# US 4,395,327 A · Hydrotreating process

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- Number: US 4,395,327 A
- Document ID: US4395327A
- Status: Granted
- Kind: A
- Application number: 06/408,953
- Filed: 1982-08-17
- Granted: 1983-07-26
- Earliest claimed: 1982-08-17
- Assignees: Mobil Oil Corporation
- Inventors: Bruce P. Pelrine
- Web page: https://patentgrep.com/patent/US4395327A

## CPC

- B01J 29/78: containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J 29/76: Iron group metals or copper
- C10G 2400/10: Lubricating oil
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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

Lubricating oils of improved quality are prepared by hydrotreating a lubricant base stock in the presence of a hydrotreating catalyst comprising zeolite ZSM-39 and a hydrogenation component.

## Claims

### Claim 1

A process for producing a lubricating oil of improved properties which comprises hydrotreating a lubricating oil base stock in the presence of a hydrotreating catalyst comprising zeolite ZSM-39.

### Claim 2 (depends on 1)

A process according to claim 1 in which the hydrotreating catalyst comprises zeolite ZSM-39 and a hydrogenation component comprising a metal component of Group VIB, VIIB or VIII.

### Claim 3 (depends on 2)

A process according to claim 2 in which the metal component is selected from nickel, cobalt, molybdenum, tungsten or combinations thereof.

### Claim 4 (depends on 1)

A process according to claim 1 in which the lubricating oil base stock is a dewaxed lubricating oil base stock.

### Claim 5 (depends on 4)

A process according to claim 4 in which the lubricating oil base stock is a dewaxed, solvent-extracted lubricating oil base stock.

### Claim 6 (depends on 1)

A process according to claim 1 in which the lubricating oil base stock is hydrotreated at a temperature of from 200.degree. to 600.degree. C., a pressure of at least 300 kPa and a space velocity of 0.1 to 20.