CO2 capture using oxygen enhanced combustion strategies for natural gas power plants
CO2 capture using oxygen enhanced combustion strategies for natural gas power plants
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DOI：
10.1016/s0016-2361(02)00014-5
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发表时间：
2002-05
期刊：
影响因子：
7.4
通讯作者：
Yewen Tan;M. Douglas;K. Thambimuthu
中科院分区：
文献类型：
--
作者：
Yewen Tan;M. Douglas;K. Thambimuthu
本文介绍了一系列的实验进行了天然气在空气中，氧气和循环烟道气的混合物，称为O2/CO2循环燃烧。其目的是使烟道气富含CO2，以促进其捕获和封存。气体成分，火焰温度和热通量分布的详细测量是在CANMET的0.3MWth向下燃烧的垂直燃烧器内进行的，该燃烧器配有专有的中试规模燃烧器。连续监测烟道气组成。研究了二次流旋流和空气分级等燃烧器操作对火焰特性和NOx排放的影响。这项工作的结果表明，氧燃烧技术的基础上O2/CO2燃烧与烟气再循环提供了良好的潜力改造传统锅炉CO2减排。该技术的其他好处包括大幅减少甚至消除氮氧化物排放，由于更低的气体体积和更好的操作灵活性而提高工厂效率。
This paper describes a series of experiments conducted with natural gas in air and in mixtures of oxygen and recycled flue gas, termed O2/CO2recycle combustion. The objective is to enrich the flue gas with CO2to facilitate its capture and sequestration. Detailed measurements of gas composition, flame temperature and heat flux profiles were taken inside CANMET's 0.3MWth down-fired vertical combustor fitted with a proprietary pilot scale burner. Flue gas composition was continuously monitored. The effects of burner operation, including swirling of secondary stream and air staging, on flame characteristics and NOxemissions were also studied. The results of this work indicate that oxy–gas combustion techniques based on O2/CO2combustion with flue gas recycle offer excellent potential for retrofit to conventional boilers for CO2emission abatement. Other benefits of the technology include considerable reduction and even elimination of NOxemissions, improved plant efficiency due to lower gas volume and better operational flexibility.