# US 2014/0151266 A1 · Method for making a hydroprocessing catalyst

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- Number: US 2014/0151266 A1
- Document ID: US20140151266A1
- Status: Published application
- Kind: A1
- Application number: 14/100,779
- Filed: 2013-12-09
- Published: 2014-06-05
- Earliest claimed: 2009-12-06
- Assignees: Chevron U.S.A. Inc.
- Inventors: Bi-Zeng ZHAN
- Web page: https://patentgrep.com/patent/US20140151266A1

## CPC

- C10G 47/20: the catalyst containing other metals or compounds thereof
- B01J 29/166: {Y-type faujasite}
- B01J 37/0201: {Impregnation}
- B01J 37/04: Mixing {(B01J37/0009, B01J37/0018 take precedence)}
- C10G 45/06: containing nickel or cobalt metal, or compounds thereof
- C10G 45/10: containing platinum group metals or compounds thereof
- C10G 45/12: containing crystalline alumino-silicates, e.g. molecular sieves
- C10G 45/62: containing platinum group metals or compounds thereof
- C10G 45/64: containing crystalline alumino-silicates, e.g. molecular sieves
- C10G 47/14: the catalyst containing platinum group metals or compounds thereof
- C10G 47/16: Crystalline alumino-silicate carriers
- C10G 47/18: the catalyst containing platinum group metals or compounds thereof
- C10G 49/02: characterised by the catalyst used
- C10G 49/04: containing nickel, cobalt, chromium, molybdenum, or tungsten metals, or compounds thereof
- C10G 49/06: containing platinum group metals or compounds thereof
- C10G 49/08: containing crystalline alumino-silicates, e.g. molecular sieves
- B01J 35/50: characterised by their shape or configuration
- B01J 2235/00: Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
- B01J 2235/15: X-ray diffraction
- 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

The present invention is directed to a method for making a catalyst for hydroprocessing a carbonaceous feedstock under hydroprocessing conditions, and the use of that catalyst. More particularly, the present invention is directed to methods for inhibiting rapid decomposition of ammonium nitrate during calcination of the catalyst following metal impregnation, wherein ammonium nitrate is formed when a nitrate-containing composition and an ammonium-containing component is used in the deposition of metal onto the catalyst.

## Claims

### Claim 1

A method for hydroprocessing a carbonaceous feedstock, comprising contacting the carbonaceous feedstock with a sulfided hydroprocessing catalyst and hydrogen under hydroprocesssing conditions, the hydroprocessing catalyst comprising at least one metal deposited on a catalyst support, wherein deposition of the metal is achieved using an impregnation solution comprising a nitrate of the at least one metal, which impregnation solution has a pH between 1 and 5.5, inclusive.

### Claim 2 (depends on 1)

The method of claim 1, wherein the sulfided hydroprocessing catalyst further comprises at least one molecular sieve.

### Claim 3 (depends on 2)

The method of claim 2, wherein the molecular sieve is a Y zeolite with a unit cell size of between 24.15 Å and 24.55 Å.

### Claim 4 (depends on 2)

The method of claim 2, wherein the at least one molecular sieve is a Y zeolite having a silica-to-alumina ratio of greater than 5, a micropore volume of from 0.15 mL/g to 0.27 mL/g, a BET surface area of from 700 m2/g to 825 m2/g, and a unit cell size of from 24.15 Å to 24.55 Å.

### Claim 5 (depends on 1)

The method of claim 1, wherein the sulfided hydroprocessing catalyst further comprises a Y zeolite having a silica-to-alumina ratio of greater than 10, a micropore volume of from 0.15 mL/g to 0.27 mL/g, a BET surface area of from 700 m2/g to 825 m2/g, and a unit cell size of from 24.15 Å to 24.35 Å, and a low-acidity, highly dealuminated ultrastable Y zeolite having an Alpha value of less than about 5 and Brønsted acidity of from 1 to 40 micro-mole/g.

### Claim 6 (depends on 1)

The method of claim 1, wherein the impregnation solution further comprises a modifying agent is selected from the group consisting of compounds represented by structures (1) through (4), and condensated forms thereof:
wherein:
(1) R1, R2 and R3 are independently selected from the group consisting of hydrogen; hydroxyl; methyl; amine; and linear or branched, substituted or unsubstituted C1-C3 alkyl groups, C1-C3 alkenyl groups, C1-C3 hydroxyalkyl groups, C1-C3 alkoxyalkyl groups, C1-C3 aminoalkyl groups, C1-C3 oxoalkyl groups, C1-C3 carboxyalkyl groups, C1-C3 aminocarboxyalkyl groups and C1-C3 hydroxycarboxyalkyl groups;
(2) R4 through R10 are independently selected from the group consisting of hydrogen; hydroxyl; and linear or branched, substituted or unsubstituted C2-C3 carboxyalkyl groups; and
(3) R11 is selected from the group consisting of linear or branched, saturated and unsaturated, substituted or unsubstituted C1-C3 alkyl groups, C1-C3 hydroxyalkyl groups, and C1-C3 oxoalkyl groups.

### Claim 7 (depends on 1)

The method of claim 1, wherein the modifying agent selected from the group consisting of N,N′-bis(2-aminoethyl)-1,2-ethane-diamine, 2-amino-3-(1H-indol-3-yl)-propanoic acid, benzaldehyde, [[(carboxymethyl)imino]bis(ethylenenitrilo)]-tetra-acetic acid, 1,2-cyclohexanediamine, 2-hydroxybenzoic acid, thiocyanate, thiosulfate, thiourea, pyridine, and quinoline.

### Claim 8 (depends on 1)

The method of claim 1, wherein the at least one metal is selected from the group consisting of elements from Group 6 and Groups 8 through 10 of the Periodic Table.

### Claim 9 (depends on 8)

The method of claim 8, wherein the at least one metal is selected from the group consisting of nickel (Ni), palladium (Pd), platinum (Pt), cobalt (Co), iron (Fe), chromium (Cr), molybdenum (Mo), tungsten (W), and mixtures thereof.

### Claim 10 (depends on 1)

The method of claim 1, wherein the hydroprocessing conditions comprise a temperature in the range of 175-485° C., hydrogen pressures in the range of 5 to 300 bar, and LHSV in the range of 0.1-30 h−1.

### Claim 11 (depends on 1)

The method of claim 1, wherein the hydroprocessing conditions comprise a reaction temperature between 204-482° C., a pressure between 3.5-34.6 Mpa, a feed rate (LHSV) of 0.5 hr−1 to 20 hr−1 (v/v), and an overall hydrogen consumption of 53.4 to 356 m3 H2 per m3 of liquid hydrocarbon feed.

### Claim 12 (depends on 1)

The method of claim 1, wherein pH value of the impregnation solution is adjusted to between 1 and 5.5, inclusive, by a base.

### Claim 13 (depends on 12)

The method of claim 12, wherein the base is ammonium hydroxide.