| Fe2O3对型煤固硫作用的机理探讨 |
| 摘要点击 653 全文点击 1781 投稿时间：1996-08-30 |
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| 中文关键词 型煤 固硫 三氧化二硫 硫酸钙 氧化钙 |
| 英文关键词 coal briquet sulphur capture Fe2O3 |
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| 中文摘要 |
| 根据煤中硫的着火点,发现硫的固定主要发生在温度低于500℃的阶段,升温时间应小于30min·Fe2O3用量增多,CaSO3转化生成CaSO4的量增多;通过CaO+SO2+0.5O2→CaSO4的反应来模拟实际的煤燃烧时硫的固定过程,发现Fe2O3的加入对硫的固定起着较大的促进作用,而且Fe2O3主要是促进CaO+SO2→CaSO3这一反应过程。 |
| 英文摘要 |
| According to the ignition point of sulphur in coal,the sulphur capture reaction process was divided into two stages in this paper.It was found that sulphur capture in coal ash mainly happened in stage of below 500℃.Relationship between time of raising tempera ture and fraction of sulphur capture was obtained that time of raising temperature must be below 30 min.It was found that the more Fe2O3 was used,the more CaSO3 changed into CaSO4.The actual process of sulphur captured in coal ash was simulated through the reaction CaO+SO2+0.5O2→CaSO4. At last some special experiments were designed and proved that Fe2O3 mainly promoted the reaction CaO+SO2→CaSO3. |
