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Composite flue gas desulfurization agent and preparation method thereof

A desulfurizer and composite technology, applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems of difficult preparation process and complicated preparation method, achieve low cost, less consumption, and improve economic benefits Effect

Inactive Publication Date: 2010-09-29
JIANGSU POLYTECHNIC UNIVERSITY +1
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Problems solved by technology

However, the preparation method is complex and the preparation process is difficult

Method used

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  • Composite flue gas desulfurization agent and preparation method thereof
  • Composite flue gas desulfurization agent and preparation method thereof

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[0022] Such as figure 1 shown. Account for the mass percent composition of solvent by methyldiethanolamine (MDEA) be 1.0~12.0%, the concentration of surfactant 2-octyl dodecyl sodium sulfate (GC20S) is 3.4 * 10 -6 ~30×10 -6 mol / L to configure desulfurization solution. Contains SO 2 The flue gas of 5wt% passes through the flow meter 3 to measure the flow rate, and the flow rate is set to 2m 3 / h, 4m 3 / h, 6m 3 / h, 8m 3 / h. After the gas is metered, it enters the desulfurization tower 7, which has a diameter of 100mm and a height of 1500mm. The gas distributor 4 installed at the bottom of the desulfurization tower can form the gas into bubbles. The desulfurization liquid tank 5 is equipped with an electric heater, which can change the temperature of the liquid. In this embodiment, the set temperature is 25°C. Circulating through the pump 6, the SO in the flue gas 2 It is absorbed by the desulfurization liquid in the desulfurization tower 7. The purified flue gas flow...

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Abstract

The invention relates to a composite flue gas desulfurization agent and a preparation method thereof, and relates to the technical field of flue gas desulfurization. The desulfurization agent is of a mixed water solution which is formed by mixing methyl diethanolamine (MDEA) and 2-octyl sodium dodecyl sulfate as a surfactant at room temperature, wherein the mass percentage of the methyl diethanolamine (MDEA) accounts for 1.0 to 12.0 percent of a solvent water, and the concentration of the 2-octyl sodium dodecyl sulfate (GC20S ) is 3.4 x 10-6-30 x 10-6mol / L. The composite desulfurization agent effectively reduces surface tension. Through the test of surface tension, the surface tension of the desulfurization agent reduces by 20 to 30 percent under the same temperature conditions compared with the single component MDEA, so that the gas is easy to form small bubbles; and the gas liquid specific surface area is effectively increased, the mass transfer rate is improved, and the desulfurization efficiency reaches to more than 95%.

Description

technical field [0001] The invention relates to a flue gas desulfurizer, in particular to a flue gas desulfurization agent, which is used in flue gas desulfurization, purification and separation of natural gas in oil and gas fields, and can effectively remove SO in flue gas 2 , H in natural gas 2 S, organic sulfur and other acidic gases. Background technique [0002] Flue gas desulfurization is the main technical means to control sulfur dioxide pollution. Foreign research on flue gas desulfurization technology began in the 1950s. Since the 1960s, the United States, Germany, Japan and other countries have started large-scale research, development and application of flue gas desulfurization technology. At present, hundreds of flue gas desulfurization technologies have come out, and thousands of flue gas desulfurization devices have been put into operation. . Among hundreds of flue gas desulfurization technologies, more than 20 are commonly used, which are basically divided...

Claims

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Application Information

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IPC IPC(8): B01D53/50B01D53/14
Inventor 王树立郗春满李辉周诗岽李恩田赵会军赵书华韩永嘉
Owner JIANGSU POLYTECHNIC UNIVERSITY
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