| 摘要 |
<p>PROBLEM TO BE SOLVED: To separate and remove crystal objects generated in recycling by thermolysis of PET products, in which ethylene glycol is reused as fuel and terephthalic acid is reused as a material of a PET bottle, by collecting ethylene glycol and terephthalic acid by performing thermolysis of a PET composite product which is especially difficult in recycling of plastics.SOLUTION: When decomposition gas passes through a temperature zone where crystals of terephthalic acid are generated, a circulation cooling function of thermolysis equipment is utilized for managing and operating so that the crystals do not adhere to piping.</p> |
