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首页> 外文期刊>Journal of Applied Polymer Science >Influence of Metal-Oxide-Supported Bentonites on the Pyrolysis Behavior of Polypropylene and High-Density Polyethylene
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Influence of Metal-Oxide-Supported Bentonites on the Pyrolysis Behavior of Polypropylene and High-Density Polyethylene

机译：金属氧化物膨润土对聚丙烯和高密度聚乙烯热解行为的影响

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摘要

In this article, we report on the pyrolysis of polypropylene (PP) and high-density polyethylene (HDPE) in the absence and presence of plain and metal-oxide-impregnated bentonite clays [BCs; acid-washed bentonite clay (AWBC), Zn/AWBC, Ni/AWBC, Co/AWBC, Fe/AWBC, and Mn/AWBC] into useful products. Thermal and catalytic runs were performed at 300 degrees C in the case of PP and at 350 degrees C in the case of HDPE for a contact time of 30 min. The effects of different catalysts and their concentrations on the overall yields and the yields of liquid, gas, and residue were studied. The efficacy of each catalyst is reported on the basis of the highest liquid yields (in weight percentage). The derived liquid products were analyzed by Fourier transform infrared spectroscopy and gas chromatography-mass spectroscopy; this confirmed the presence of paraffins, olefins, and naphthenes. The results indicate the catalytic role of impregnated BCs compared to plain BC with the optimum efficiency shown by Co/AWBC in the case of PP and Zn/AWBC in the case of HDPE toward the formation of liquid products in a desirable C range with the enrichment of olefins and naphthenes in the case of PP and paraffins and olefins in the case of HDPE compared to the thermal run. VC 2014 Wiley Periodicals, Inc.
机译：在本文中，我们报道了在不存在和存在普通和金属氧化物浸渍膨润土的情况下，聚丙烯（PP）和高密度聚乙烯（HDPE）的热解。酸洗膨润土（AWBC），Zn / AWBC，Ni / AWBC，Co / AWBC，Fe / AWBC和Mn / AWBC]制成有用的产品。在PP中，热和催化运行在300摄氏度下进行，在HDPE中，热和催化运行在350摄氏度下进行30分钟的接触时间。研究了不同催化剂及其浓度对总收率以及液体，气体和残渣收率的影响。根据最高液体产率（以重量百分比计）报告了每种催化剂的功效。衍生的液体产物通过傅里叶变换红外光谱和气相色谱-质谱分析。这证实了石蜡，烯烃和环烷烃的存在。结果表明，与普通BC相比，浸渍的BCs具有催化作用，对于PP而言，Co / AWBC表现出最佳效率;对于HDPE而言，对于Zn / AWBC而言，表现出最佳的效率，随着浓缩作用形成了液体产品与热运行相比，PP中使用的烯烃和环烷烃的含量，HDPE中使用的是石蜡和烯烃的含量。 VC 2014 Wiley期刊公司

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