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A refining agent for removing organic nitrogen compounds and thiophene sulfides in fuel oil

A technology for nitrides and sulfides, which is used in the field of refined preparations for removing organic nitrides and thiophene sulfides in fuel oil products, can solve the problems of low removal efficiency, octane number, lubricating performance and stability of oil products. Loss, removal and other problems that have not been reported, achieve the effect of easy recycling, low cost and low cost

Active Publication Date: 2020-04-28
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the hydrogenation process is mature and widely used, but it will cause losses to the octane number, lubricating performance and stability of the oil.
Although the current non-hydrogenation process (extraction method, adsorption method and oxidation method, etc.) causes almost no loss to the octane number, lubricating performance and stability of the oil, the removal efficiency is not high, and it is urgent to develop new fuels. Oil non-hydrogenation denitrogenation and desulfurization technology
As supramolecular hosts, pillar arene has a highly symmetrical, rigid structure and excellent molecular recognition ability, and is often used in water treatment (CN201610079351.5; CN201610176308.0; CN201410631270.2; CN201610266521.0), fluorescence recognition (CN201610199037.0; CN201510558495.4; CN201610199027.7; CN201610909838.1), etc., but there is no report on the removal of organic nitrogen compounds and thiophene sulfides in fuel oil

Method used

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  • A refining agent for removing organic nitrogen compounds and thiophene sulfides in fuel oil
  • A refining agent for removing organic nitrogen compounds and thiophene sulfides in fuel oil
  • A refining agent for removing organic nitrogen compounds and thiophene sulfides in fuel oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Using 50mL of water as a solvent, add 0.05g per-hydroxyl substituted column[5]arene, then add 0.005g triethanolamine and 0.05g hexadecyltrimethylbenzyl ammonium chloride, shake well until completely dissolved, so that perhydroxyl The mass concentration of substituted pillar[5]arene, triethanolamine and cetyltrimethylbenzyl ammonium chloride in water is 0.1%, 0.01% and 0.1% respectively, to form refined preparation A. Will contain 50μg·g -1 The oil product of pyrrole nitrogen was mixed with refined preparation A at a volume ratio of 1:5, stirred at normal pressure and 20°C for 30 minutes (stirring speed was 500 rpm), and after standing for 2 minutes, the removal rate of pyrrole nitrogen was 20.4 %.

Embodiment 2

[0023] Using 50mL of water as a solvent, add 0.25g per-hydroxyl-substituted column[5]arene, then add 0.015g triethanolamine and 0.15g sodium dodecylbenzenesulfonate, shake well until completely dissolved, so that the per-hydroxyl-substituted column[5] 5] The mass concentrations of aromatic hydrocarbons, triethanolamine and sodium dodecylbenzenesulfonate in water are 0.5%, 0.03%, and 0.3% in sequence, forming refined preparation B. Will contain 100μg·g -1 The oil product of pyrrole nitrogen and refined preparation B were mixed at a volume ratio of 1:3, stirred at normal pressure and 30°C for 120 minutes (stirring speed was 500 rpm), and after standing for 10 minutes, the removal rate of pyrrole nitrogen was 41.5 %.

Embodiment 3

[0025] Using 50mL of water as a solvent, add 0.5g of perhydroxyl-substituted pillar[5]arene, then add 0.25g of propylene glycol dimethyl ether and 0.075g of cetyltrimethylbenzyl ammonium chloride, shake well until completely dissolved, so that The mass concentration of perhydroxyl-substituted pillar[5]arene, propylene glycol dimethyl ether, and cetyltrimethylbenzyl ammonium chloride in water is 1%, 0.5%, and 0.15%, respectively, to form Refined Preparation C. Will contain 75μg·g -1 The oil product of pyridine nitrogen and refined preparation C were mixed at a volume ratio of 1:2, stirred at normal pressure and 25°C for 10 minutes (stirring speed was 500 rpm), and after standing for 2 minutes, the removal rate of pyridine nitrogen was 32.6 %.

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Abstract

The invention discloses a refining agent for removing organic nitrides and thiophene sulfides from fuel oils. The refining agent is prepared from fullyhydroxy substituted pillararene as an active component, triethanolamine or 1,2-dimethoxypropane as a stabilizer, sodium dodecylbenzenesulphonate or hexadecyl benzyl trimethyl ammonium bromide as a dispersing agent as well as water. The refining agent mainly adopts fully hydroxy substituted pillararene to deeply remove inclusion interaction of organic nitrides and thiophene sulfides in the fuel oils and has the characteristics of being easy to recover, green, easy to operate and implement and the like, and one novel, environment-friendly and low-cost method is provided for deep denitrification and desulfurization of the fuel oils.

Description

technical field [0001] The invention belongs to the field of petroleum processing, in particular to a refining agent for removing organic nitrogen compounds and thiophene sulfides in fuel oil products. Background technique [0002] At present, people have higher and higher requirements on the cleanliness of oil products, and one of the reasons for the deterioration of oil product quality is the presence of nitrogen and sulfide in petroleum products. The nitrogen compounds and sulfides in oil products are mainly heterocyclic nitrogen compounds and thiophene sulfides, which are difficult to remove, and have a great impact on the stability and oxidation resistance of oil products; at the same time, nitrogen oxides are produced during combustion matter (NO X ) and sulfur oxides (SO X ), causing air pollution. It can be seen that it is of great significance to realize the deep denitrification and desulfurization of oil products. [0003] At present, there are hydrogenation pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00
Inventor 夏道宏段尊斌朱丽君陈金射
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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