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The 50 g co-carbonization test of blend coals with two high-volatile bituminous coals and two low-volatile bituminous coals and added waste plastics(PE, PP, PS and PET) under 1.33 kPa was investigated at a plastic addition ratio of 2%~10%. Co-carbonization was performed from 200 °C, at a heating ratio of 3 K/min, to 900 °C. In the study of coke strength, coke reactivity index and porosity, we appended the anthracite of different addition ratios of 0%, 5%, and 10%. The result shows that 1) In the case of anthracite addition ratio of 5%, the effect of PE and PP on blend coals is similar and the coke strength reaches the maximum at the plastic addition ratio of 6% and then decreases; 2) PS and PET deteriorate the coke strength, observably at the addition ratio of 5%; and 3) both the coke reactivity and porosity increase with the increase of addition ratio of waste plastics. This study shows that mirco strength of coke with 5% anthracite addition can effectively distinguish the effect of different addition ratio and types of waste plastics on coke property

Estimate research on co-carbonization of blend coal with waste plastics