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为了对全氟己酮（Novec 1230）灭火剂高温下热分解性能进行研究，实验设计并搭建了一套具有原料控制输送、程序控制升温等功能的热分解试验系统，采用在线气相色谱（GC）、气相色谱/质谱（GC/MS）和KM900手持式烟气分析仪等手段，研究了全氟己酮灭火剂气体在管式反应器中滞留时间分别为2s和5s，热解温度分别为500℃，550℃，600℃，650℃，700℃和750℃时的热分解规律。实验结果表明：在500℃和550℃时，全氟己酮灭火剂化学性能较稳定，几乎没有热解；600℃时开始发生较明显的分解，超过650℃时发生剧烈的分解；分解产物主要包括一氧化碳、优尔氟丙烯、十氟丁烷和全氟异戊烷等主要气体产物，值得关注的是，热解产物中发现有剧毒的全氟异丁烯气体。全氟己酮的热分解程度随着热解温度和滞留时间的增加而增加；除全氟异戊烷外，生成的其他气体产物量，随着热解温度和滞留时间的增加而增加。6614
关键词 全氟己酮 热分解 热解温度 滞留时间 气体产物
毕业设计说明书（论文）外文摘要
Title The Study on the Thermal Decomposition of Novec 1230 Fire Extinguishing Agent
Abstract
To study the pyrolysis properties of C6F-Ketone fire extinguishing agent, an experimental research system with functions supplying raw material and controlling temperatures was designed and built. The thermal decomposition of C6F-Ketone was investigated over temperatures of 500℃, 550℃, 600℃, 650℃, 700℃ and 750℃ at 2s and 5s residence times. Meanwhile, gaseous products were analysed by online gas chromatography (GC), gas chromatography/mass spectrometry (GC/MS) and KM900 hand-held combustion analyzer etc. The results showed that ：(1) C6F-Ketone behaved relatively stable at 500℃ and 550℃, that is, it almost did not decompose. (2) The thermal decomposition began to occur obviously at 600℃ and became more intensive above 650℃. (3) The major thermal decomposition products of C6F-Ketone were carbon monoxide, hexafluoropropylene, perflubutane, 1,1,1,2,2,3,4,4,4-nonafluoro
-3-(trifluoromethyl) butane. It is notable that octafluoroisobutylene which is highly toxic was also found in gaseous products. As temperatures increased and residence times prolonged, the decomposition of C6F-Ketone began intensive and the amounts of most products also increased.
Keywords C6F-Ketone thermal decomposition pyrolysis temperature residence time gaseous products
目 次
1 绪论 1
1.1 研究背景 1
1.2 NOVEC 1230简介 2
1.3 国内外相关研究现状 4
1.4 本文开展的主要工作 5
2 全氟己酮高温热分解的实验研究 6
2.1 实验方案 6
2.2 实验仪器与药品 7
2.2.1 实验仪器 7
2.2.2 实验药品 7
2.3 主要测试条件 7
2.3.1 气相色谱仪（GC） 7
2.3.2 气相色谱/质谱联用仪（GC/MS） 8
2.3.3 KM900手持式烟气分析仪 8
2.4 实验准备 9
2.4.1 反应器恒温区的确定 9
2.4.2 蠕动泵流量的校正 9
2.4.3 热分解气体产物一氧化碳的确定 11