Fast co-pyrolysis of low density polyethylene and biomass residue for oil production
Fast co-pyrolysis of low density polyethylene and biomass residue for oil production
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DOI：
10.1016/j.enconman.2016.05.008
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发表时间：
2016-07
影响因子：
10.4
通讯作者：
Jingxuan Yang;J. Rizkiana;W. Widayatno;Surachai Karnjanakom;M. Kaewpanha;Xiaogang Hao;A. Abudula
中科院分区：
文献类型：
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作者：
Jingxuan Yang;J. Rizkiana;W. Widayatno;Surachai Karnjanakom;M. Kaewpanha;Xiaogang Hao;A. Abudula
采用下拉管反应器对低密度聚乙烯（LDPE）与三种生物质进行共热解。通过对比实验油的相对产率和油的特性，以及根据混合油中各组分的热解结果计算出的油的相对产率和特性，研究了增效效应。研究发现，共热解过程中油的相对产率在600℃时达到最大值，明显高于生物质或LDPE单独热解的最佳温度。虽然生物质中的无机元素促进了LDPE的分解，但由于LDPE的分解产物与生物质进一步反应，产生了更多分子量更大的有机物（>C12）。协同作用对脂肪族化合物的产生是积极的。然而，这对芳香族化合物的生产可能是积极的，也可能是消极的，这取决于原料中的生物质类型。最终共热解油中醛类、酸类、醚类、呋喃类、酮类、酚类和糖类的脱除效果显著，醇类的脱除效果显著。
Co-pyrolysis of low density polyethylene (LDPE) with three kinds of biomass was performed in a dropdown tube reactor. The synergistic effect was investigated by comparing the experimental relative yield and characteristics of oil with the calculated ones based on the results from the pyrolysis of the individual components in the mixture. It is found that the maximum oil relative yield in the case of co-pyrolysis process was obtained at 600 °C, which was significantly higher than the optimum temperature of biomass or LDPE pyrolysized alone. Although the inorganic elements in biomass improved the decomposition of LDPE, more organics with larger molecule weight (>C12) were produced due to the further reaction between the decomposition products from LDPE and biomass. The synergistic effect was positive for the production of aliphatic compounds. However, it could be positive or negative for the production of aromatic compounds, which depended on the type of biomass in the feedstock. The significant removal of aldehydes, acids, ethers, furans, ketones, phenols and sugars from the final co-pyrolysis oil, in which there was a significant increase of alcohols, was achieved.