An overview on oxyfuel coal combustion—State of the art research and technology development

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• 作者：Terry Wall ; Yinghui Liu ; Chris Spero ; Liza Elliott ; Sameer Khare ; Renu Rathnam ; Farida Zeenathal ; Behdad Moghtaderi ; Bart Buhre ; Changdong Sheng ; Raj Gupta ; Toshihiko Yamada ; Keiji Makino ; Jianglong Yu
• 关键词：Oxyfuel coal combustion ; CO₂ capture ; Heat transfer ; CFD prediction ; Reactivity
• 刊名：Chemical Engineering Research and Design
• 出版年：2009
• 出版时间：August 2009
• 年：2009
• 卷：87
• 期：8
• 页码：1003-1016
• 全文大小：1941 K

文摘

Oxyfuel combustion is seen as one of the major options for CO₂ capture for future clean coal technologies. The paper provides an overview on research activities and technology development through a fundamental research underpinning the Australia/Japan Oxyfuel Feasibility Project. Studies on oxyfuel combustion on a pilot-scale furnace and a laboratory scale drop tube furnace are presented and compared with computational fluid dynamics (CFD) predictions. The research has made several contributions to current knowledge, including; comprehensive assessment on oxyfuel combustion in a pilot-scale oxyfuel furnace, modifying the design criterion for an oxy retrofit by matching heat transfer, a new 4-grey gas model which accurately predicts emissivity of the gases in oxy-fired furnaces has been developed for furnace modelling, the first measurements of coal reactivity comparisons in air and oxyfuel at laboratory and pilot-scale; and predictions of observed delays in flame ignition in oxy-firing.