Pollutant Formation in Combustor Cool Zone

燃烧室冷却区污染物的形成

• 批准号: 0202764
• 负责人: Sukhjinder Sidhu
• 金额: $ 22.5万
• 依托单位: University of Dayton
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-07-01 至 2005-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0202764&HistoricalAwards=false
• 关键词: Pollutant; Formation; Combustor; Cool; Zone

This project addresses the formation of pollutants (other than dioxins and furans) in the cool zone--the region downstream from the flame in a combustor where radical quenching and surface catalysis are the dominant modes of reaction. A dual-chamber reactor is used in which the first chamber houses a diffusion flame and the second chamber (simulating the cool zone) can be configured to study gas-phase reactions, wall and surface effects, or catalysis by entrained particles. Effluents from both chambers are analyzed by gas chromatography. The study uses methane as a fuel pure and doped with ethylene, benzene or trichlorobenzene. Dopants can also be added to the effluent of the combustor, hydrogen chloride, nitrogen oxides, and water are used. Surfaces studied include silica, solica doped with copper oxide or iron oxide, a model fly ash, and real fly ashes from a municipal solid-waste incinerator and a coal combustor.This effort provides fundamental data on formation of pollutants and provides a rational basis for strategies to reduce pollutant emissions from incinerators, power and heating plants, and industrial operations.

该项目研究了冷却区（燃烧室火焰下游区域）中污染物（二恶英和呋喃除外）的形成，在该区域中，自由基淬灭和表面催化是主要的反应模式。 使用双室反应器，其中第一室容纳扩散火焰，第二室（模拟冷却区）可以被配置为研究气相反应、壁和表面效应或夹带颗粒的催化作用。 通过气相色谱法分析两个室的流出物。 这项研究使用纯甲烷作为燃料，并掺杂了乙烯、苯或三氯苯。 还可以将掺杂剂添加到燃烧器的流出物中，使用氯化氢、氮氧化物和水。 研究的表面包括二氧化硅，solica掺杂氧化铜或氧化铁，模型飞灰，和真实的飞灰从城市固体废物焚烧炉和燃煤combuster.This努力提供的污染物形成的基本数据，并提供了一个合理的基础上的战略，以减少污染物的排放，从焚烧炉，发电厂和供热厂，以及工业操作。