Experimental Simulation of Pyrolysis Products Recycling via Detonation

Earlier the efficiency of a stand in form of the open-end Π-shape tube for deflagration-to-detonation transition (DDT) of propane—air mixtures at normal pressure was shown. In this work, the study of the DDT is extended to the mixtures modeling real gaseous pyrolysis products of polyethylene and rubber-containing industrial and domestic waste. Modeling mixtures with air contain Н₂, СН₄, С₂Н₆, С₂Н₄, С₃Н₈ and С₃Н₆ in stoichiometric or lean concentration based on the experimental data presented in the literature. Conditions when the DDT can be reached (stand design, initial pyrolysis products mixture concentration) are defined. Measurements of the temperature of the mixture passed through the stand in addition to dynamic measurements allow to define the character of the processing: DDT, fast or slow deflagration. It has been shown that propane as a model fuel may be used instead of pyrolysis gases mixtures when studying DDT. The results supposed to be helpful for the waste recycling industrial setups engineering.