Low eutectic solvent and method for extracting alkaline/non-alkaline nitrogen from simulated gasoline

A low eutectic solvent, non-basic nitrogen technology, applied in the direction of refining with acid-containing liquid, etc., can solve the problems of low extraction efficiency, inability to achieve large-scale research and industrial production of extraction, and high use of extractant, and achieve the extraction rate. High, beneficial to large-scale research and industrial production, and the effect of strong extraction capacity

Active Publication Date: 2019-04-26
QINGDAO UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In order to solve the problem that the low eutectic solvent for extracting basic / non-basic nitrogen in simulated gasoline in the prior art has low extraction efficiency and high extraction agent usage, so that the extraction cannot realize large-scale research and industrial production, the present invention provides Deep eutectic solvent and method for extracting basic / non-basic nitrogen in simulated gasoline

Method used

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  • Low eutectic solvent and method for extracting alkaline/non-alkaline nitrogen from simulated gasoline
  • Low eutectic solvent and method for extracting alkaline/non-alkaline nitrogen from simulated gasoline
  • Low eutectic solvent and method for extracting alkaline/non-alkaline nitrogen from simulated gasoline

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Embodiment 1

[0017] Preparation of a deep eutectic solvent for extracting basic / non-basic nitrogen in simulated gasoline in embodiment 1

[0018] In a 100mL three-necked flask equipped with a mechanical stirring bar and a thermometer, add N-methylacetamide and 2 , 3-dibromopropionic acid, install this system in an oil bath, heat it to 90°C, and react for 1h under the condition of 800r / min, to obtain a colorless uniform liquid which is the extraction agent [N-methylacetamide] / [2,3-Dibromopropionic acid].

[0019] figure 1 Among them, (a) is [N-methylacetamide], (b) is [2,3-dibromopropionic acid], (c) is [N-methylacetamide] / [2,3-dibromopropionic acid] propionic acid]. as attached figure 1 The indicated FT-IR(KBr,v / cm -1 ) spectrum, 3426cm -1 The stretching vibration peak is the O-H stretching vibration peak of 2,3-dibromopropionic acid. It can be seen from the figure that when the low-temperature eutectic extractant is formed, the O-H stretching vibration peak moves to the lower field...

Embodiment 2

[0021] Preparation of the deep eutectic solvent for extracting basic / non-basic nitrogen in simulated gasoline in embodiment 2

[0022] In a 100mL three-necked flask equipped with a mechanical stirring bar and a thermometer, add N-methylformamide and 2 , 3-dibromopropionic acid, install this system in an oil bath, heat to 90°C, and react for 1h under the condition of 800r / min to obtain a light yellow uniform liquid which is the extraction agent [N-methylformamide] [2,3-Dibromopropionic acid].

Embodiment 3

[0023] Preparation of a deep eutectic solvent for extracting basic / non-basic nitrogen in simulated gasoline in embodiment 3

[0024] In a 100mL three-necked flask equipped with a mechanical stirring bar and a thermometer, add N-methylacetamide and 2 , 3-dichloropropionic acid, install this system in an oil bath, heat it to 90°C, and react for 1h under the condition of 800r / min, and obtain a light yellow uniform liquid which is the extraction agent [N-methylacetamide] [2,3-Dichloropropionic acid].

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Abstract

The invention relates to the technical field of extraction of alkaline / non-alkaline nitrogen from simulated gasoline, and discloses a low eutectic solvent and a method for extracting the alkaline / non-alkaline nitrogen from the simulated gasoline. The low eutectic solvent for extracting the alkaline / non-alkaline nitrogen from the simulated gasoline is prepared by heating a hydrogen bond receptor and a hydrogen bond donor according to a molar ratio of 1:1 while stirring, and performing a reaction, wherein the hydrogen bond receptor is N-methylacetamide or N-methylformamide and the hydrogen bonddonor is 2,3-dibromopropionic acid or 2,3-dichloropropionic acid. When the low eutectic solvent is used for extracting the alkaline / non-alkaline nitrogen from the simulated gasoline, the extracting efficiency is high and the using amount of an extracting agent is low, so that achievement of industrialization of extraction of the non-alkaline nitrogen from the gasoline through the low eutectic solvent becomes possible.

Description

technical field [0001] The invention relates to a deep eutectic solvent and method for extracting basic / non-basic nitrogen from simulated gasoline. Background technique [0002] Fuel oil resources are one of the most important engine fuels in my country at present, but the existence of nitrogen-containing compounds in them has caused serious harm to production and the environment, not only reducing the anti-oxidation stability of oil products, but also affecting the storage and use performance of oil products. Combustion of fuel oil containing nitrogen compounds produces NO X , forming acid rain, which is one of the main sources of environmental pollution. In order to solve the current problem of heavy environmental pollution and difficult governance, an efficient fuel cleaning method is urgently needed. At present, the traditional fuel denitrification technologies include: hydrogenation denitrification, adsorption denitrification, acid washing denitrification and extracti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G17/02
CPCC10G17/02
Inventor 于凤丽解从霞赵秀秀袁冰于世涛高洪萍王潇
Owner QINGDAO UNIV OF SCI & TECH
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