权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Engineering Research Equipment Grant: Mass Particulate/ Organic Chlorine Monitoring System

工程研究设备资助：质量颗粒物/有机氯监测系统

基本信息

批准号：
8906465
负责人：
Elmar Altwicker
金额：
$ 2.5万
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：
1989
资助国家：
美国
起止时间：
1989-07-01 至 1991-06-30
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=8906465&HistoricalAwards=false
关键词：
Engineering Research Equipment Grant Mass

项目摘要

This proposal requests a real time mass monitor for the measurement of particles from a model combustor. The particle mass monitor is to be coupled to a halogen-specific detector for the analysis of organochlorine compounds, in particular polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF). There is evidence that the formation of PCDD/PCDF may occur heterogeneously and may be catalyzed over fly ash. Rate data for these complicated reactions are virtually nonexistent. A (almost) real time mass monitor would measure particles coming off the combustor (soot, fly ash) and enable the determination of mass rate of particle accumulation, total particle mass, and particle concentrations. If one or more of these measures correlate with levels of PCDD/PCDF or their precursors, a better understanding of the heterogeneous processes leading to their formation may be obtained. The equipment purchased will complement and greatly expand the capability to perform quantitative experiments aimed at understanding the formation of PCDD's and PCDF's from the combustion of chlorine containing fuels. A better understanding of the conditions under which PCDD and PCDF are formed is vital for meaningful incinerator design improvements that minimize their emission to the atmosphere.

该方案要求使用实时质量监测器来测量模型燃烧室中的颗粒物。颗粒质量监测器将与卤素专用检测器连接，用于分析有机氯化合物，特别是多氯二苯并对二恶英(PCDD)和多氯二苯并呋喃(PCDF)。有证据表明，多氯二苯并二恶英/多氯二苯并呋喃的形成可能是非均相发生的，并可能在飞灰上被催化。这些复杂反应的速率数据实际上是不存在的。一个(几乎)实时的质量监测器将测量从燃烧室出来的颗粒(烟灰、飞灰)，并能够确定颗粒累积的质量速率、总颗粒质量和颗粒浓度。如果这些措施中的一项或多项与多氯二苯并二恶英/多氯二苯并呋喃或其前体的水平相关，则可更好地了解导致其形成的不同过程。购买的设备将补充并大大扩展进行定量实验的能力，这些实验旨在了解含氯燃料燃烧时多氯二苯并二恶英和多氯二苯并呋喃的形成。更好地了解多氯二苯并二恶英和多氯二苯并呋喃的形成条件，对于有意义地改进焚烧炉设计，最大限度地减少它们向大气的排放至关重要。