...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Fluidized bed desulfurization using lime obtained after slow calcination of limestone particles
【24h】

Fluidized bed desulfurization using lime obtained after slow calcination of limestone particles

机译：使用石灰石颗粒缓慢煅烧后获得的石灰进行流化床脱硫

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this work we have tested the fluidized bed desulfurization performance of lime particles obtained by means of a limestone slow calcination pre-treatment technique. This performance was compared to that of the parent untreated limestone particles. The occurrence of particle fragmentation and attrition during the fluidized bed operation was also investigated with a specific test protocol for both raw limestone and pre-treated lime sorbent. Two particle size ranges were tested under typical fluidized bed coal combustion conditions (T= 850 ℃; SO_2 - 1800 ppm). The experiments were complemented by porosimetric and morphological (SEM) analyses of the sorbent. Results showed that limestone pre-treatment was able to preserve the high mechanical strength of the parent particles as opposed to the fast in situ calcination typically active in fluidized beds. In addition, a high calcium reactivity and final conversion were observed for the pre-treated lime particles, leading to a SO_2 capture capacity per unit mass of sorbent much higher than that obtained with the untreated limestone. Simple economic evaluations suggest that the use of the pre-treated lime in place of limestone can involve significant economies for fluidized bed coal combustor operators.
机译：在这项工作中，我们测试了通过石灰石慢煅烧预处理技术获得的石灰颗粒的流化床脱硫性能。将该性能与未处理的母体石灰石颗粒的性能进行了比较。还使用针对生石灰石和预处理石灰吸附剂的特定测试方案研究了流化床操作过程中颗粒破碎和磨损的发生。在典型的流化床煤燃烧条件下（T = 850℃； SO_2-1800 ppm）测试了两个粒径范围。通过吸附剂的孔隙率和形态学（SEM）分析对实验进行了补充。结果表明，石灰石预处理能够保持母体颗粒的高机械强度，这与流化床中通常活跃的快速原位煅烧相反。另外，对于预处理的石灰颗粒观察到高的钙反应性和最终转化率，导致每单位质量吸附剂的SO 2捕获能力比未处理的石灰石获得的高得多。简单的经济评估表明，使用预处理石灰代替石灰石可为流化床煤燃烧器操作员带来显着的经济效益。

著录项

  • 来源
    《Fuel》 |2013年第12期|99-105|共7页
  • 作者

    Fabrizio Scala; Riccardo Chirone; Paola Meloni; Gianfranco Carcangiu; Marco Manca; Guido Mulas; Aldo Mulas;

  • 作者单位

    Istituto di Ricerche sulla Combustione - CNR, P.le Tecchio 80, 80125 Napoli, Italy;

    Istituto di Ricerche sulla Combustione - CNR, P.le Tecchio 80, 80125 Napoli, Italy;

    Universita di Cagliari, Dipartimento di Ingegneria Chimica e Materiali, Piazza d'Armi 1, 09127 Cagliari, Italy;

    Istituto di Ceoingegneria e Tecnologie Ambientali - CNR, Piazza d'Armi 1, 09127 Cagliari, Italy;

    Calddrata S.p.A - Via Valsugana 6, 09123 Cagliari, Italy;

    Calddrata S.p.A - Via Valsugana 6, 09123 Cagliari, Italy;

    Calddrata S.p.A - Via Valsugana 6, 09123 Cagliari, Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fluidized bed; Desulfurization; Limestone; Calcination; Attrition;

    机译：流化床脱硫石灰石;煅烧;减员;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号