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首页> 外文期刊>Journal of Applied Polymer Science >Study on characterization of pyrolysis and hydrolysis products of poly(vinyl chloride) waste
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Study on characterization of pyrolysis and hydrolysis products of poly(vinyl chloride) waste

机译：聚氯乙烯废料热解水解产物的表征研究

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Poly(vinyl chloride) PVC pyrolysis and hydrolysis are conducted in a fixed bed reactor and in an autoclave, respectively, under different operating conditions such as the temperature and time. The product distribution is studied. For the PVC pyrolysis process, the main gas product is HCl (55% at 340degreesC), there is 9% hydrocarbon gas (C-1-C-5), the liquid product fraction is about 5% (at 340degreesC), and the solid residue fraction is about 31% (at 340degreesC). For the hydrolysis process, the main gas product is HCl (55.8% at 240degreesC) and the solid residue is about 49.6% (at 240degreesC). The pyrolysis liquid product is analyzed by using gas chromatography with magic-angle spinning. Aromatic hydrocarbons are the main class (90%), of which the major part is benzene (33%). The residue produced through pyrolysis and hydrolysis is investigated by high-resolution solid-state C-13-NMR. These details revealed by the high-field NMR spectra provide important information about the chemical changes in the PVC pyrolysis and hydrolysis process. The mechanism of PVC hydrolysis dechlorination is also discussed. (C) 2003 Wiley Periodicals, Inc. [References: 16]
机译：聚（氯乙烯）PVC热解和水解分别在固定床反应器和高压釜中，在不同的操作条件下进行，例如温度和时间。研究产品分布。对于PVC热解工艺，主要气体产物为HCl（在340摄氏度时为55％），有9％的烃类气体（C-1-C-5），液体产物分数约为5％（在340摄氏度时），固体残余物分数约为31％（在340摄氏度时）。对于水解过程，主要气体产物为HCl（240℃下为55.8％），固体残留物约为240.C时为49.6％。通过使用具有魔角旋转的气相色谱法分析热解液体产物。芳香烃是主要类别（90％），其中主要部分是苯（33％）。通过高分辨率固态C-13-NMR研究了通过热解和水解产生的残留物。高场NMR光谱揭示的这些细节提供了有关PVC热解和水解过程中化学变化的重要信息。还讨论了PVC水解脱氯的机理。 （C）2003 Wiley Periodicals，Inc. [参考：16]

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