Limestone-gypsum wet flue gas desulfurization synergist and preparation method thereof

A technology of wet flue gas desulfurization and synergist, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles. Major and other issues

Inactive Publication Date: 2016-01-20
麦适(上海)化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the addition of traditional organic acids (including adipic acid) can reduce the particle size of limestone and enhance the reaction rate of limestone, but it has high requirements for the dosage, dosage and monitoring, and the pH fluctuation will increase with the prolongation of use tim...

Method used

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  • Limestone-gypsum wet flue gas desulfurization synergist and preparation method thereof
  • Limestone-gypsum wet flue gas desulfurization synergist and preparation method thereof
  • Limestone-gypsum wet flue gas desulfurization synergist and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1, at normal temperature and pressure, weigh organic acid salt (70 kg of sodium diacetate), organic acid anhydride (5 kg of maleic anhydride) and surfactant (5 kg of polysiloxane) into the reactor Stir in the middle until uniform, that is, a limestone-gypsum wet-process flue gas desulfurization synergist of the present invention is obtained. During the production process, due to the large amount of powder, attention should be paid to the protection of flying powder. At the same time, when the limestone-gypsum wet-process flue gas desulfurization synergist is stored and transported, it should be placed in a cool and ventilated place, avoiding high temperature and prohibiting open storage.

[0022] The desulfurization synergist contains sodium diacetate, maleic anhydride and polysiloxane. Optimize the desulfurization process with the most simple, effective, economical and safe methods to improve the desulfurization performance of the FGD (fluegas desulphuration, ...

Embodiment 2

[0027] Example 2, under normal temperature and pressure, weigh 90 kilograms of sodium diacetate, 20 kilograms of maleic anhydride and 15 kilograms of polysiloxane and add it to the reactor and stir until uniform, so as to obtain a limestone- Gypsum wet flue gas desulfurization synergist.

Embodiment 3

[0028] Example 3, under normal temperature and pressure, weigh 80 kilograms of sodium diacetate, 15 kilograms of maleic anhydride and 10 kilograms of polysiloxane and add it to the reactor and stir until uniform, so as to obtain a limestone- Gypsum wet flue gas desulfurization synergist.

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Abstract

The present invention discloses a limestone-gypsum wet flue gas desulfurization synergist, which comprises, by weight, 70-90 parts of an organic acid salt, 5-20 parts of an organic anhydride, and 5-15 parts of a surfactant. According to the present invention, the type of the component of the desulfurization synergist is simplified while the obtained synergetic desulfurization effect is good; due to the excellent and stable desulfurization effect, under the same conditions, the used raw materials are less, the production cost of the enterprise is low, and the performance price ratio is high; and the sodium diacetate accounting for the absolute proportion in the desulfurization synergist components is the internationally-recognized efficient, safe and inexpensive food additive, and has characteristics of good safety and good environmental protection during the production process, the storage and transportation process, the use process and other processes.

Description

technical field [0001] The invention relates to the field of wet flue gas desulfurization, in particular to a limestone-gypsum wet flue gas desulfurization synergist and a preparation method thereof. Background technique [0002] With the rise of China's economy, China's international responsibilities in the international community are becoming heavier, especially the pressure on environmental protection is getting heavier, and the country's requirements for thermal power emission reduction are getting higher and higher. Capacity has been increasingly unable to meet the country's environmental protection requirements. At the same time, with the continuous increase of thermal power units in recent years, the supply and demand relationship in the coal market has undergone great changes. Due to the change in supply and demand relationship, the type of coal burned in thermal power plants has changed accordingly. Since 2005, thermal power plants in my country began to install fl...

Claims

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Application Information

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IPC IPC(8): B01D53/80B01D53/50
Inventor 刘伟国
Owner 麦适(上海)化工有限公司
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