# US 8,784,647 B2 · Hydroprocessing catalysts and their production

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- Number: US 8,784,647 B2
- Document ID: US8784647B2
- Status: Granted
- Kind: B2
- Application number: 12/967,354
- Filed: 2010-12-14
- Published: 2011-08-04
- Granted: 2014-07-22
- Earliest claimed: 2009-12-18
- Assignees: ExxonMobil Research and Egineering Company
- Applicants: Chris E. Kliewer; Stuart L. Soled; Sabato Miseo; Jeffrey S. Beck
- Inventors: Chris E. Kliewer; Stuart L. Soled; Sabato Miseo; Jeffrey S. Beck
- Web page: https://patentgrep.com/patent/US8784647B2

## CPC

- C10G 45/08: in combination with chromium, molybdenum, or tungsten metals, or compounds thereof
- B01J 23/8885: {containing also molybdenum}
- B01J 27/0515: {with iron group metals or platinum group metals}
- B01J 35/30: characterised by their physical properties
- B01J 35/391: {Physical properties of the active metal ingredient}
- B01J 35/70: characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00)
- B01J 37/20: Sulfiding
- C10G 45/10: containing platinum group metals or compounds thereof
- C10G 49/04: containing nickel, cobalt, chromium, molybdenum, or tungsten metals, or compounds thereof
- C10G 49/06: containing platinum group metals or compounds thereof
- B01J 33/00: Protection of catalysts, e.g. by coating
- B01J 37/04: Mixing {(B01J37/0009, B01J37/0018 take precedence)}
- B01J 37/10: in the presence of water, e.g. steam
- B01J 37/14: with gases containing free oxygen
- B01J 2235/00: Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
- B01J 2235/30: Scanning electron microscopy; Transmission electron microscopy
- C10G 2300/202: Heteroatoms content, i.e. S, N, O, P
- C10G 2300/70: Catalyst aspects
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

## Abstract

In a process for producing a hydroprocessing catalyst, a particulate metal oxide composition comprising an oxide of at least one first metal selected from Group 6 of the Periodic Table of the Elements can be mixed with particles of a sulfide of at least one second metal selected from Groups 8 to 10 of the Periodic Table of the Elements to produce a particulate catalyst precursor. The particulate catalyst precursor can then be sulfided under conditions sufficient to at least partially convert the particulate catalyst precursor into a layered metal sulfide having defect sites associated with the second metal sulfide.

## Claims

### Claim 1

A process for producing a hydroprocessing catalyst, the process comprising:
(a) forming a reaction mixture comprising a source of a first metal oxide in a protic liquid and heating the reaction mixture under hydrothermal conditions to form a particulate metal oxide composition, the first metal oxide comprising an oxide of at least one first metal selected from Group 6 of the Periodic Table of Elements;
(b) mixing the formed particulate metal oxide composition with particles of a sulfide of at least one second metal selected from Groups 8 to 10 of the Periodic Table of the Elements to produce a particulate catalyst precursor; and
(c) sulfiding the particulate catalyst precursor under conditions sufficient to at least partially convert the components of the particulate catalyst precursor into a layered metal sulfide having defect sites associated with the second metal sulfide.

### Claim 2 (depends on 1)

The process of claim 1, wherein the at least one first metal is molybdenum and/or tungsten.

### Claim 3 (depends on 1)

The process of claim 1, wherein the particulate metal oxide composition comprises from about 55 wt % to about 60 wt % of Group 6 metal oxide(s).

### Claim 4 (depends on 1)

The process of claim 1, wherein the particulate metal oxide composition further comprises an oxide of at least one further metal selected from Groups 8 to 10 of the Periodic Table of the Elements.

### Claim 5 (depends on 4)

The process of claim 4, wherein the at least one further metal is cobalt and/or nickel.

### Claim 6 (depends on 4)

The process of claim 4, wherein the particulate metal oxide composition comprises up to about 45 wt % of Group 8 to 10 metal oxide(s).

### Claim 7 (depends on 1)

The process of claim 1, wherein the at least one second metal sulfide is nickel sulfide and/or cobalt sulfide.

### Claim 8 (depends on 1)

The process of claim 1, wherein the particulate catalyst precursor comprises from about 20 wt % to about 25 wt % of the second metal sulfide.

### Claim 9 (depends on 1)

The process of claim 1, wherein the sulfiding is conducted by heating the particulate catalyst precursor in the presence of hydrogen sulfide at a temperature from about 375° C. to about 400° C. for about 2 hours to about 4 hours.

### Claim 10 (depends on 1)

A method for hydroprocessing a hydrocarbon-containing feedstock, the method comprising:
(a) producing a hydroprocessing catalyst according to the process of claim 1; and
(b) contacting the hydrocarbon-containing feedstock with hydrogen in the presence of the hydroprocessing catalyst under conditions sufficient to hydroprocess the hydrocarbon feedstock.