Thermal and catalytic decomposition behavior of PVC mixed plastic waste with petroleum residue
Thermal and catalytic decomposition behavior of PVC mixed plastic waste with petroleum residue
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DOI：
10.1016/j.jaap.2004.12.010
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发表时间：
2005-08-01
影响因子：
6
通讯作者：
Siddiqui, MN
中科院分区：
文献类型：
--
作者：
Ali, MF;Siddiqui, MN
单独和与石油残渣混合的 PVC 混合塑料废物的热解和加氢热解在 N-2 气体下在 150 和 350 ℃以及在 6.5 MPa H-2 气压下在 430 ℃下进行。塑料废物在热分解和催化分解过程中的行为也在单阶段和两阶段反应过程中进行了研究。在单独的热解过程中，石油残渣和聚苯乙烯（PS）均超过90%转化为液态和气态产物，而低密度聚乙烯（LDPE）和高密度聚乙烯（HDPE）产生较低转化率的产物，而聚丙烯（PP）和聚氯乙烯（PVC）在某处提供中等到高转化率的产物。在单级热解反应中，在N-2气体下，用石油残渣在150和430摄氏度下加工PVC在玻璃反应器中每个温度下 1 小时。模型 PVC 和废 PVC 在从玻璃反应器获得的产品分布中表现出轻微的差异。在两阶段工艺中，模型PVC、真空瓦斯油（VGO）和多种不同的催化剂在不锈钢高压釜微管式反应器中在N2气流下在350℃下反应1小时，在950psi（6.5MPa）H-2压力下在430℃下反应2小时。值得注意的是，获得了不同的产品分布。在所使用的催化剂中，流化催化裂化（FCC）和加氢裂化催化剂（HC-1）在生产液体燃料（己烷可溶）材料方面最有效。研究表明，PVC与VGO的催化共处理是一种可行的工艺，通过该工艺可以将PVC和VGO材料转化为运输燃料。 (C) 2005 Elsevier B.V. 保留所有权利。
The pyrolysis and hydropyrolysis of PVC mixed plastic waste alone and with petroleum residue was carried out at 150 and 350 degrees C under N-2 gas and at 430 degrees C under 6.5 MPa H-2 gas pressure. The behavior of plastic waste during thermal and catalytic decomposition has also been studied in single- and two-stage reaction processes. In the individual pyrolysis process, both the petroleum residue and polystyrene (PS) undergo more than 90% conversion to liquid and gaseous products, whereas low-density polyethylene (LDPE) and high-density polyethylene (HDPE) yielded lower conversions products, and polypropylene (PP) and polyvinyl chloride (PVC) afforded somewhere a moderate to high conversion products.In a single-stage pyrolysis reaction, PVC was processed with petroleum residue at 150 and 430 degrees C, under N-2 gas for 1 h at each temperature in a glass reactor. The model PVC and waste PVC showed slight variations in the products distribution obtained from the glass reactor. In two-stage process, model PVC, vacuum gas oil (VGO) and a number of different catalysts were used in a stainless steel autoclave micro tubular reactor at 350 degrees C under the stream of N, gas for 1 h and at 430 degrees C under 950 psi (6.5 MPa) H-2 pressure for the duration of 2 h. Significantly, different products distributions were obtained. Among the catalysts used, fluid catalytic cracking (FCC) and hydrocracking catalysts (HC-1) were most effective in producing liquid fuel (hexane soluble) materials. The study shows that the catalytic coprocessing of PVC with VGO is a feasible process by which PVC and VGO materials can be converted into transportation fuels. (C) 2005 Elsevier B.V. All rights reserved.