Response surface modelling of biomass-rich municipal solid waste pyrolysis: towards optimum hydrogen production

Abstract In this study, two-step pyrolysis of biomass-rich municipal solid waste was studied on nickel supported ZSM-5 catalyst. the first stage reactor, constant temperature ( T = 550 °C) applied, and in second stage, reactions took place at 500, 700 850 °C. Effects operating parameters (temperature 700, °C, steam rate 1, 5 g/h) catalyst load (0.5, 1.0, 2.0) were yields compositions, particularly hydrogen contents. order to determine significance parameters, response surface methodology used. Considering experimental data, values hydrogen/carbon monoxide molar ratio, lower heating value simulation, it found that favourable °C 1 g/h (gas yield: 27.1%, 9.96 mmol g −1 waste, ratio: 1.8). From data methodology, also concluded has a more critical effect gas composition than rate. However, some cases, synergistic two factors can be significant. Graphical abstract