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Method for capturing nitric oxide by using amino acid anion functional ionic liquid

A technology of nitric oxide and ionic liquid, applied in the field of chemistry, can solve the problem of high price of azoles, and achieve the effect of improving absorption efficiency and high-efficiency and high-capacity absorption

Active Publication Date: 2017-02-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price of azoles, it is difficult to apply to actual production

Method used

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  • Method for capturing nitric oxide by using amino acid anion functional ionic liquid
  • Method for capturing nitric oxide by using amino acid anion functional ionic liquid
  • Method for capturing nitric oxide by using amino acid anion functional ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In a 5ml glass container with an internal diameter of 1cm, add 0.80g (0.003mol) of ionic liquid (β-hydroxyethyl) trimethylamine proline, then place it in a sealed tank with a nitric oxide pressure of 0.1MPa, and control The absorption temperature is 30° C., the absorption equilibrium time is 14 hours, and the weighing shows that the absorption capacity of nitric oxide in the ionic liquid is 2.0 mol / mol ionic liquid.

Embodiment 2-5

[0020] Similar to Example 1, the nitric oxide gas pressure is controlled to be 0.1 MPa, the absorption temperature is 30° C., and the type of ionic liquid is changed. The results of nitric oxide absorption are as follows (Table 1):

[0021] Table 1 Effect of different anions on nitric oxide capture

[0022]

Embodiment 5-12

[0024] Similar to Example 1, using (β-hydroxyethyl) trimethylamine proline as absorbent, absorbing nitric oxide gas, changing the absorption temperature, nitric oxide pressure and absorption time and other conditions, the absorption results are as follows ( Table 2):

[0025] Table 2 Effect of different absorption conditions on nitric oxide absorption

[0026]

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PUM

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Abstract

The invention discloses a method for capturing nitric oxide by using amino acid anion functional ionic liquid. According to the method, amino acid anion is enabled to act with the nitric oxide to efficiently absorb nitric oxide gas, the absorption pressure is 0.0001-0.2MPa, the absorption temperature is 20-100 DEG C, the absorption time is 0.1-20 hours, the absorbed nitric oxide is relatively easy to desorb, the desorption temperature is 60-120 DEG C, and the desorption time is 0.1-5 hours. As the amino acid anion functional ionic liquid is adopted to react with the nitric oxide to generate NONOates, the absorption efficiency of the nitric oxide is greatly improved, and 2.0moles of the nitric oxide can be captured by one mole of the ionic liquid at most.

Description

technical field [0001] The invention belongs to the field of chemical methods, in particular to a method for trapping nitric oxide by using amino acid anion functionalized ionic liquid. Background technique [0002] With the development of the economy and the burning of fossil fuels, air pollution is becoming more and more serious. Among them, nitrogen oxides (NOx) are the main components of air pollution. In flue gas, 90-95% of NOx is NO. In industry, traditional NOx capture methods mainly include selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR). However, these methods have certain limitations. For example, for SCR, the cost is high, and the sulfide in the flue gas is easy to cause catalyst deactivation; for SNCR, the NOx capture efficiency is low, and exhaust gas will be generated. Therefore, it is of great significance to design and synthesize new materials for efficient NOx capture. [0003] Biologically, NONOates have attracted extens...

Claims

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Application Information

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IPC IPC(8): B01D53/14
Inventor 王从敏陈凯宏施桂玲李浩然
Owner ZHEJIANG UNIV
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