Supercritical Water Process for the Chemical Recycling of Waste Plastics

被引：0
作者：
Goto, Motonobu [1 ]
机构：
[1] Kumamoto Univ, Bioelect Res Ctr, Kumamoto 8608555, Japan
来源：
2ND INTERNATIONAL SYMPOSIUM ON AQUA SCIENCE, WATER RESOURCE AND LOW CARBON ENERGY | 2010年 / 1251卷
关键词：
Plastics; Depolymerization; Decomposition; Supercritical fluid; Recycling; POLYETHYLENE TEREPHTHALATE; DECOMPOSITION; METHANOL; DEPOLYMERIZATION; DEGRADATION; RESIN;
D O I：
10.1063/1.3456306
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The development of chemical recycling of waste plastics by decomposition reactions in sub- and supercritical water is reviewed. Decomposition reactions proceed rapidly and selectively using supercritical fluids compared to conventional processes. Condensation polymerization plastics such as PET, nylon, and polyurethane, are relatively easily depolymerized to their monomers in supercritical water. The monomer components are recovered in high yield. Addition polymerization plastics such as phenol resin, epoxy resin, and polyethylene, are also decomposed to monomer components with or without catalysts. Recycling process of fiber reinforced plastics has been studied. Pilot scale or commercial scale plants have been developed and are operating with sub- and supercritical fluids.
引用
收藏
页码：169 / 172
页数：4
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