Development of Conversion Process of Waste Plastics Mixture Contained in Household Waste to Fuels

生活垃圾中的废塑料混合物转化为燃料的工艺开发

• 批准号: 08555188
• 负责人: HASHIMOTO Kenji
• 金额: $ 9.86万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08555188/
• 关键词: Waste plastics; Chemical recycle; Pyrolysis; Catalytic cracking; Iron Catalyst; Kerosene; Zeolite catalyst; Steam; 連続熱分解; 水蒸気; 触媒分解; 燃料油; PET; PVC; 鉄触媒

Increasing amount of waste plastics which causes serious pollution problem is a cheap and abundant source of chemicals and energy. The chemical recycling method, which converts waste plastics to useful hydrocarbons and monomers of the plastics is recognized as a useful approach. The waste generated from factories is almost a specific resin, and the chemical recycle technology is being established for each plastics. Hoever, the waste generated from household is mixture of the waste plastics, furthermore contain large amount of moisture and refuse such as metal and bones. The technology developed for each plastics from factories is scarcely applicable for the waste from household. The main objective of this work is to develop a chemical recycle technology to recover useful hydrocarbons from these waste plastics from household. Through the research work conducted in this project, the following results were obtained :1.There are different pyrolytic mechanisms corresponding to the kind of p … More lastics, leading to the difficulty to establish the effective method to pyrolyze the mixture of plastics. In view of the moisture in the waste and the chemical bonds such as ester and ether in plastics, we develop a new pyrolysis method, with which the hydrolysis of plastics is enhanced in steam atmosphere. Under the conditions, the decomposition rate of plastics is accelerated and no carbonaceous residue is left. Furthemore, the apparent pyrolysis rates of different plastics look like almost the same rate.2.Sublimate materials, such as terephthalic acid are generated from PET,PBT and thermo-plasticizer, cause a serious pipe-blockage for plants of the chemical recycle. We succeeded to prepare an iron catalyst which effectively converted sublimate materials into useful chemicals, e.g.phenol, cresol and benzene. The continuous decomposition of the mixture of PE and PET was conducted using the catalyst. There was no sublimate materials in the product. The oil obtained was cracked over Ni/REY zeolite catalyst, producing kerosene. Less

造成严重污染问题的日益增多的废塑料是一种廉价而丰富的化学品和能源来源。将废塑料转化为有用的碳氢化合物和塑料单体的化学回收方法被认为是一种有用的方法。工厂产生的废物几乎是一种特定的树脂，每种塑料的化学回收技术正在建立。然而，家庭产生的垃圾是废塑料的混合物，而且含有大量的水分和金属、骨头等垃圾。为工厂生产的每一种塑料开发的技术几乎不适用于家庭生产的废物。本工作的主要目的是开发一种化学回收技术，从这些家用废塑料中回收有用的碳氢化合物。通过本项目的研究工作，获得了以下结果：1。不同种类的塑料有不同的热解机理，导致难以建立有效的塑料混合物热解方法。针对废塑料中的水分和塑料中存在的酯、醚等化学键，提出了一种新的热解方法，该方法在蒸汽气氛中促进了塑料的水解。在此条件下，塑料的分解速度加快，不留下碳质残留物。此外，不同塑料的表观热解速率几乎相同。PET、PBT和热塑性增塑剂产生的对苯二甲酸等升华物质对化工回收工厂的管道堵塞造成了严重的影响。我们成功地制备了一种铁催化剂，它能有效地将升华材料转化为有用的化学品，如苯酚、甲酚和苯。用该催化剂对PE和PET的混合物进行了连续分解。产品中没有升华物质。得到的油在Ni/REY沸石催化剂上裂解，生产煤油。少

项目成果

橋本: "廃プラスチックからのガソリン製造技術" 工業材料. 45. 119-123 (1997)

桥本：“废塑料生产汽油技术”工业材料45。119-123（1997）。

K.Hashimoto: "Production of Gasoline from Waste Plastics." Industrial Materials. Vol.45. 119-123 (1997)

K.Hashimoto：“利用废塑料生产汽油。”

橋本: "ポリエチレンテレフタレート(PET)からの燃料油の製造" コンバーテック(Converting Technology). no.2. 40-41 (1996)

Hashimoto：“用聚对苯二甲酸乙二醇酯（PET）生产燃料油”转换技术第 2 期（1996 年）。

K.Hashimoto: "Improvement of Technology for Recovery of Oil from Waste Plastics." Polimer. Vol.45. 311-315 (1996)

K.Hashimoto：“废塑料回收油技术的改进。”

T.Masuda: "Degradation of Waste Polythylene Terephthalate-Minimizing Carbonaceous Residue-" 7th Asian Pacific Confederation,Chem.Eng.(Taipei). 1. 94-98 (1996)

T.Masuda：“废聚对苯二甲酸乙二醇酯的降解-最小化碳质残留物-”第七届亚太化学工程联合会，化学工程（台北）。