Truncated polyhedron-shaped MOFs (at) rGO material as well as preparation method and application thereof

A polyhedron and truncated angle technology, applied in chemical instruments and methods, refined hydrocarbon oil, other chemical processes, etc., can solve the problems of harsh reaction conditions, high production cost, small sulfur capacity, etc., to improve desulfurization performance and save material costs. and time cost effects

Pending Publication Date: 2022-05-13
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is to overcome the shortcomings of the prior art, such as low removal rate of thiophene and its derivatives, small sulfur capacity, etc., and there are also shortcomings such as harsh reaction conditions, high production cost, and high hydrogen consumption.

Method used

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  • Truncated polyhedron-shaped MOFs (at) rGO material as well as preparation method and application thereof
  • Truncated polyhedron-shaped MOFs (at) rGO material as well as preparation method and application thereof
  • Truncated polyhedron-shaped MOFs (at) rGO material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Weigh 50 mg of graphite oxide and 50 mg of sodium benzenesulfonate and disperse them into 100 mL of ethanol, and ultrasonically peel them off for 8 hours to obtain a uniform graphene oxide dispersion A.

[0061] Weigh 700 mg of trimesic acid and add it into a mixture of 40 mL of absolute ethanol and 20 mL of N,N-dimethylformamide, and stir thoroughly for 30 min. Weigh 1400mg of copper nitrate trihydrate and dissolve it in 20mL of deionized water, then fully stir the two solutions for 60min to obtain MOF-199 mother liquor. Slowly add the graphene oxide dispersion A into the MOF-199 mother liquor, and ultrasonicate for 60 minutes. Then put it in a 95°C reactor for 20h. After the reaction was completed, it was naturally cooled to room temperature, centrifuged, washed three times with absolute ethanol, dried at 60 °C for 6 h, and dried at 130 °C for 8 h to obtain MOFs@rGO-1 materials. Among them, the mass ratio of metal to reduced graphene oxide in the MOF is about 25:1. ...

Embodiment 2

[0065] Weigh 50 mg of graphite oxide and 50 mg of sodium dodecylbenzene sulfonate and disperse them into 100 mL of ethanol, and ultrasonically peel them off for 8 hours to obtain a uniform graphene oxide dispersion A.

[0066] Weigh 700 mg of trimesic acid and add it into a mixture of 40 mL of absolute ethanol and 20 mL of N,N-dimethylformamide, and stir thoroughly for 30 min. Weigh 1400mg of copper nitrate trihydrate and dissolve it in 20mL of deionized water, then fully stir the two solutions for 60min to obtain MOF-199 mother liquor. Slowly add the graphene oxide dispersion A into the MOF-199 mother liquor, and ultrasonicate for 60 minutes. Then put it in a 95°C reactor for 20h. After the reaction was completed, it was naturally cooled to room temperature, centrifuged, washed three times with absolute ethanol, dried at 60 °C for 6 h, and dried at 130 °C for 8 h to obtain MOFs@rGO-2 materials. Among them, the mass ratio of metal to reduced graphene oxide in the MOF is abou...

Embodiment 3

[0070] Weigh 140 mg of graphite oxide and 50 mg of sodium benzenesulfonate and disperse them into 100 mL of ethanol, and ultrasonically peel them off for 8 hours to obtain a uniform graphene oxide dispersion A.

[0071] Weigh 700 mg of trimesic acid and add it into a mixture of 40 mL of absolute ethanol and 20 mL of N,N-dimethylformamide, and stir thoroughly for 30 min. Weigh 1400mg of copper nitrate trihydrate and dissolve it in 20mL of deionized water, then fully stir the two solutions for 60min to obtain MOF-199 mother liquor. Slowly add the graphene oxide dispersion A into the MOF-199 mother liquor, and ultrasonicate for 60 minutes. Then put it in a 95°C reactor for 20h. After the reaction was completed, it was naturally cooled to room temperature, centrifuged, washed three times with absolute ethanol, dried at 60 °C for 6 h, and dried at 130 °C for 8 h to obtain MOFs@rGO-3 materials. Among them, the mass ratio of metal to reduced graphene oxide in the MOF is about 16:1....

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Abstract

The invention discloses a truncated polyhedron-shaped MOFs (at) rGO material as well as a preparation method and application thereof. The chamfered polyhedron-shaped MOFs (at) rGO material provided by the invention comprises reduced graphene oxide and a metal organic framework material, and the chamfered polyhedron-shaped MOFs (at) rGO material contains a hierarchical pore structure. The truncated polyhedron-shaped MOFs (at) rGO material can be used as an adsorbent for effectively removing thiophene sulfides, has the characteristics of stable structure, high removal rate and high sulfur capacity, and is mild in reaction condition, low in production cost and low in hydrogen consumption.

Description

technical field [0001] The invention relates to the field of adsorption desulfurization, in particular to a truncated polyhedral MOFs@rGO material, a preparation method and its application in adsorption desulfurization. Background technique [0002] In recent years, people have paid more and more attention to clean energy. Among them, fuel cells can not only convert chemical energy into electrical energy conveniently and cleanly, but also can be effectively used in motor vehicles and power plants. They are currently the most promising energy conversion devices. Fuel oil is an ideal energy source for fuel cells, but the sulfur compounds in fuel oil can easily poison the reforming catalyst in the fuel cell and the catalyst in its electrodes. Therefore, the sulfur content of fuel oil used in fuel cells must be controlled to be extremely low. [0003] Sulfur compounds in fuel oil such as finished gasoline mainly include mercaptans, sulfides, disulfides, thiophenes and their der...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/20B01J20/28B01J20/30C10G25/00
CPCB01J20/226B01J20/20B01J20/28066B01J20/3085C10G25/003C10G2300/202C10G2300/4018
Inventor 韩笑高晓晨柏诗哲高焕新
Owner CHINA PETROLEUM & CHEM CORP
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