Method of light oil desulfurization in the presence of methane containing gas environment and catalyst structure
AssigneeKara Technologies Inc.
InventorsHua Song, Hao Xu, Zhaofei Li, Yimeng Li
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Abstract
Catalyst structures and corresponding methods are described for the desulfurization of sulfur-containing light oil or model compounds under a specified gas atmosphere. The sulfur-containing feedstock is effectively converted while producing valuable hydrocarbon products such as BTX and carbon disulfide, as well as utilizing methane or natural gas resources, providing an economical and environmental innovation in the petroleum industry.
Claims23
A method for the desulfurization of a sulfur-containing feedstock, the method comprising introducing the sulfur-containing feedstock within a reactor in the presence of a gas atmosphere and a catalyst structure, wherein the catalyst structure comprises a porous support structure that includes one or more of the following materials:
- an aluminum oxide (Al2O3), an aluminosilicate material such as a zeolite, a silicon oxide (SiO2), a silicon carbide (SiC), and a titanium oxide (TiO2).
A method of forming a catalyst structure, the method comprising:
- dissolving two or more metal salts in water to form a metal precursor solution;
- loading the metal precursor solution into the porous support structure;
- drying the support structure loaded with a metal precursor for a period of at least 2 hours at a temperature from about 80° C. to about 120° C.;
- and
- calcining the dried support structure loaded with a metal precursor in a gas atmosphere and at a temperature ranging from about 300° C. to about 700° C. and at a heating rate ranging from about 5° C./min to about 20° C./min.
A catalyst structure comprising any two or more of:
- a porous support structure comprising titanium oxide loaded with molybdenum and nickel;
- a porous support structure comprising an aluminosilicate material loaded with at least two of silver, gallium and cerium loaded in the aluminosilicate material;
- and
- a porous support structure comprising an aluminosilicate material loaded with silver, gallium and molybdenum.
Dependencies are inferred from the claim text.