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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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循环流化床燃煤锅炉中的汞迁移研究
, PP. 1276-1280
Keywords: 循环流化床,汞迁移,汞采样方法30b,汞质量平衡
Abstract:
？采用美国环保署颁布的吸附剂吸附汞采样方法30b(usepa40cfrpart6030b)采集燃煤烟气中汞。选择一循环流化床燃煤机组进行现场采样,吸附剂吸附烟囱处烟气中的汞、入炉煤样、锅炉底灰、静电除尘器飞灰等样品同时采集。对该机组中汞质量平衡率进行衡算,通过汞质量平衡率说明了汞采样方法的准确性和有效性。评价了汞在飞灰、底灰和烟气中的分布,循环流化床锅炉底灰中对脱汞的贡献率仅0.55%,飞灰脱除汞的效率高达83.37%,剩余的16.08%的汞排放入大气环境,表明循环流化床机组是有效控制汞的清洁煤燃烧技术。
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