Process for converting fischer-tropsch liquids and waxes into lubricant base stock and/or transportation fuels

Patent metadata

Field	Value
Publication number	US-9453169-B2
Application number	US-201314026658-A
Country	US
Kind code	B2
Filing date	Sep 13, 2013
Priority date	Sep 13, 2013
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

A process for converting Fischer-Tropsch liquids and waxes into lubricant base stock and/or transportation fuels is disclosed. The process includes the steps of feeding a Fischer-Tropsch wax to a first isomerization unit to produce an isomerized Fischer-Tropsch wax product; combining a Fischer-Tropsch liquid with the isomerized Fischer-Tropsch wax product to create a mixture of the Fischer-Tropsch liquid and the Fischer-Tropsch wax product; and feeding the mixture to a fractionation column to separate the mixture into a lubricant base stock fraction and at least one transportation fuel fraction.

First claim

The invention claimed is:

1. An apparatus for converting a Fischer-Tropsch liquid and a Fischer-Tropsch wax into lubricant base stock and/or transportation fuels, the apparatus comprising:
a source of a Fischer-Tropsch wax in upstream communication with a first conduit;
a first isomerization unit in downstream communication with the first conduit and in upstream communication with a second conduit;
a fractionation column in downstream communication with the second conduit;
a source of a Fischer-Tropsch liquid in upstream communication with the second conduit; and
a hydrocracking unit in downstream communication with the fractionation column.

2. The apparatus of claim 1 wherein the hydrocracking unit is in upstream communication with the first isomerization unit.

3. The apparatus of claim 1 wherein the hydrocracking unit is also in upstream communication with the fractionation column.

4. The apparatus of claim 1 wherein the apparatus further comprises a recycle conduit in fluid communication with an outlet and an inlet of the hydrocracking unit.

5. The apparatus of claim 1 wherein the apparatus further comprises:
a hydrotreating unit in downstream communication with the source of the Fischer-Tropsch liquid; and
a second isomerization unit in downstream communication with the hydrotreating unit, the second isomerization unit being in upstream communication with the second conduit.

6. The apparatus of claim 5 further comprising a hydrocracking unit in downstream communication with the fractionation column, wherein the hydrocracking unit is in upstream communication with the second isomerization unit.

7. The apparatus of claim 5 wherein the fractionation column is in upstream communication with the second isomerization unit.

Assignees

• Uop Llc

Inventors

• Stippich Jr Kenneth J
• Thakkar Vasant P
• Petri John A

Classifications

• C10G2300/4081

  Recycling aspects · CPC title

• C10G2300/1022

  Fischer-Tropsch products · CPC title

• C10G65/16

  including only refining steps · CPC title

• C10G2400/10

  Lubricating oil · CPC title

• C10G65/12 Primary

  including cracking steps and other hydrotreatment steps · CPC title