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US4377468A
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Sulfur- and nitrogen-containing hydrocarbon feed hydrocracking over ZSM-20
Assignee: Mobil Oil AS
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Filing: 1981-09-18
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Granted: 1983-03-22
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Expires: 2001-09-18
Abstract
Abstract A catalyst effective in hydrotreating and hydrocracking sulfur- and nitrogen-containing hydrocarbon feeds at low pressure. The catalyst is prepared by incorporating a platinum group metal such as palladium in ZSM-20 or in dealuminized zeolite Y. Unlike most palladium catalyst, this catalyst is not poisoned by nitrogen and sulfur in the feed.
Inventors
- 👤 Rene B. La Pierre
- 👤 Robert L. Gorring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:28
CPC Classifications
C; C10; C10G; C10G49/00; C10G49/02; C10G49/08; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/10; B01J29/12; B01J29/126; C10G11/00; C10G11/02; C10G11/04; C10G11/05; C10G35/00; C10G35/04; C10G35/06; C10G35/095
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
55 words
A process for effecting catalytic hydrocracking at low pressure of a hydrocarbon charge containing sulfur- and nitrogen-containing organic compounds which comprises contacting a mixture of said charge and hydrogen with a catalyst comprising a Group VIII metal-containing synthetic crystalline zeolite ZSM-20 said Group VIII metal being present in an amount between about 0.1 and 10.0%.
Claim 2
Dependent Claim
55 words
A process for effecting catalytic hydrocracking at low pressure of a hydrocarbon charge containing sulfur- and nitrogen-containing organic compounds which comprises contacting a mixture of said charge and hydrogen with a catalyst comprising a Group VIII metal-containing synthetic crystalline zeolite ZSM-20 said Group VIII metal being present in an amount between about 0.1 and 10.0%.
Claim 3
Dependent Claim
10 words
The process of claim 1 wherein said catalyst is Pd/Mg/ZSM-20.
Claim 4
Dependent Claim
12 words
The process of claim 1 wherein said Group VIII metal is palladium.
Claim 5
Dependent Claim
60 words
The process of claim 1 wherein said zeolite as synthesized has undergone at least partial cation replacement by ion exchange with a cation or a mixture of cations selected from the group consisting of hydrogen, hydrogen precursors, rare earth metals, and metals from Groups IIA, IIIA, IVA, IB, IIB, IIIB, IVB, VIB, AND VIII of the Periodic Table of Elements.
Claim 6
Dependent Claim
11 words
The process of claim 4 wherein the replaced cation is sodium.
Claim 7
Dependent Claim
26 words
The process of claim 4 wherein said zeolite as synthesized has undergone at least partial cation replacement by ion exchange with hydrogen or hydrogen precursor cations.
Claim 8
Dependent Claim
25 words
The process of claim 4 wherein said zeolite as synthesized has undergone at least partial cation replacement by ion exchange with rare earth metal cations.
Claim 9
Dependent Claim
62 words
The process of claim 1 wherein the hydrocracking conditions include a temperature of from about 400° F. to about 1000° F., a pressure of from about 500 psig to about 3500 psig, a hydrogen/hydrocarbon ratio of from about 1000 scf/bbl to about 20,000 scf/bbl and a liquid hourly space velocity of from about 0.1 hr -1 to about 10 hr -1 .
Claim 10
Dependent Claim
57 words
The process of claim 1 wherein the hydrocracking conditions include a temperature of from about 400° F. to about 1000° F., a pressure of from about 500 psig to about 3500 psig, a hydrogen/hydrocarbon ratio of from about 1000 scf/bbl to about 20,000 scf/bbl and a contact time of from about 0.1 hour to about 10 hours.
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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) | 1986-03-21 | 1986-09-20 | 1987-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-21 | 1990-09-20 | 1991-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-21 | 1994-09-20 | 1995-03-22 | $7700.00 | Window Closed / Lapsed |