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Preparation method and application of modified calcium hydroxide
The invention relates to the field of industrial dechlorination, and particularly discloses a preparation method and application of modified calcium hydroxide. According to the preparation method, mixed water, ethyl alcohol and triethanolamine are used as a digestion solution, the digestion solution is mixed with calcium oxide particles for a digestion reaction, modified calcium hydroxide is obtained, the added ethyl alcohol and triethanolamine can effectively improve the dispersion degree of the calcium oxide particles, the severe degree of the digestion reaction is relieved, and the calcium oxide particles can be effectively dispersed. The specific surface area of the obtained calcium hydroxide is increased; the surface property is improved. The modified calcium hydroxide prepared by the method has a relatively high specific surface area and a rich pore structure, is beneficial to contact with hydrogen chloride in flue gas, and improves the dechlorination performance. When the modified calcium hydroxide is used for treating flue gas, most hydrogen chloride can be removed within a short contact time, good dechlorination efficiency is shown, and actual use is facilitated.
本发明涉及工业脱氯领域，具体公开了一种改性氢氧化钙的制备方法及应用。该制备方法通过混合水、乙醇和三乙醇胺作为消化溶液，并使用该消化溶液与氧化钙颗粒混合进行消化反应，得到改性氢氧化钙，添加的乙醇和三乙醇胺能够有效提高氧化钙颗粒的分散程度，减缓消化反应的剧烈程度，提高所得氢氧化钙的比表面积并改善表面性质。由该方法制备得到的改性氢氧化钙，具有较高的比表面积和丰富的孔道结构，有利于与烟气中氯化氢的接触，提高脱氯性能。使用该改性氢氧化钙处理烟气，能在较短的接触时间内脱除大部分氯化氢，表现出较好的脱氯效率，有利于实际使用。
Preparation method and application of modified calcium hydroxide
The invention relates to the field of industrial dechlorination, and particularly discloses a preparation method and application of modified calcium hydroxide. According to the preparation method, mixed water, ethyl alcohol and triethanolamine are used as a digestion solution, the digestion solution is mixed with calcium oxide particles for a digestion reaction, modified calcium hydroxide is obtained, the added ethyl alcohol and triethanolamine can effectively improve the dispersion degree of the calcium oxide particles, the severe degree of the digestion reaction is relieved, and the calcium oxide particles can be effectively dispersed. The specific surface area of the obtained calcium hydroxide is increased; the surface property is improved. The modified calcium hydroxide prepared by the method has a relatively high specific surface area and a rich pore structure, is beneficial to contact with hydrogen chloride in flue gas, and improves the dechlorination performance. When the modified calcium hydroxide is used for treating flue gas, most hydrogen chloride can be removed within a short contact time, good dechlorination efficiency is shown, and actual use is facilitated.
本发明涉及工业脱氯领域，具体公开了一种改性氢氧化钙的制备方法及应用。该制备方法通过混合水、乙醇和三乙醇胺作为消化溶液，并使用该消化溶液与氧化钙颗粒混合进行消化反应，得到改性氢氧化钙，添加的乙醇和三乙醇胺能够有效提高氧化钙颗粒的分散程度，减缓消化反应的剧烈程度，提高所得氢氧化钙的比表面积并改善表面性质。由该方法制备得到的改性氢氧化钙，具有较高的比表面积和丰富的孔道结构，有利于与烟气中氯化氢的接触，提高脱氯性能。使用该改性氢氧化钙处理烟气，能在较短的接触时间内脱除大部分氯化氢，表现出较好的脱氯效率，有利于实际使用。
Preparation method and application of modified calcium hydroxide
一种改性氢氧化钙的制备方法及应用
LI MIN (author) / SHAO YUNXIA (author) / YANG CHUNZHEN (author)
2025-01-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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