Pipeline injection flue gas desulphurization and preparation method thereof
A flue gas and pipeline technology, applied in the field of pipeline injection flue gas desulfurization and its preparation, can solve the problems of difficult process control, high desulfurization cost, and difficult recycling of by-products, and achieve the effect of simple process, low investment and cost
Inactive Publication Date: 2012-02-15
杜鹏
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[0002] my country's energy is dominated by coal, and coal combustion is the main source of sulfur dioxide in the atmosphere, and sulfur dioxide is one of the main air pollutants faced by human beings today. Its existence is harmful to the natural ecological environment, human health, industrial and agricultural production, buildings and materials. and other aspects have caused a certain degree of harm. With the in-depth understanding and research on the causes and hazards of sulfur dioxide pollution, the people and governments of various countries have realized the severity of air pollution and the urgency of controlling air pollution, and have issued various measures. Flue gas desulfurization technology, however, the traditional flue gas desulfurization technology has problems such as complicated operation, difficult process control, high desulfurization cost, and difficult recycling of by-products
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[0007] 1. Spray humidified slaked lime between the boiler and the dust collector, and the slaked lime will chemically react with the sulfur dioxide in the flue gas to play the role of sulfur fixation and desulfurization;
[0008] 2. Spray dry sodium-based absorbent between the boiler and the dust collector, and the product of sodium-based thermal decomposition can react with sulfur dioxide in the flue gas to play a role in desulfurization;
[0009] 3. Spray lime slurry between the boiler and the dust collector or wash it in the pipe, and the limestone will chemically react with the sulfur dioxide in the flue gas to play the role of sulfur fixation and desulfurization.
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The invention discloses a pipeline injection flue gas desulphurization and a preparation method thereof. The method comprises step of injecting a calcium base or sodium base absorbent between a boiler and a deduster; and common pipeline injection forms include: 1. dried slaked lime which needs to be humidified; 2. dry sodium base absorbent which does not need to be humidified; 3. spraying of lime white or washing in the pipe which does not require an individual humidification step. Effects of water spraying humidification are to increase absorbent activity and desulfurization rate and adjust dust characteristics, so as to guarantee a dust removal efficiency of the deduster.
Description
technical field [0001] The invention belongs to a flue gas desulfurization method, in particular to a pipe jet flue gas desulfurization method and a preparation method thereof. Background technique [0002] my country's energy is dominated by coal, and coal combustion is the main source of sulfur dioxide in the atmosphere, and sulfur dioxide is one of the main air pollutants faced by human beings today. Its existence is harmful to the natural ecological environment, human health, industrial and agricultural production, buildings and materials. and other aspects have caused a certain degree of harm. With the in-depth understanding and research on the causes and hazards of sulfur dioxide pollution, people and governments of various countries have realized the severity of air pollution and the urgency of controlling air pollution, and have issued various measures. Flue gas desulfurization technology. However, the traditional flue gas desulfurization technology has problems such a...
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IPC IPC(8): B01D53/83B01D53/80B01D53/50
Inventor 杜鹏
Owner 杜鹏