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首页> 外文会议>The 5th International Symposium on Feedstock and Mechanical Recycling of Polymeric Materials(ISFR2009)（第五届高分子材料回收国际研讨会） >PYROLYSIS OF MIXED PLASTICS IN THE FLUIDIZED BED USING HARD BURNT LIME AS BED MATERIAL
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PYROLYSIS OF MIXED PLASTICS IN THE FLUIDIZED BED USING HARD BURNT LIME AS BED MATERIAL

机译：以硬质石灰作为床身材料热解流化床中的混合塑料

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A mixture consisting of 40 wt% PS, 20 wt% PE, 20 wt% PP and 15 wt% PET were pyrolyzed in the presence of both steam and nitrogen, using a fluidized bed reactor with hard burnt lime (HBL) as bed material. The experiments were carried out at 600 ℃ and 700 ℃. In opposite to soft burnt lime, HBL showed good fluidizing properties and little erosion. Since both CaO and Ca(OH)2 are widely used as aggregates in order to fix HC1 and catalyze the degradation of organic acids, the purpose of this research was the investigation of the impact on the product distribution and the ability of HBL to support the degradation of PET. Compared with experiments applied in the presence of quartz sand, the gas yield increased, while the wax fraction was strongly reduced. In the presence of HBL, the benzene yield rose strongly due to the decarboxylation of PET.
机译：使用流化床反应器，以硬质生石灰（HBL）作为床层材料，在水蒸气和氮气的存在下，热解由40 wt％PS，20 wt％PE，20 wt％PP，15 wt％PET组成的混合物。实验在600℃和700℃下进行。与软烧石灰相反，HBL表现出良好的流化性能且几乎没有侵蚀。由于CaO和Ca（OH）2均被广泛用作聚集体以固定HCl并催化有机酸的降解，因此本研究的目的是研究对产物分布的影响以及HBL支撑HBL的能力。 PET的降解。与在石英砂存在下进行的实验相比，气体收率提高了，而蜡含量却大大降低了。在HBL的存在下，由于PET的脱羧，苯的收率大大提高。

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