| 飞灰浆液脱硫特性的初步研究 |
| 摘要点击 2022 全文点击 2023 投稿时间：1998-03-16 |
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| 中文关键词 飞灰 浸出液 Fe3+ 脱硫反应 催化氧化 现场试验 大气化学 |
| 英文关键词 fly ash leachate Fe3+ desulfurization catalyzed oxidation site test atmospheric chemistry |
| DOI 10.13227/j.hjkx.19990104 |
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| 中文摘要 |
| 对飞灰中铁等离子的浸出特性进行了正交试验,pH对其浸出量大小有显着影响,在试验pH下限Fe3+的浓度可达到30mg/L.Fe3+溶液和飞灰浸出液的脱硫试验表明,Fe3+的脱硫反应符合过渡态催化氧化机理,对SO2吸收量的最佳增强作用出现在pH=2-3.在一台4t/h采暖锅炉上还进行了利用飞灰烟气脱硫的现场试验,结果证实在酸性条件下系统可达到中等程度的脱硫效果。 |
| 英文摘要 |
| The orthogonal experiment was designed first to study the leaching of Fe ion in coal fired fly ash solution.The pH value was found to be detrimental,and Fe3+ concentration in leachate could reach about 30mg/L in the low limit of pH.Then,the another lab experimental was conducted to investigate the SO2 absorption with Fe3+ solution and fly ash acid leachate,proving the reaction mechanism of transition metal catalyzed oxidation of SO2.From the experiment,the maximum enhancement of absorption arose within the pH ranges of 2.0—3.0 for the solution and leachate.In sequence,an on site test of treat flue gas from a 4t/h space heating boiler was put forward,in which the slurry of fly ash captured from flue gas was served as absorbent.The results showed a medium order efficiency of SO2 removal could be attained with this system. |
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