A fuel oil denitrification agent utilizing supramolecular inclusion complexation and its application method

A denitrifying agent and fuel technology, applied in chemical instruments and methods, refined hydrocarbon oil, petroleum industry, etc., can solve the problems of high cost, high environmental protection pressure, large loss of octane number, etc., and achieve low cost, mild conditions, low cost effect

Inactive Publication Date: 2017-01-25
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hydrogenation denitrogenation technology is advanced, and the yield of refined oil is high, but it consumes a lot of hydrogen, equipment investment and cost are high, and the deep hydrorefining of gasoline leads to a large loss of octane number
Among the non-hydrogenation denitrification technologies, the more mature ones are mainly acid-base refining, solvent refining, complex extraction refining, adsorption denitrogenation, etc. These methods can effectively reduce the nitrogen content in oil, but use a large amount of acid or Alkali, organic solvents, and solid adsorbents make environmental protection a lot of pressure

Method used

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  • A fuel oil denitrification agent utilizing supramolecular inclusion complexation and its application method
  • A fuel oil denitrification agent utilizing supramolecular inclusion complexation and its application method
  • A fuel oil denitrification agent utilizing supramolecular inclusion complexation and its application method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] With 30ml of water as solvent, add 0.48g of β-cyclodextrin, stir at 40°C until completely dissolved, cool to room temperature, add 0.030g of stabilizer propylene glycol dimethyl ether, shake well, so that the content of β-cyclodextrin is 1.6%, and the stabilizer content is 0.1%. Take 30ml of this liquid denitrification agent and add it to 30ml of pyridine nitrogen content is 99.26μg·g -1 In the oil products, the volume ratio of the agent to oil was 1:1. After stirring at a constant temperature of 25°C for 20 minutes, the oil layer was separated, and the nitrogen removal rate of nitrogen-containing compounds was 74.8%.

Embodiment 2

[0019] Take 10ml of water as solvent, add 0.05g of β-cyclodextrin, stir at 30°C until completely dissolved, cool to room temperature, add 0.010g of stabilizer propylene glycol dimethyl ether, shake well, so that the content of β-cyclodextrin 0.5%, the stabilizer content is 0.1%. Take 10ml of this liquid denitrification agent and add it to 30ml of pyridine nitrogen content is 99.26μg·g -1 In the oil product, the volume ratio of agent to oil was 1:3, and after stirring at a constant temperature of 30°C for 10 minutes, the oil layer was separated, and the nitrogen removal rate of nitrogen-containing compounds was 42.4%.

Embodiment 3

[0021] Using 15ml of water as a solvent, add 0.18g of methyl β-cyclodextrin, stir at 30°C until completely dissolved, cool to room temperature, add 0.010g of stabilizer propylene glycol monomethyl ether, so that methyl β-cyclodextrin The content of the stabilizer is 1.2%, and the content of the stabilizer is 0.1%. Take 15ml of this liquid denitrification agent and add it to 30ml of pyridine nitrogen content is 99.26μg·g -1 In the oil product, the volume ratio of agent to oil was 1:2. After stirring at a constant temperature of 30°C for 10 minutes, the oil layer was separated, and the nitrogen removal rate of nitrogen-containing compounds was 60.1%.

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Abstract

The invention discloses a denitrifier for removing nitrogen-containing compounds in a fuel oil product by using supramolecular inclusion effect and an application method thereof. The denitrifier is composed of beta-cyclodextrin or beta-cyclodextrin derivatives, a stabilizer and water. The denitrifier has the characteristics of high recoverability, high degradability, no pollution and the like. The method can be used for deep denitrification of gasoline and diesel, and provides a novel and easy method for ultralow-nitrogen oil product production, which is easy to operate and has the advantages of low cost and no pollution.

Description

technical field [0001] The invention belongs to the technical field of petroleum product processing, and relates to a non-hydrogenation denitrification method for removing nitrogen-containing compounds in light fuel oil products by using supramolecular recognition to clathrate and remove nitrogen-containing compounds, and provides an environmentally friendly and low-cost ultra-clean oil The method of production of the product. Background technique [0002] In recent years, with the increasingly stringent environmental protection requirements and the continuous development of the automobile industry, people have higher and higher requirements for the cleanliness of oil products. However, studies have shown that the density of crude oil processed in my country is on the rise, the content of sulfur and nitrogen is increasing, and crude oil is becoming heavier and inferior, which makes it more difficult to process crude oil. First, light oil products (gasoline, kerosene, Diesel ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C10G29/22
Inventor 夏道宏卜婷婷段尊斌朱丽君周玉路项玉芝
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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