Number of sulfuric acid plants using hydrogen peroxide tail gas absorption
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This post was last edited by in the blink of an eye on 2018-9-15 09:15. In recent years, an increasing number of sulfuric acid plants, especially small and medium-sized ones, have adopted hydrogen peroxide as a tail gas treatment method. The hydrogen peroxide tail absorption process has a short flow path; the resulting dilute acid can be used as water for dry absorption, with no by-products. Please have those forum members from factories that use hydrogen peroxide tail suction reply here; thank you.
The factories that use hydrogen peroxide for desulfurization, as known from available information, are as follows: 1. Shuangshi Fine Chemicals, 2. Yunxi Copper Industry, 3. Jinli Gold and Lead, 4. Wanyang Silver and Lead, 5. Yunnan Hongtai Bo
Guotou Jincheng uses hydrogen peroxide to absorb sulfuric acid exhaust gases, with a wet electrostatic precipitator following it. The transformation and temperature rise have already begun.
7. The 700,000 tons per year gold and copper smelting flue gas acid production facility at Shuikoushan Fifth Metallurgical Group in Hunan is also equipped with a hydrogen peroxide after-treatment system
8. Southeast Copper Industry: 2×800,000 tons/year of acid production from smelting flue gas, also using hydrogen peroxide after-treatment.
9. Jiangsu Suopu: 300,000 tons per year of sulfur-based sulfuric acid production 10. Hubei Zhongfu: 200,000 tons per year of sulfur-based sulfuric acid production
Does SDIC use ionic liquids?
The factories that use hydrogen peroxide for desulfurization, as is known, are as follows: 1. Shuangshi Fine Chemicals; 2. Yunxi Copper Industry; 3. Jinli Gold and Lead; 4. Wanyang Silver and Lead; 5. Yunnan Hongtaibo; 6. Yuguang Zinc Industry; 7. Yuguang Shares; 8. Zhicheng Gold and Lead
Hydrogen peroxide effectively recycles a portion of the SO2 gas back into the system, but this is possible only based on two key factors: 1. The raw materials contain very little water content, allowing the liquid resulting from absorption to be fully reused by the system; otherwise, the excess dilute acid would be even more difficult to handle than the waste fluid from the conventional tail gas absorption tower. 2. The conversion efficiency must meet the required standards, meaning that the SO2 content in the exhaust gases is low; otherwise, the gases after passing through hydrogen peroxide cannot be discharged in compliance with regulations, which will lead to a series of problems. In fact, I personally think that the exhaust gas, after being transformed and absorbed, contains very few impurities, so the gypsum produced should be of relatively high quality. It’s just that plaster is used less these days.
Additional: 9. Chuanjinuo； 10. Yunnan Hongtaibo Chemicals ； 11. Yimen Copper Industry