Sapporo Plastic Recycle Corporation has been operating a commercial waste plastic liquefaction plant, over two years safely since April 2000,when the containers and packaging recycling law on plastic packages was introduced in Japan. During this operation, we encountered initial troubles such as corrosion, blockade caused by HCl gas generated from PVC, and organic acid generated from PET, but cleared them one by one, and achieved continuous operation favorably. We solved this problem caused by organic acid generated from PET by adding alkali into the process. High conversion rate of oil from waste plastic was achieved by special designed degradation contrivance that is rotary kiln type with triple vessel structure. We would like to promote feedstock recycling by the product oil of this process to oil refinery first of all.
