Development of thermal recycling technology of expanded polystyrene container and its practical application

发泡聚苯乙烯容器热回收技术开发及其实际应用

• 批准号: 12660228
• 负责人: NAKAJIMA Michihiro
• 金额: $ 2.3万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12660228/
• 关键词: Expanded polystyrene (EPS); Petrochemical method; Recycle; Methylstyrene monomer (MSM); Methylstyrene dimer (MSD); Number average molecular weight; Viscometric property; Combustion gas; 低分子化; 再生油; 溶解特性; 燃焼特性; 燃焼ガス組成; 食品発泡スチロール; 熱分解; GPC; 減

The low-temperature petrochemical method of the expanded polystyrene (following, EPS) which we developed enabled EPS thermal decomposition at 200℃ or less. The method used α-methylstyrene monomer (MSM) and same dimer (MSD) as an additives. The viscosity of the fuel oil (following, recycled oil) made by adding MSM was low. The relationship between number average molecular weight (following, Mn) and viscosity of the recycled oil was clarified, when the ratio of MSM addition is fixed. Especially, the viscosity rose and varied, when the Mn of recycled oil was over 5000. And, the recycled oil heated over 60℃, viscometric property became unstable, and the reproductivity also lowered. Therefore, it is necessary to use the recycled oil under Mn : 5000 at its oil temperature 50℃ or less. In addition, it was possible to be the viscometric property as heavy oil by diluting the recycled oil (about Mn : 1000〜5000) at about 4 times in MSM. Though most of recycled oil was able to burn, when the kerosene burner burned this oil, a part of the recycled oil was the un-combustion. The temperature in the combustion chamber became over 1000℃, when the recycled oil was burnt in combustion chamber, and it was possible to be the complete combustion of recycled oil. In addition, the component of combustion gas such as CO, CO_2 and NO_x in combustion chamber was similar to the combustion condition of kerosene. In the future, developed EPS low temperature petrochemical method will be used practically.

我们开发的发泡聚苯乙烯（以下简称EPS）的低温石油化学方法使得EPS在200℃以下热分解。该方法使用α-甲基苯乙烯单体（MSM）及其二聚体（MSD）作为添加剂。添加MSM制成的燃料油（以下为再生油）的粘度较低。明确了在MSM添加比例一定的情况下，再生油的数均分子量（以下简称Mn）与粘度之间的关系。特别是当再生油的Mn超过5000时，粘度升高且变化。并且，再生油加热超过60℃，粘度性能变得不稳定，并且再现性也降低。因此，必须使用Mn：5000以下的再生油，油温50℃以下。另外，通过将回收油(Mn：1000〜5000左右)用MSM稀释4倍左右，可以得到与重油相同的粘度特性。虽然大部分回收油能够燃烧，但当煤油燃烧器燃烧这些油时，一部分回收油是未燃烧的。当回收油在燃烧室中燃烧时，燃烧室中的温度达到1000℃以上，并且回收油有可能完全燃烧。另外，燃烧室中CO、CO_2、NO_x等燃烧气体的成分与煤油的燃烧条件相似。今后，开发的EPS低温石化法将得到实际应用。

项目成果

中島教博, 柏嵜勝, 木村隆夫, 上園治郎, 伊庭慶昭: "廃発泡スチロール容器のサーマルリサイクルに関する研究(第2報)"農業機械学会誌. 65巻6号. 110-119 (2003)

Norihiro Nakajima、Masaru Kashiwazaki、Takao Kimura、Jiro Uezono、Yoshiaki Iba：“废弃聚苯乙烯泡沫塑料容器的热回收研究（第二次报告）”日本农业机械学会杂志，第 65 卷，第 6. 110-119 期。 2003）

Michihiro Nakajima, Masaru Kashiwazaki, Takao Kimura, Jiro Uezono, Yoshiaki Iba: "Research on Thermal Recycling of Disposal Expanded Polystyrene Container (Part 2)"J. of JSAM. 65(6). 110-119 (2003)

Michihiro Nakajima、Masaru Kashiwazaki、Takao Kimura、Jiro Uezono、Yoshiaki Iba：“一次性发泡聚苯乙烯容器的热回收研究（第二部分）”J。

柏嵜勝, 中島教博, 木村隆夫, 伊庭慶昭: "廃発泡スチロール容器のサーマルリサイクルに関する研究(第1報)"農業機械学会誌. 65巻6号. 101-109 (2003)

Masaru Kashiwazaki、Norihiro Nakajima、Takao Kimura、Yoshiaki Iba：“废聚苯乙烯泡沫塑料容器的热回收研究（第一次报告）”日本农业机械学会杂志第 65 卷，第 6 期 101-109（2003 年）。

Masaru Kashiwazaki, Michihiro Nakajima, Takao Kimura, Yoshiaki Iba: "Research on Thermal Recycling of Disposal Expanded Polystyrene Container (Part 1)"J. of JSAM. 65(6). 101-109 (2003)

Masaru Kashiwazaki、Michihiro Nakajima、Takao Kimura、Yoshiaki Iba：“一次性发泡聚苯乙烯容器的热回收研究（第 1 部分）”J。