| 粉煤流化床燃烧(PC-FBC)中SO2的生成特性 |
| 摘要点击 1878 全文点击 1671 投稿时间：1999-06-03 |
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| 中文关键词 煤粉 流化床 燃烧 SO2生成特性. |
| 英文关键词 pulverized coal,fluidized bed,combustion,SO2 production characteristics |
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| 中文摘要 |
| 粉煤流化床（ＰＣ－ＦＢ）是一项燃烧效率高，同时实现炉内脱硫、低ＮＯx 和Ｎ2Ｏ排放的新型高效、清洁煤燃烧技术．在一座０．３ＭＷ 的试验台上，系统研究了其ＳＯ2生成与分布特性．主要包括：ＰＣ－ＦＢＣ的ＳＯ2生成特性以及床层温度Ｔb、流化速度ｕ0、二次风率Ｒ2、二次风投入位置、二次风喷射角度、喷口尺寸对ＳＯ2生成与分布的影响．试验燃用煤种含硫１．７１％ ．在Ｔb＝ ８２０～９２０℃，ｕ0＝ １．２～３．３ｍ ／ｓ，Ｒ2＝ ３０％ ～７０％ 的条件下，流化床燃烧区（ＦＢＣＺ）出口ＳＯ2浓度及炉膛出口ＳＯ2浓度ＳＯ″2分别为５２０～６００ｍ ｌ／ｍ3和１２８０～１３００ｍ ｌ／ｍ３． |
| 英文摘要 |
| Pulverized Coal fluidized bed(PC FB)is a new clean coal combustion technology,which can get a high combustion effciency and in furnace desulphuration low NOx and N2O emission In this researching work,production and distribution characteristics of SO2 in a 0.3MW PC FB experimental rig were conducted systemically The influences of many factors,such as bed temperature(Ｔb),fluidizing velocity(ｕ0),secondary air ratio( R2),every layer′s secondary air ratio( R2i%) etc. were investigated When Ｔb=820～900℃,ｕ0=1.2～1.3m/s, R2=30%～70%,SO2 concentrations were 520～600 ml/m3 and 1280～1300 ml/m3 at exit of fluidized bed combustion zone and exit of fluidized combustion zone. |
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