Claim
11 words
The process of claim 1 wherein the noble metal is platinum.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein a hydrocarbon is converted during reactivation.
Claim 8
Dependent Claim
20 words
The process of claim 6 wherein the hydrocarbon is an alkane or alkene having up to about 10 carbon atoms.
Claim 9
Dependent Claim
20 words
The process of claim 6 wherein the hydrocarbon is ethane, propane, n-butane, isobutane, or normal butene or a mixture thereof.
Claim 10
Dependent Claim
14 words
The process of claim 6 wherein the hydrocarbon predominantly is a C 4 hydrocarbon.
Claim 11
Dependent Claim
13 words
The process of claim 6 wherein the hydrocarbon substantially is n-butane or isobutane.
Claim 12
Dependent Claim
22 words
The process of claim 2 wherein water vapor comprises from about 0.01 to about 20 vol.% of total vapor contacting the catalyst.
Claim 13
Dependent Claim
21 words
The process of claim 11 wherein water vapor comprises about 0.1 to about 5 vol.% of total vapor contacting the catalyst.
Claim 14
Dependent Claim
20 words
The process of claim 1 wherein the AMS-1B crystalline borosilicate composition is incorporated within an alumina, silica or silica-alumina matrix.
Claim 15
Dependent Claim
22 words
The process of claim 13 wherein the AMS-1B crystalline borosilicate content in the matrix ranges from about 10 to about 95 wt.%.
Claim 16
Dependent Claim
22 words
The process of claim 14 wherein the AMS-1B crystalline borosilicate content in the matrix ranges from about 40 to about 80 wt.%.
Claim 17
Dependent Claim
50 words
The process of claim 6 wherein hydrocarbon is converted at about 400° to about 650° C. at a pressure of about 0.2 to about 10 atmospheres with a hydrogen/butane ratio of 0 to about 10 at a weight hourly space velocity of about 0.1 to about 25 hr -1 .
Claim 18
Dependent Claim
51 words
The process of claim 10 wherein n-butane is converted at about 500° to about 600° C. at a pressure of about 0.3 to about 3 atmospheres with a hydrogen/butane ratio of about 0.5 to about 6 and a weight hourly space velocity of about 1 to about 6 hr 1 .
Claim 19
Dependent Claim
19 words
The process of claim 1 wherein the noble metal is ruthenium, osmium, rhodium, iridium, palladium, platinum or mixtures thereof.
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) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |