Hydrogen production from co-gasification of asphaltene and plastic

摘要

At present, due to the environmental considerations and world energy crisis, there is a growing trend towards using gasification instead of combustion as a thermochemical route for power generation. The purpose of this work was to provide a computer-based model to predict the potential of gasification process for syngas production. The influence of the most important operational conditions namely asphaltene/plastic mass ratio (A/P), steam/fuel ratio (S/F), gasification temperature (T-gas), and equivalence ratio (ER) on gas composition and tar concentration was evaluated. With the asphaltene/plastic ratio (A/P) increasing from 0.2 (wt/wt) to 0.6 (wt/wt), the carbon conversion efficiency (CCE) initially increases from 47.88% to 54.61% for S/F = 0.25, from 49.80% to 54.11% for S/F = 0.5, from 51.83% to 58.36% for S/F = 0.75, and from 52.69% to 60.57% for S/F = 1.0, then steadily decreased. The gas yield also increased from 45.12 (%) to 92.08 (%) with increasing ER from 0.1 to 0.8, while the tar yield decreased from 12.24 (%) to 00.14 (%).