Methods for gas phase oxidative desulphurization of hydrocarbons using CuZnAl catalysts promoted with group VIB metal oxides

Patent metadata

Field	Value
Publication number	US-10882801-B2
Application number	US-201614987141-A
Country	US
Kind code	B2
Filing date	Jan 4, 2016
Priority date	Jan 4, 2016
Publication date	Jan 5, 2021
Grant date	Jan 5, 2021

Abstract

A catalytic composition is disclosed, which exhibits an X-ray amorphous oxide with a spinel formula, and crystals of ZnO, CuO, and at least one Group VIB metal oxide, and preferably, at least one acidic oxide of B, P, or Si, as well. The composition is useful in oxidative processes for removing sulfur from gaseous hydrocarbons.

First claim

We claim:

1. A catalyst composition useful in oxidative desulfurization of a sulfur containing hydrocarbon, comprising:
copper oxide in an amount ranging from 10 weight percent to 50 wt. %, zinc oxide in an amount ranging from 5 wt. % to less than 20 wt %, aluminum oxide in an amount ranging from 20 wt. % to 70 wt. %, and at least one Group VIB metal oxide promoter, in an amount up to 20 wt. % of said catalytic composition.

2. The catalytic composition of claim 1 , further comprising Mo or W.

3. The catalytic composition of claim 1 , further comprising an acidic oxide of Si, B, or P.

4. The catalytic composition of claim 1 , further comprising B 2 O 3 .

5. The catalytic composition of claim 1 , in granular form.

6. The catalytic composition of claim 1 , formed as a cylinder, a sphere, a trilobe, or a quatrolobe.

7. The catalytic composition of claim 5 , wherein granules of said composition have a diameter of from 1 mm to 4 mm.

8. The catalytic composition of claim 1 , having a specific surface area of from 10 m 2 /g to 100 m 2 /g.

9. The catalytic composition of claim 1 , wherein pores of the granules of said composition have a diameter of from 8 nm to 12 nm.

10. The catalytic composition of claim 1 , wherein pores of the granules of said composition have a volume of from about 0.1 cm 3 /g to about 0.5 cm 3 /g.

11. The catalytic composition of claim 1 , comprising from 20 wt. % to 45 wt. % CuO, from 10 wt. % to less than 20 wt. % ZnO, and from 20 wt. % to 70 wt. % of Al 2 O 3 .

12. The catalytic composition of claim 11 , comprising from 30 wt. % to 45 wt % CuO, from 12 wt. % to less than 20 wt. % ZnO, and from 20 wt. % to 40 wt. % Al 2 O 3 .

13. The catalytic composition of claim 8 , having a specific surface area of from 50 m 2 /g to 100 m 2 /g.

14. The catalytic composition of claim 9 , said pores having a diameter of from 8 nm to 10 nm.

Assignees

• Saudi Arabian Oil Co
• Boreskova Inst Kataliza Sibir

Inventors

• Koseoglu Omer Refa
• Jin Yaming
• Ismagilov Zinfer
• Yashnik Svetlana
• SALNIKOV Anton
• Kerzhentsev Mikhail
• Parmon Valentin

Classifications

• C10G2300/202

  Heteroatoms content, i.e. S, N, O, P · CPC title

• B01D2257/306

  Organic sulfur compounds, e.g. mercaptans · CPC title

• B01D2256/24

  Hydrocarbons · CPC title

• B01D2255/9207

  Specific surface · CPC title

• B01D2255/9205

  Porosity · CPC title