Achievement of high CO2 concentration in the flue gas at slightly positive pressure during oxy-coal combustion in a 300 kWth furnace

Chung Cheng Chi, Ta Hui Lin, Wei Cheng Huang, Shuhn Shyurng Hou, Pai Yi Wang

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

Abstract This study explores the combustion characteristics of a 300 kWth air-firing furnace adapted for oxy-firing combustion. The influences of operating pressure and oxygen/recycled flue gas (RFG) blend ratio on the combustion characteristics of oxy-coal firing were examined, especially on the exhausted CO2 concentration. High purity CO2 (94.1%) at the exit of the system was achieved for oxy-coal combustion at the optimized operation conditions (i.e., an RFG flow rate of 227 Nm3/h, feeding rates of oxygen and coal of 42.5 Nm3/h and 21 kg/h, respectively, and a slightly positive pressure of +100 Pa). The achievement of 94.1% CO2 emission has great potential for reducing CO2 emissions by carbon capture and storage and thus mitigating global climate change. Moreover, compared with air-firing operation, an NO emission reduction of around 66% was obtained in the oxy-firing operation.

原文English
文章編號9515
頁(從 - 到)434-439
頁數6
期刊Fuel
160
DOIs
出版狀態Published - 2015 8月 17

All Science Journal Classification (ASJC) codes

  • 化學工程 (全部)
  • 燃料技術
  • 能源工程與電力技術
  • 有機化學

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