Method of removing thiophene sulfur from fuel oil by Ag2O/SiO2-Al2O3-graphene oxide composite aerogel
A graphene composite and aerogel technology, which is applied in chemical instruments and methods, petroleum industry, alkali metal compounds, etc., to achieve the effects of improving high temperature resistance, strengthening the skeleton structure, and improving adsorption performance
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Embodiment 1~8
[0030] Embodiments 1-8: Ag of different silicon sources, silver sources and aluminum sources 2 O / SiO 2 -Al 2 o 3 - Adsorption performance of graphene oxide composite airgel on thiophene sulfides in simulated gasoline
[0031] Ag prepared by sol-gel method 2 O / SiO 2 -Al 2 o 3 - In the graphene oxide composite airgel, the silicon source used includes methyl orthosilicate, ethyl orthosilicate, and silica sol, the silver source includes silver nitrate and silver acetate, and the aluminum source is aluminum nitrate and organic aluminum source. The prepared Ag 2 O / SiO 2 -Al 2 o 3 - Graphene oxide composite aerogel is used for penetration adsorption desulfurization experiment, the specific operation is as follows: In the fixed bed reactor, the bottom layer is filled with an appropriate amount of absorbent cotton, and then filled with 1g of Ag 2 O / SiO 2 -Al 2 o 3 - Graphene oxide airgel with appropriate amount of quartz sand. Before the adsorption experiment started, th...
Embodiment 9~14
[0039] Examples 9-14: Ag with different molar ratios of silicon to aluminum 2 O / SiO 2 -Al 2 o 3 - Adsorption performance of graphene oxide composite airgel on thiophene sulfides in simulated gasoline
[0040] Choose Ag with a silicon-silver molar ratio of 50:1 and a silicon-aluminum molar ratio of 25, 50, 75, 100, 125, and 150, respectively. 2 O / SiO 2 -Al 2 o 3 - Graphene oxide airgel, the penetration adsorption experiment of thiophene sulfides in simulated gasoline. The operation of the breakthrough adsorption experiment is the same as in Examples 1-8, and the adsorption results are shown in Table 4.
[0041] Table 4 Ag with different molar ratios of silicon to aluminum 2 O / SiO 2 -Al 2 o 3 Adsorption performance of graphene oxide composite airgel on thiophene sulfides in simulated gasoline
[0042]
[0043] As can be seen from Table 4, Ag with different molar ratios of silicon to aluminum 2 O / SiO 2 -Al 2 o 3 - With the decrease of silicon-aluminum molar rat...
Embodiment 15~18
[0044] Examples 15-18: Ag with different silicon-silver molar ratios 2 O / SiO 2 -Al 2 o 3 - Adsorption performance of graphene oxide composite airgel on thiophene sulfides in simulated gasoline
[0045] Ag with a silicon-silver molar ratio of 10, 20, 50, and 100 was selected. 2 O / SiO 2 -Al 2 o 3 - Graphene oxide airgel, the penetration adsorption experiment of thiophene sulfides in simulated gasoline. The operation of the breakthrough adsorption experiment is the same as in Examples 1-8, and the adsorption results are shown in Table 5.
[0046] Table 5 Ag with different molar ratios of silicon to silver 2 O / SiO 2 -Al 2 o 3 - Adsorption performance of graphene oxide composite airgel on thiophene sulfides in simulated gasoline
[0047]
[0048] It can be seen from Table 5 that Ag 2 O / SiO 2 -Al 2 o 3 - With the decrease of the silicon-silver molar ratio, that is, the increase of the silver content, the breakthrough adsorption capacity of graphene oxide airgel fo...
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