US4510260A
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US
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Self-promoted molybdenum and tungsten sulfide hydrotreating catalysts from bis(tetrathiometallate) precursors
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1983-07-29
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Granted: 1985-04-09
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Expires: 2003-07-29
Abstract
Abstract Self-promoted molybdenum and tungsten sulfide hydrotreating catalyst are formed by heating one or more carbon-containing, bis(tetrathiometallate) catalyst precursor hydrogen with a supported, self-promoted catalyst salts selected from the group consisting of (NR4)2[M(WS4)2], (NR4)x[M(MoS4)2] and mixtures thereof wherein R is one or more alkyl groups, aryl groups or mixture thereof, wherein promoter metal M is convalently bound in the anion and is Ni, Co or Fe and wherein x is 2 if M is Ni and x is 3 if M is Co or Fe in a non-oxidizing atmosphere in the presence of sulfur hydrogen, and hydrocarbon.
Inventors
- 👤 Edward I. Stiefel
- 👤 Wie-Hin Pan
- 👤 Russell R. Chianelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:30
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J27/00; B01J27/02; B01J27/04; B01J27/047; B01J27/049; B01J31/00; B01J31/02; B01J31/0234; B01J31/0235; B01J31/0239; B01J31/0254; B01J31/26; B01J31/34
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
132 words
A self-promoted catalyst formed by heating one or more carbon-containing, bis(tetrathiometallate) catalyst precursor salts selected from the group consisting of (NR 4 ) 2 [M(WS 4 ) 2 ], (NR 4 ) x [M(MoS 4 ) 2 ] and mixtures thereof, in a non-oxidizing atmosphere in the presence of sulfur and hydrogen at elevated temperature for a time sufficient to form said catalyst, wherein (NR 4 ) is a carbon-containing, substituted ammonium cation and R is selected from the group consisting of (a) alkyl group, aryl group and mixture thereof and (b) mixtures of (a) with hydrogen, wherein promoter metal M is covalently bound in the anion and is Ni, Co or Fe and wherein x is 2 if M is Ni and x is i3 if M is Co or Fe.
Claim 2
Dependent Claim
132 words
A self-promoted catalyst formed by heating one or more carbon-containing, bis(tetrathiometallate) catalyst precursor salts selected from the group consisting of (NR 4 ) 2 [M(WS 4 ) 2 ], (NR 4 ) x [M(MoS 4 ) 2 ] and mixtures thereof, in a non-oxidizing atmosphere in the presence of sulfur and hydrogen at elevated temperature for a time sufficient to form said catalyst, wherein (NR 4 ) is a carbon-containing, substituted ammonium cation and R is selected from the group consisting of (a) alkyl group, aryl group and mixture thereof and (b) mixtures of (a) with hydrogen, wherein promoter metal M is covalently bound in the anion and is Ni, Co or Fe and wherein x is 2 if M is Ni and x is i3 if M is Co or Fe.
Claim 3
Dependent Claim
16 words
The catalyst of claim 1 wherein said catalyst is formed in the presence of excess sulfur.
Claim 4
Dependent Claim
15 words
The catalyst of claim 2 wherein said elevated temperature is at least about 150° C.
Claim 5
Dependent Claim
18 words
The catalyst of claim 3 wherein said catalyst is formed in the presence of one or more hydrocarbons.
Claim 6
Dependent Claim
16 words
The catalyst of claim 4 formed at an elevated temperature of at least about 200° C.
Claim 7
Dependent Claim
20 words
The catalyst of claim 5 wherein said excess sulfur is in the form of one or more sulfur bearing compounds.
Claim 8
Dependent Claim
16 words
The catalyst of claim 6 wherein substituted ammonium cation (NR 4 ) contains only alkyl groups.
Claim 9
Dependent Claim
19 words
The catalyst of claim 7 wherein said non-oxidizing atmosphere comprises a mixture of H 2 and H 2 S.
Claim 10
Dependent Claim
162 words
A self-promoted catalyst formed by heating one or more carbon-containing, bis(tetrathiometallate) catalyst precursor salts selected from the group consisting of (NR 4 ) 2 [M(WS 4 ) 2 ], (NR 4 ) x [M(MoS 4 ) 2 ] and mixtures thereof, in a non-oxidizing atmosphere in the presence of sulfur and hydrogen at a temperature above about 150° C. for a time sufficient to form said catalyst, wherein (NR 4 ) is a carbon-containing, substituted ammonium cation and R is selected from the group consisting of (a) alkyl group, aryl group and mixture thereof and (b) mixtures of (a) with hydrogen, wherein promoter metal M is covalently bound in the anion and is Ni, Co or Fe and wherein x is 2 if M is Ni and x is 3 if M is Co or Fe and wherein promoter metal M is tetracoordinated with four sulfur atoms with each of the two tetrathiometallate groups providing two of the said four sulfur atoms.
Claim 11
Dependent Claim
162 words
A self-promoted catalyst formed by heating one or more carbon-containing, bis(tetrathiometallate) catalyst precursor salts selected from the group consisting of (NR 4 ) 2 [M(WS 4 ) 2 ], (NR 4 ) x [M(MoS 4 ) 2 ] and mixtures thereof, in a non-oxidizing atmosphere in the presence of sulfur and hydrogen at a temperature above about 150° C. for a time sufficient to form said catalyst, wherein (NR 4 ) is a carbon-containing, substituted ammonium cation and R is selected from the group consisting of (a) alkyl group, aryl group and mixture thereof and (b) mixtures of (a) with hydrogen, wherein promoter metal M is covalently bound in the anion and is Ni, Co or Fe and wherein x is 2 if M is Ni and x is 3 if M is Co or Fe and wherein promoter metal M is tetracoordinated with four sulfur atoms with each of the two tetrathiometallate groups providing two of the said four sulfur atoms.
Claim 12
Dependent Claim
16 words
The catalyst of claim 9 wherein said catalyst is formed in the presence of excess sulfur.
Claim 13
Dependent Claim
18 words
The catalyst of claim 10 wherein said catalyst is formed in the presence of one or more hydrocarbons.
Claim 14
Dependent Claim
16 words
The catalyst of claim 11 formed at an elevated temperature of at least about 200° C.
Claim 15
Dependent Claim
20 words
The catalyst of claim 12 wherein said excess sulfur is in the form of one or more sulfur bearing compounds.
Claim 16
Dependent Claim
16 words
The catalyst of claim 13 wherein substituted ammonium cation (NR 4 ) contains only alkyl groups.
Claim 17
Dependent Claim
19 words
The catalyst of claim 14 wherein said non-oxidizing atmosphere comprises a mixture of H 2 and H 2 S.
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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) | 1988-04-08 | 1988-10-08 | 1989-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-08 | 1992-10-08 | 1993-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-08 | 1996-10-08 | 1997-04-09 | $7700.00 | Window Closed / Lapsed |