# US 8,772,196 B2 · Aromatics hydrogenation catalyst and a method of making and using such catalyst

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- Number: US 8,772,196 B2
- Document ID: US8772196B2
- Status: Granted
- Kind: B2
- Application number: 12/197,386
- Filed: 2008-08-25
- Published: 2009-03-05
- Granted: 2014-07-08
- Earliest claimed: 2007-08-27
- Assignees: Shell Oil Company
- Applicants: Russell Craig Ackerman; Christian Gabriel Michel; John Anthony Smegal; Johannes Anthonius Robert Van Veen
- Inventors: Russell Craig Ackerman; Christian Gabriel Michel; John Anthony Smegal; Johannes Anthonius Robert Van Veen
- Web page: https://patentgrep.com/patent/US8772196B2

## CPC

- B01J 21/12: Silica and alumina
- B01J 23/44: Palladium
- B01J 35/615: {100-500 m2/g}
- B01J 35/635: {0.5-1.0 ml/g}
- B01J 35/638: {more than 1.0 ml/g}
- B01J 35/647: {2-50 nm}
- B01J 35/651: {50-500 nm}
- B01J 37/0009: {Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst}
- C07C 5/10: of aromatic six-membered rings
- C10G 45/46: characterised by the catalyst used
- C10G 45/52: containing platinum group metals or compounds thereof
- B01J 23/42: Platinum
- B01J 35/40: characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77)
- B01J 35/70: characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00)
- B01J 35/80: characterised by their amorphous structures
- B01J 2235/05: Nuclear magnetic resonance [NMR]
- B01J 2235/15: X-ray diffraction
- C07C 2523/44: Palladium
- C10G 2300/1096: Aromatics or polyaromatics
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- 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

## Abstract

Disclosed is a composition useful in the saturation of aromatics contained in a hydrocarbon feedstock. The composition includes a support composition having a high macroporosity of greater than 51 percent. The support composition comprises an amorphous silica-alumina having unique properties.

## Claims

### Claim 1

A composition, comprising: a support composition having a macroporosity greater than 51%, a surface area in the range of from 150 m2/gm to 400 m2/gm and comprising amorphous silica-alumina, wherein said amorphous silica-alumina has a silica content in the range of from 10 to 90 weight percent and an alumina content in the range of from 10 to 90 weight percent, and wherein said amorphous silica-alumina exhibits the characteristic of a strong aluminum NMR penta-coordinated peak representing greater than 30% of the aluminum of said amorphous silica-alumina.

### Claim 2 (depends on 1)

A composition as recited in claim 1, wherein said support composition has a mesoporostiy greater than 30%.

### Claim 3 (depends on 2)

A composition as recited in claim 2, wherein the percentage of the total pore volume of said support composition contained in its macropores having a pore diameter in the range of from 350 Å to 2000 Å is greater than 40%.

### Claim 4 (depends on 3)

A composition as recited in claim 3, wherein the percentage of the total pore volume of said support composition contained in the macropores having a pore diameter greater than 5000 Å is less than 4%.

### Claim 5 (depends on 4)

A composition as recited in claim 4, wherein the percentage of the total pore volume of said support composition contained in the smaller pores having a pore diameter of less than 70 Å is less than 10%.

### Claim 6 (depends on 5)

A composition as recited in claim 5, wherein said amorphous silica-alumina has an A/B ratio exceeding 2.2, wherein A is the pore volume contained in the pores of said amorphous silica-alumina having a pore diameter less than 2150 Å, and B is the pore volume contained in the pores of said amorphous silica-alumina having a pore diameter of less than 210 Å.

### Claim 7 (depends on 6)

A composition as recited in claim 6, further comprising: a noble metal selected from the group consisting of platinum, palladium and a combination thereof.

### Claim 8 (depends on 7)

A composition as recited in claim 7, wherein said amorphous silica-alumina is prepared by a pH swing method.

### Claim 9 (depends on 8)

A composition as recited in claim 8, wherein said noble metal is present in said composition in an amount in the range of from 0.01 wt. % to 5 wt. % with the weight percent being based on the total weight of said composition and calculated as elemental metal.

### Claim 10 (depends on 9)

A composition as recited in claim 9, wherein said noble metal includes both palladium and platinum present in said composition in amounts such that the weight ratio of elemental palladium-to-platinum is in the range of from 1:10 to 10:1.

### Claim 11 (depends on 10)

A composition as recited in claim 10, wherein said composition has a total surface area that is in the range of from 200 m2/gm to 350 m2/gm.

### Claim 12 (depends on 6)

A composition as recited in claim 6, wherein the A/B ratio exceeds 2.4.

### Claim 13 (depends on 1)

A composition as recited in claim 1, wherein said support composition has a mesoporostiy greater than 35%.

### Claim 14 (depends on 6)

A composition as recited in claim 6, wherein the A/B ratio exceeds 2.5.

### Claim 15 (depends on 13)

A composition as recited in claim 13, wherein said support composition has a mesoporostiy greater than 40%.