EP0119023A2
Expired / Lapsed
EP
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Improving catalytic activity of aluminosilicate zeolites
Assignee: BP PLC
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Filing: 1984-02-20
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Granted: —
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Expires: 2004-02-20
Abstract
Abstract The present invention relates to a method of improving catalytic activity of a zeolite by first steam treating the zeolite and then loading the zeolite so treated with a Group IIIb metal, especially gallium. It has been found that steam treatment prior to gallium loading gives a catalyst which has a higher conversion and selectivity of hydrocarbon feeds to aromatics than otherwise.
Inventors
- 👤 Clive David Telford
- 👤 Dennis Young
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 04:51
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/061
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
52 words
A process for activating an aluminosilicate loaded with a compound of a metal from Group IIIB of the Periodic Table said process comprising bringing into contact the unloaded zeolite with steam at an elevated temperature prior to loading thereof with a compound of a metal from Group IIIB of the Periodic Table.
Claim 2
Dependent Claim
52 words
A process for activating an aluminosilicate loaded with a compound of a metal from Group IIIB of the Periodic Table said process comprising bringing into contact the unloaded zeolite with steam at an elevated temperature prior to loading thereof with a compound of a metal from Group IIIB of the Periodic Table.
Claim 3
Dependent Claim
18 words
A process according to claim 1 wherein the aluminosilicate has a silica to alumina ratio greater than 5:1.
Claim 4
Dependent Claim
21 words
A process according to claims 1 or 2 wherein the Group IIIB metal is selected from aluminium, gallium, indium and thallium.
Claim 5
Dependent Claim
22 words
,4. A process according to any one of the preceeding claims wherein the compound of the Group IIIB metal is gallium oxide.
Claim 6
Dependent Claim
37 words
A process according to any one of the preceeding claims wherein the steaming step is carried out on a zeolite in which substantially all of the exchangeable metal ions have been exchanged with hydrogen or ammonium ions.
Claim 7
Dependent Claim
31 words
A process according to any one of the preceeding claims wherein the steam treatment of the zeolite is carried out using steam as such or a carrier gas stream comprising steam.
Claim 8
Dependent Claim
25 words
A process according to any one of the preceeding claims wherein the steam treatment is carried out at a pressure between 0.01 to 1.0 MPa.
Claim 9
Dependent Claim
24 words
A process according to any one of the preceeding claims wherein the steam treatment is carried out at a temperature from 300 to 750°C.
Claim 10
Dependent Claim
27 words
A process according to any one of the preceeding claims wherein the steam treatment is carried out for a duration of between 5 minutes and 200 hours.
Claim 11
Dependent Claim
39 words
A process for activating an alumina silicate loaded with a compound of a metal from Group IIIB of the Periodic Table as claimed in any one of the preceeding claims and as hereinbefore described with reference to the Examples.
References Cited (Backward Citations)
No citation records indexed.
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