Method for preparing alumina—zinc oxide—nickel oxide composite for desulfurization

Patent metadata

Field	Value
Publication number	US-9421516-B2
Application number	US-201314144114-A
Country	US
Kind code	B2
Filing date	Dec 30, 2013
Priority date	Dec 30, 2013
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

Abstract

Alumina/NiO/ZnO and Alumina/ZnO are synthesized via a novel modified hydrothermal method and investigated for the desulfurization activities. Sulfur compounds such as thiophene, benzothiophene (BT) and dibenzothiophene (DBT) are tested for their removal from model diesel fuel. The prepared composite materials were examined by the means of N 2 -adsorption, X-ray diffraction and Fourier transform infrared spectroscopy.

First claim

The invention claimed is:

1. A method for obtaining a metal-oxide/NiO/ZnO material, comprising:
dispersing a metal-oxide in a solvent to form a mixed solution;
dissolving a zinc compound and a nickel compound in an aqueous solution to form a second mixed solution;
mixing the first and second mixed solutions to form a mixture;
sonicating the mixture;
heating the mixture;
cooling and filtering the mixture to obtain the desired material;
drying the mixture; and
calcining the mixture to form a metal-oxide/NiO/ZnO material having a surface area of about 10-15 m 2 /g, a pore volume of about 0.1-0.8 cm 3 /g, and an adsorption average pore width of about 500-600 Å.

2. The method of claim 1 in which the metal-oxide is any metal-oxide except iron oxide, titanium oxide or an alkali metal oxide.

3. The method of claim 1 in which the metal-oxide is alumina.

4. The method of claim 1 in which the solvent comprises ethanol and water.

5. The method of claim 1 , further comprising controlling the pH of the mixture at above 6.

6. A method for obtaining a metal-oxide/ZnO material, comprising:
dispersing a metal-oxide in a solvent to form a mixed solution;
dissolving a zinc compound in an aqueous solution to form a second mixed solution;
mixing the first and second mixed solutions to form a mixture;
sonicating the mixture;
heating the mixture;
cooling and filtering the mixture to obtain the desired material;
drying the mixture; and
calcining the mixture to form a metal-oxide/ZnO material having a surface area of about 10-15 m 2 /g, a pore volume of about 0.1-0.8 cm 3 /g, and an adsorption average pore width of about 500-600 Å.

7. The method of claim 1 in which the metal-oxide is any metal-oxide except iron oxide, titanium oxide or an alkali metal oxide.

8. The method of claim 6 in which the metal-oxide is alumina.

9. The method of claim 6 in which the solvent comprises ethanol and water.

10. The method of claim 6 further comprising controlling the pH of the mixture at above 6.

Assignees

• Univ King Fahd Pet & Minerals
• King Abdulaziz City Sci & Tech

Inventors

• Alhooshani Khalid R
• Al Swat Abdullah A
• Saleh Tawfik A
• Siddiqui Mohammad N
• Gondal Mohammed A

Classifications

• C10G25/003 Primary

  Specific sorbent material, not covered by C10G25/02 or C10G25/03 · CPC title

• B01J20/3078 Primary

  Thermal treatment, e.g. calcining or pyrolizing · CPC title

• C10G25/09

  according to the "fluidised bed" technique · CPC title

• B01J20/28071

  being less than 0.5 ml/g · CPC title

• B01J20/0244

  Compounds of Zn · CPC title