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NO_x and SO_2 emissions from O_2/CO_2 recycle coal combustion

机译：O_2 / CO_2循环燃烧煤产生NO_x和SO_2排放

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摘要

Capturing CO_2 from conventional coal-fired power plant is very costly because of its relatively dilute concentration in the flue gas. One option to reduce the cost of gas separation is to increase CO_2 concentration in the flue gas by eliminating nitrogen before combustion and by recycling part of the flue gas. This scheme is known as O_2/CO_2 recycle combustion. The present work focuses on the implications of O_2/CO_2 recycle combustion on NO_x and SO_2 emissions. Two main types of experiments were performed: combustion in once-through O_2/CO_2 mixtures and experiments with recycled flue gas. Combustion in air was performed as a base case. For each experiment, NO_x and SO_2 were measured at several locations along the reactor and the experimental results are presented in this paper.
机译：从常规燃煤电厂捕获CO_2的成本非常高，因为其烟气中的浓度相对较低。降低气体分离成本的一种选择是通过在燃烧前消除氮气并回收一部分烟气来增加烟气中的CO_2浓度。这种方案称为O_2 / CO_2循环燃烧。目前的工作集中在O_2 / CO_2循环燃烧对NO_x和SO_2排放的影响上。进行了两种主要类型的实验：在一次性O_2 / CO_2混合物中燃烧和使用再循环烟气的实验。空气燃烧是基本情况。对于每个实验，均在反应器的多个位置测量了NO_x和SO_2，并在本文中给出了实验结果。

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