Method using alumina-zinc oxide-nickel oxide composite for desulfurization of hydrocarbons

Patent metadata

Field	Value
Publication number	US-9663724-B2
Application number	US-201615172689-A
Country	US
Kind code	B2
Filing date	Jun 3, 2016
Priority date	Dec 30, 2013
Publication date	May 30, 2017
Grant date	May 30, 2017

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 desulfurizing a hydrocarbon composition, comprising:
contacting an alumina/NiO/ZnO material with the hydrocarbon composition to adsorb one or more sulfur compounds present in the hydrocarbon composition on the alumina/NiO/ZnO material;
wherein the alumina/NiO/ZnO material has a surface area of 10-15 m 2 /g.

2. The method of claim 1 wherein the hydrocarbon composition is a mixture of an aromatic-containing compound and an alkane.

3. The method of claim 2 wherein the aromatic-containing compound is toluene and the alkane is hexane.

4. The method of claim 1 wherein the sulfur compounds are selected from the group consisting of dibenzothiophene, benzothiophene, and thiophene.

5. The method of claim 1 wherein the method has an adsorption time of 50 minutes.

6. The method of claim 1 wherein the one or more sulfur compounds are adsorbed at an adsorption rate that follows a pseudo second-order reaction rate.

7. The method of claim 1 wherein a concentration of the one or more sulfur compounds in the hydrocarbon composition is 450-650 mg/L.

8. The method of claim 1 wherein the alumina/NiO/ZnO material is contacted with the hydrocarbon composition at room temperature.

9. The method of claim 1 wherein the alumina/NiO/ZnO material has a pore volume of 0.1-0.8 cm 3 /g.

10. The method of claim 1 wherein the alumina/NiO/ZnO material has an adsorption average pore width of 500-600 Å.

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

• B01J20/3078

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

• B01J20/0225

  Compounds of Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt · CPC title

• B01J20/0244

  Compounds of Zn · CPC title

• B01J20/08

  comprising aluminium oxide or hydroxide; comprising bauxite · CPC title

• B01J20/28059

  being less than 100 m2/g · CPC title