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a kind of absorption co 2 medium and absorption method
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An absorption medium, CH2CH2HO technology, applied in the field of resources and environment, can solve the problems of poor absorption effect and incomplete absorption, and achieve the effect of strong absorption capacity, easy desorption operation and low corrosion
Inactive Publication Date: 2020-03-13
JIANGXI NORMAL UNIV
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Problems solved by technology
[0008] In order to solve the problem of CO in the existing carbon dioxide capture technology 2 The problem of poor absorption effect and incomplete absorption, the present invention provides a CO 2 Absorption medium and absorption method, the CO 2 The absorption medium uses organic, inorganic and nano-materials to absorb CO 2
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Embodiment 1
[0029] Take 110g (CH 2 CH 2 HO) 2 NCH 2 COONa, 20g secondary alcohol amine, 15g sodium hydroxide, 25g nano TiO 2 , 40g of distilled water, put into a four-necked flask with stirring and temperature measurement functions, heated in a constant temperature water bath at 40°C, the stirring speed was 150r / min, and the concentration of 99.9% CO 2 into the solution, using a wet anti-corrosion flowmeter to measure, and thus calculate the CO 2 of absorption. After the absorption test is completed, the above-mentioned absorbing CO 2 The solution was heated and maintained at a temperature of 110°C for the regeneration test, and the stirring speed was 150r / min. Use a wet anti-corrosion flowmeter to measure and calculate CO 2 regeneration rate. See Table 1 and Table 2 for the results.
Embodiment 2
[0031] Take 120g (CH 2 CH 2 HO) 2 NC 3 h 6 COONa, 25g secondary alcohol amine, 10g sodium hydroxide, 20g nano TiO 2 , 40g of distilled water, put into a four-neck flask with stirring and temperature measurement functions, heated in a constant temperature water bath at 40°C, the stirring speed was 150r / min, and the concentration of 99.9% CO 2 into the solution, using a wet anti-corrosion flowmeter to measure, and thus calculate the CO 2 of absorption. After the absorption test is completed, the above-mentioned absorbing CO 2 The solution was heated and maintained at a temperature of 110°C for the regeneration test, and the stirring speed was 150r / min. Use a wet anti-corrosion flowmeter to measure and calculate CO 2 regeneration rate. See Table 1 and Table 2 for the results.
Embodiment 3
[0033] Take 100g (CH 2 CH 2 HO) 2 NC 8 h 16 COONa, 30g secondary alcohol amine, 20g sodium hydroxide, 30g nano TiO 2 , 35g of distilled water, put into a four-necked flask with stirring and temperature measurement functions, heated in a constant temperature water bath at 40°C, the stirring speed was 150r / min, and the concentration of 99.9% CO 2 into the solution, using a wet anti-corrosion flowmeter to measure, and thus calculate the CO 2 of absorption. After the absorption test is completed, the above-mentioned absorbing CO 2 The solution was heated and maintained at a temperature of 110°C for the regeneration test, and the stirring speed was 150r / min. Use a wet anti-corrosion flowmeter to measure and calculate CO 2 regeneration rate. See Table 1 and Table 2 for the results.
[0034] Table 1 Different solvents to CO 2 Absorption
[0035]
[0036] Table 2 Different solvent CO 2 regeneration
[0037]
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Abstract
The present invention provides a CO 2 absorption medium and a CO 2 absorption method. CO 2 The absorption medium consists of 55% of the molecular formula (CH 2 CH 2 HO) 2 NR 1 The band amino acid alkanolamine of COONa (wherein R 1 is an n-alkyl group with 1 to 10 carbon atoms), 10% secondary alcohol amine (DEA), 5% sodium hydroxide (NaOH), 15% nano-sized TiO 2 (Particle size 10-20nm), 15% distilled water composition. Wherein N-methyldiethanolamine and secondary alcohol amine are in liquid state, sodium hydroxide and nanoscale TiO 2 It is a solid state, and the above materials are mixed according to the above ratio to make a liquid absorption medium. CO 2 The absorption method converts CO 2 gas or CO 2 The gas mixture is in contact with the absorption medium, so that the CO 2 absorb. The method advantage of the present invention is: CO 2 The absorption rate is high, the absorption speed is fast, the circulation volume of the absorption liquid is effectively reduced, the absorption ability of the emulsified microbubble is strong, and the desorption operation is easy. CO of the present invention 2 Absorbing media can effectively solve CO 2 emission problem.
Description
technical field [0001] The present invention relates to the production of CO with multiple compounds 2 Absorbent methods, specifically using MEDA, DEA, NaOH, nanoscale TiO 2 Mixed with distilled water, its CO 2 High absorption rate, fast absorption speed, can effectively reduce the circulation of absorption liquid, strong absorption ability to emulsified microbubbles, can effectively solve CO 2 emission problem. The invention belongs to the field of resource environment. Background technique [0002] Carbon dioxide has the function of heat preservation, which will gradually increase the temperature of the earth's surface. In the past 100 years, the global temperature has risen by 0.6°C. If this continues, it is estimated that by the middle of the 21st century, the global temperature will rise by 1.5-4.5°C. The sea level rise caused by the greenhouse effect will also have a huge impact on the living environment of human beings. The ice in the polar oceans will also all ...
Claims
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Application Information
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