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Amorphous boron nitride adsorbent and preparation method and application thereof

A boron nitride and amorphous technology, applied in chemical instruments and methods, inorganic chemistry, nitrogen compounds, etc., to achieve the effect of simple preparation method, high adsorption activity and mild reaction conditions

Inactive Publication Date: 2017-06-13
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of amorphous boron nitride for fuel oil adsorption desulfurization has not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Dissolve 0.6184g of boric acid and 16.8168g of urea in a mixture of 40ml of water and methanol (the volume ratio of water and methanol is 1:1), stir at 60°C until the solution is completely evaporated, and the resulting solid is placed in a tube furnace After rising from room temperature at 10 °C / min to 900 °C under a nitrogen atmosphere, it immediately lowered to room temperature naturally (that is, kept at 900 °C for 0 min), and the obtained product was BN-0.

Embodiment 2

[0022] Dissolve 1.2366g of boric acid and 33.6336g of urea in a mixture of 40ml of water and methanol (the volume ratio of water and methanol is 1:1), stir at 80°C until the solution is completely evaporated, and the resulting solid is placed in a tube furnace In a nitrogen atmosphere, it was raised from room temperature at 10 °C / min to 900 °C for 20 min, and then naturally lowered to room temperature, and the obtained product was BN-20.

Embodiment 3

[0024] Dissolve 0.9275g of boric acid and 25.2252g of urea in a mixture of 40ml of water and methanol (the volume ratio of water and methanol is 1:1), stir at 70°C until the solution is completely evaporated, and the resulting solid is placed in a tube furnace In a nitrogen atmosphere, it was raised from room temperature at 10 °C / min to 900 °C for 40 min, and then naturally lowered to room temperature, and the obtained product was BN-40.

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PUM

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Abstract

The invention relates to an amorphous boron nitride adsorbent and a preparation method and an application thereof. The preparation method comprises the steps of dissolving boric acid and urea into a mixed solution of water and methyl alcohol, carrying out recrystallization and carrying out high-temperature and rapid burning on the recrystallized solid in a nitrogen atmosphere. The preparation method is simple; and the obtained amorphous boron nitride has multiple active sites, can be used for adsorption desulfurization of fuel oil, and is capable of adsorbing organic sulfide in the fuel oil at high energy efficiency and high selectivity.

Description

technical field [0001] The invention relates to amorphous boron nitride, in particular to a preparation process of an amorphous boron nitride adsorbent and its application in reducing the sulfur content in fuel oil. Background technique [0002] In recent years, many cities in my country have experienced severe air pollution and haze weather, including PM2.5, SO 2 Pollutants such as pollutants seriously exceed the standard, and motor vehicle exhaust emissions are one of the main reasons. The SO produced by the combustion of sulfur compounds in gasoline and diesel (fuel oil) x And sulfate will produce PM2.5 and other polluting particles. Controlling the sulfur content in fuel can effectively reduce pollution from the source. Countries all over the world have increasingly strict requirements on the sulfur content in fuel oil. Under the existing technological conditions, to reduce the sulfur content to 10-30ppm, or even to be sulfur-free, petrochemical enterprises need to inve...

Claims

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Application Information

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IPC IPC(8): B01J20/02B01J20/30C10G25/00C01B21/064
CPCB01J20/0259C01B21/064C10G25/003C10G2300/202
Inventor 熊君罗静杨磊朱文帅李华明
Owner JIANGSU UNIV
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