Global Reaction Kinetics of the Hetergeneous Formation of Polychlorinated Dibenzo-p-dioxins/Furans from Chlorophenols

氯酚多相生成多氯二苯并二恶英/呋喃的整体反应动力学

• 批准号: 9814345
• 负责人: Elmar Altwicker
• 金额: $ 21.2万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-06-01 至 2003-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9814345&HistoricalAwards=false
• 关键词: Global; Reaction; Kinetics; Hetergeneous; Formation

CTS-9814345AbstractThis is a study of one pathway to polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF), namely their formation from chlorophenols in the presence of catalytic surfaces. A differential flow reactor packed with "model" fly ash or fly ash from a municipal solid-waste incinerator is used. Realistic concentrations of chlorophenols are used. The role of oxygen is quantified, and mechanisms of formation of PCDD/F tested.Polychlorinated dibenzodioxins/furans (PCDD/F) are among the combustion byproducts produced by municipal solid-waste incinerators. They (or at least some of the isomers produced) are among the most toxic materials known; their control should be a public health priority. This research looks at the mechanism of their formation in order to establish approaches for control.

CTS-9814345摘要本文研究了多氯二苯并对二恶英（PCDD）和多氯二苯并呋喃（PCDF）的一种生成途径，即在催化表面存在下由氯酚生成PCDD和PCDF。 使用填充有“模型”飞灰或来自城市固体废物焚烧炉的飞灰的差流反应器。 使用实际浓度的氯酚。 氧气的作用是量化的，和PCDD/F的形成机制测试。多氯二苯并二恶英/呋喃（PCDD/F）是城市固体废物焚烧炉产生的燃烧副产品之一。 这些物质（或至少是所生产的某些异构体）属于已知毒性最大的物质;对它们的控制应是公共卫生的优先事项。 本研究着眼于其形成的机制，以建立控制方法。