Hydroprocessing co-catalyst compositions and methods of introduction thereof into hydroprocessing units

Patent metadata

Field	Value
Publication number	US-9687823-B2
Application number	US-201213715943-A
Country	US
Kind code	B2
Filing date	Dec 14, 2012
Priority date	Dec 14, 2012
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A hydroprocessing co-catalyst composition may comprise in an embodiment a first component comprising co-catalyst particles and a liquid carrier, and a second component comprising a dispersant and a dispersant diluent. The co-catalyst particles may be in the micron size range, and the dispersant may promote dispersion of the co-catalyst particles in materials such as the liquid carrier, the dispersant diluent, and combinations thereof. Methods of introducing a hydroprocessing co-catalyst composition into a hydroprocessing system are also disclosed.

First claim

What is claimed is:

1. A hydroprocessing co-catalyst composition, consisting essentially of:
a composition A consisting essentially of co-catalyst particles having a mean particle size between about 2 microns and 100 microns dispersed in a liquid carrier comprising oil; and
a composition B comprising a dispersant and a dispersant diluent, wherein the dispersant is selected from the group consisting of polyisobutylene succinimide, carboxylic acids, dicarboxylic acids, and combinations thereof; wherein:
the co-catalyst particles are suspensible in a mixture of composition A and composition B,
the liquid carrier comprising oil has a boiling range from about 350° F. to 1125° F.,
composition A comprises from about 5 wt. % to 50 wt. % of the co-catalyst particles and from about 50 wt. % to 95 wt. % of the liquid carrier comprising oil.

2. The hydroprocessing co-catalyst composition of claim 1 , wherein composition A is contained in a first vessel, and composition B is contained in a second vessel.

3. The hydroprocessing co-catalyst composition of claim 1 , wherein composition A is in admixture with composition B.

4. The hydroprocessing co-catalyst composition of claim 3 , wherein the hydroprocessing co-catalyst composition consisting essentially of composition A and composition B comprises a slurry having a viscosity in the range from about 100 centipoise to 3000 centipoise at a temperature of about 70° F.

5. The hydroprocessing co-catalyst composition of claim 3 , comprising from about 2 wt. % to 60 wt. % of the dispersant.

6. The hydroprocessing co-catalyst composition of claim 1 , wherein the co-catalyst particles have a mean particle size between about 4 microns and 40 microns.

7. The hydroprocessing co-catalyst composition of claim 1 , wherein the co-catalyst particles comprise a support comprising a material selected from the group consisting of alumina, aluminosilicates, silica, boria, magnesia, titania, and combinations thereof.

8. The hydroprocessing co-catalyst composition of claim 1 , wherein the liquid carrier comprising oil is selected from the group consisting of vacuum gas oil, light vacuum gas oil, heavy vacuum gas oil, lube oil base stock, heavy diesel, and combinations thereof.

9. The hydroprocessing co-catalyst composition of claim 1 , wherein the dispersant further comprises oleic acid.

10. The hydroprocessing co-catalyst composition of claim 1 , wherein the co-catalyst particles are hydrophilic.

11. A hydroprocessing co-catalyst composition, consisting essentially of:
a liquid carrier comprising oil having a boiling range from about 350° F. to 1125° F.;
co-catalyst particles having a mean particle size between about 2 microns and 100 microns;
a dispersant selected from the group consisting of polyisobutylene succinimide, carboxylic acids, dicarboxylic acids, and combinations thereof; and
a dispersant diluent; wherein
the hydroprocessing co-catalyst composition comprises from about 3 wt. % to 50 wt. % of the co-catalyst particles and from about 50 wt. % to 95 wt. % of the liquid carrier comprising oil, and
the co-catalyst particles are suspensible in a mixture of the liquid carrier comprising oil, the dispersant, and the dispersant diluent.

12. The hydroprocessing co-catalyst composition of claim 11 , wherein:
the liquid carrier comprising oil is miscible with the dispersant diluent to form a single phase homogeneous liquid, and
the hydroprocessing co-catalyst composition comprises a suspension of the co-catalyst particles dispersed in the homogeneous liquid.

13. The hydroprocessing co-catalyst composition of claim 11 , wherein:
each of the liquid carrier and the dispersant diluent comprises oil, and
the co-catalyst particles comprise a support comprising a material selected from the group consisting of alumina, aluminosilicates, silica, boria, magnesia, titania, and combinations thereof.

14. The hydroprocessing co-catalyst composition of claim 11 , wherein the liquid carrier comprising oil is selected from the group consisting of vacuum gas oil, light vacuum gas oil, heavy vacuum gas oil, lube oil base stock, heavy diesel, and combinations thereof.

15. A hydroprocessing co-catalyst composition prepared by a method consisting essentially of:
providing a composition A consisting essentially of co-catalyst particles having a mean particle size between about 2 microns and 100 microns and a liquid carrier comprising oil having a boiling range from about 350° F. to 1125° F., wherein the co-catalyst particles are suspensible in the liquid carrier comprising oil, and composition A comprises from about 5 wt. % to 50 wt. % of the co-catalyst particles and from about 50 wt. % to 95 wt. % of the liquid carrier comprising oil;
providing a composition B comprising a dispersant selected from the group consisting of polyisobutylene succinimide, carboxylic acids, dicarboxylic acids, and combinations thereof and a dispersant diluent; and
combining composition A with composition B to provide a suspension of the co-catalyst particles to form the hydroprocessing co-catalyst composition.

16. The hydroprocessing co-catalyst composition of claim 15 , wherein:
the co-catalyst particles have a mean particle size between about 2 microns and 100 microns, and
the co-catalyst particles comprise a support comprising a material selected from the group consisting of alumina, aluminosilicates, silica, boria, magnesia, titania, and combinations thereof.

17. The hydroprocessing co-catalyst composition of claim 15 , wherein:
the co-catalyst particles have a mean particle size between about 4 microns and 40 microns and,
the co-catalyst particles are hydrophilic.

18. The hydroprocessing co-catalyst composition of claim 15 , wherein the liquid carrier comprising oil is selected from the group consisting of vacuum gas oil, light vacuum gas oil, heavy vacuum gas oil, lube oil base stock, heavy diesel, and combinations thereof.

19. The hydroprocessing co-catalyst composition of claim 15 , wherein:
the liquid carrier comprising oil is miscible with composition B to form a single phase homogeneous liquid, and
the hydroprocessing co-catalyst composition comprises a suspension of the co-catalyst particles dispersed in the homogeneous liquid.

Assignees

• Chevron Usa Inc

Inventors

• Chabot Julie
• Kou Bo
• Kuperman Alexander

Classifications

• B01J23/755

  Nickel · CPC title

• B01J37/04

  Mixing {(B01J37/0009, B01J37/0018 take precedence)} · CPC title

• B01J21/10

  Magnesium; Oxides or hydroxides thereof · CPC title

• B01J21/02

  Boron or aluminium; Oxides or hydroxides thereof · CPC title

• B01J31/0247

  Imides, amides or imidates (R-C=NR(OR)) · CPC title