...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel Processing Technology >Experimental study on combustion characteristics of pulverized coal preheated in a circulating fluidized bed
【24h】

Experimental study on combustion characteristics of pulverized coal preheated in a circulating fluidized bed

机译：循环流化床预热粉煤燃烧特性试验研究

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

A new technique to preheat pulverized coal in a circulating fluidized bed was adopted. This technique consists of two stages: the pulverized coal is first self-preheated in a circulating fluidized bed, and then the preheated fuel gas and char particles are burned out in a down-fired combustor under air-staging conditions. Experiments were conducted with two types of coals, two air ratios in the circulating fluidized bed and different air distributions in the combustor. The preheating and combustion processes ran stably under all experimental conditions. For both types of coals, the preheating temperatures in the circulating fluidized bed could be adjusted broadly within 800-950 degrees C, and the ratios of primary air could be lowered to 0.15. The combustion efficiency and nitrogen conversion were remarkably influenced by the air distribution, and were controlled above 98% and below 10% respectively, although the two targets could not be simultaneously achieved.
机译：采用一种在循环流化床中预热粉煤的新技术。 该技术由两个阶段组成：粉煤首先在循环流化床中自我预热，然后在空气分期条件下，预热的燃料气体和炭颗粒在下燃烧的燃烧器中燃烧。 用两种类型的煤进行实验，在循环流化床和燃烧器中的不同空气分布中进行两种空气比。 在所有实验条件下，预热和燃烧过程稳定地运行。 对于两种类型的煤，循环流化床中的预热温度可以在800-950摄氏度范围内宽，初级空气的比率降至0.15。 燃烧效率和氮转化物显着受到空气分布的影响，并且分别控制在98％和低于10％以上，尽管不能同时实现两种靶标。

著录项

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