Method for recycling pyrolysis of waste plastics

摘要

To provide a method whereby, in coke oven operation of using a coke raw material with a high blending ratio of non-pulverized caking coal, a large amount of waste plastic is charged into a coke oven for thermal decomposition recycling.SOLUTION: The present invention provides a method where, after a coke raw material C with a blending ratio of non-pulverized caking coal of 30 mass% or more is charged into a coke oven chamber 11 of a coke oven 10, waste plastic P is charged into an oven top space 12 above the coke raw material C for thermal decomposition recycling, characterized in that, the waste plastic P, which has been made into granules, by prior molding, with a ratio of ones having a mesh size under 10 mm of 20 mass% or less and a specific surface of 500 mm/g or less, is charged into the coke raw material C, and then charged into the oven top space 12 after a lapse of at least one hour.SELECTED DRAWING: Figure 1