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Method for denitrifying light oil

A light oil and denitrification technology, applied in the chemical field, can solve air pollution and other problems, and achieve the effects of no secondary pollution, mild reaction conditions and high selectivity

Inactive Publication Date: 2013-11-27
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the combustion of nitrogen compounds produces highly corrosive acidic gases that cause air pollution and acid rain

Method used

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  • Method for denitrifying light oil
  • Method for denitrifying light oil
  • Method for denitrifying light oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take a certain amount of photocatalyst, add it to nitrogen-containing light oil, control agent oil ratio: 20mg: 5ml, turn on the xenon lamp device in the photocatalytic reaction box, control the reaction speed within the range of 300r / min, and the reaction temperature at Within the range of 20°C, control the photocatalyst reaction for 3 hours; the photocatalyst is: Bi 2 WO 6 ;

[0022] The photocatalyst Bi 2 WO 6 , is a self-made catalyst, and its preparation method is: with Bi(NO 3 ) 3 ·5H 2 O and Na 2 WO 4 2H 2 O is used as a raw material, and it is dissolved in a nitric acid solution with a concentration of 2 mol / L to obtain a precursor solution, which is then transferred to a reaction kettle. Filter it, wash it with deionized water until the Ph value is 7; control the drying temperature within the range of 60°C, and dry it for 4 hours to obtain the required photocatalyst Bi 2 WO 6 ; The Bi(NO 3 ) 3 ·5H 2 O and Na 2 WO 4 2H 2 The mol ratio of O is: 2...

Embodiment 2

[0024] Take a certain amount of photocatalyst, add it to nitrogen-containing light oil, control agent oil ratio: 5mg: 5ml, turn on the xenon lamp device in the photocatalytic reaction box, control the reaction speed in the range of 100~400r / min, the reaction temperature Control the photocatalyst reaction within 15°C for 3 hours; the photocatalyst is: Bi 2 WO 6 ;

[0025] The photocatalyst Bi 2 WO 6 , is a self-made catalyst, and its preparation method is: with Bi(NO 3 ) 3 ·5H 2 O and Na 2 WO 4 2H 2 O is used as a raw material, and it is dissolved in a non-aqueous nitric acid solvent with a concentration of 4 mol / L to obtain a precursor solution, which is then transferred to a reaction kettle, and the hydrothermal synthesis temperature is controlled within the range of 120 °C, and the hydrothermal synthesis reaction is carried out for 20 h. After the reaction, filter it and wash it with absolute ethanol until the Ph value is 7; control the drying temperature in the ran...

Embodiment 3

[0027] Take a certain amount of photocatalyst, add it to nitrogen-containing light oil, control agent oil ratio: 30mg: 10ml, turn on the xenon lamp device in the photocatalytic reaction box, control the reaction speed within the range of 300r / min, and the reaction temperature at Within the range of 25°C, control the photocatalyst reaction for 5 hours; the photocatalyst is: Bi 2 WO 6 ;

[0028] The photocatalyst Bi 2 WO 6 , is a self-made catalyst, and its preparation method is: with Bi(NO 3 ) 3 ·5H 2 O and Na 2 WO 4 2H 2 O is used as a raw material, and it is dissolved in nitric acid with a concentration of 3 mol / L to obtain a precursor solution, which is then transferred to a reaction kettle, and the hydrothermal synthesis temperature is controlled within the range of 180 °C, and the hydrothermal synthesis reaction is carried out for 26 hours. It is filtered and washed with absolute ethanol until the Ph value is 7; the drying temperature is controlled within the rang...

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Abstract

The invention discloses a method for denitrifying light oil, which comprises the following steps: taking a certain amount of photocatalyst, and adding the photocatalyst into nitrogenous light oil, wherein the ratio of the photocatalyst to the light oil is controlled at 5-40mg:5-15ml; and starting a xenon lamp device in a photocatalytic reaction chamber to react, wherein the reaction speed is controlled at 100-400 r / min, the reaction temperature is controlled at 5-25 DEG C, the reaction time is controlled at 1-5 hours, and the photocatalyst is Bi2WO6.By utilizing the small energy gap and stable catalytic performance of the Bi2WO6 photocatalyst and combining the unique three-dimensional stereoscopic open laminated structure, the photocatalytic denitrification is performed; and the photocatalytic technique has the advantages of high selectivity, no secondary pollution, mild reaction conditions and the like, so the invention widens the application range of the Bi2WO6 photocatalyst and opens up a new field for conventional denitrification.

Description

technical field [0001] The invention relates to the field of chemistry, in particular to a method for denitrogenating light oil. Background technique [0002] Nitrogen-containing compounds in petroleum, especially basic nitrogen compounds, have adverse effects on the catalytic processing of petroleum, the performance of products, and storage stability. They often poison and deactivate catalysts, or cause instability of petroleum products, which are easy A gelatinous precipitate formed. In addition, the combustion of nitrogen compounds produces highly corrosive acidic gases that cause air pollution and acid rain. Therefore, the production of clean oil products in line with international quality is an inevitable trend in the development of the oil refining industry. At the same time, countries around the world are paying more and more attention to environmental protection, and photocatalytic technology is a high-tech that conforms to the development of the times. more peopl...

Claims

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Application Information

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IPC IPC(8): C10G29/00C10G31/00
Inventor 陈颖王旭梁宇泽梁宏宝孙铎张宏宇
Owner NORTHEAST GASOLINEEUM UNIV
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