Hazardous air pollutant emissions from gas-fired combustion sources: emissions and the effects of design and fuel type.
Hazardous air pollutant emissions from gas-fired combustion sources: emissions and the effects of design and fuel type.
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DOI：
10.1016/s0045-6535(00)00249-6
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发表时间：
2001-02
期刊：
影响因子：
8.8
通讯作者：
Glenn C. England;Thomas P McGrath;L. Gilmer;James G Seebold;M. Lev-on;Timothy Hunt
中科院分区：
文献类型：
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作者：
Glenn C. England;Thomas P McGrath;L. Gilmer;James G Seebold;M. Lev-on;Timothy Hunt
锅炉、过程加热器、燃气轮机和固定式往复式发动机等燃气燃烧装置排放的空气中含有有害空气污染物（HAPs），这是《联邦清洁空气法》（CAA）规定的。本文介绍了最近完成的一项重大研究项目，旨在了解燃气锅炉和过程加热器的HAP排放，以及基于石油工业中使用的燃气外燃烧装置的现场排放测试的新的HAP排放因子。讨论了燃烧系统设计和运行参数对HAP排放的影响。来自燃气石油工业锅炉和加热器的现场测试数据表明，有机有机有害气体的排放水平普遍很低。对锅炉和过程加热器的排放数据进行比较，包括有无各种形式的nox排放控制装置，结果表明，由于工艺或燃烧器设计，有机HAP排放特征没有显著差异。不同燃烧器设计的研究试验结果也支持了这一结论。通过对天然气和各种石油工业过程气体燃烧装置的现场测试，以及有意改变气体成分的研究测试，确定有机HAP排放不受气体成分的显著影响。研究数据表明，只有在与燃烧不良相关的极端操作条件下（空气匮乏或过量空气燃烧），有机HAP排放水平才会升高。
Air emissions from gas-fired combustion devices such as boilers, process heaters, gas turbines and stationary reciprocating engines contain hazardous air pollutants (HAPs) subjected to consideration under the federal clean air act (CAA). This work presents a recently completed major research project to develop an understanding of HAP emissions from gas-fired boilers and process heaters and new HAP emission factors based on field emission tests of gas-fired external combustion devices used in the petroleum industry. The effect of combustion system design and operating parameters on HAP emissions determined by both field and research tests are discussed. Data from field tests of gas-fired petroleum industry boilers and heaters generally show very low emission levels of organic HAPs. A comparison of the emission data for boilers and process heaters, including units with and without various forms of NOxemission controls, showed no significant difference in organic HAP emission characteristics due to process or burner design. This conclusion is also supported by the results of research tests with different burner designs. Based on field tests of units fired with natural gas and various petroleum industry process gases and research tests in which gas composition was intentionally varied, organic HAP emissions were not determined to be significantly affected by the gas composition. Research data indicate that elevated organic HAP emission levels are found only under extreme operating conditions (starved air or high excess air combustion) associated with poor combustion.