生活垃圾衍生燃料复合热化学转化制合成气模拟OACHSSCD

As the global energy transition accelerates,syngas production from municipal solid waste has attracted significant attention.This approach combines solid waste treatment and clean energy production.However,conventional waste incineration often causes secondary pollution and high carbon emissions.To overcome these limitations,this study investigates an integrated thermochemical process for the deep treatment of municipal solid waste.An Aspen Plus-based simulation model is developed for syngas production through gasification of refuse-derived fuel(RDF).The effects of RDF calorific value,the type of agent for fluidized-bed gasification,and gasification temperature(1 300-1 500 ℃)on syngas yield and energy efficiency are systematically examined.The results indicate that increasing the calorific value of RDF from 12.56 to 20.92 MJ/kg significantly improves system performance.The content of effective gases(H2 and CO),cold gas efficiency,and overall system efficiency increase to 72.76％-85.97％,68.60％-70.90％,and 45.73％-51.88％,respectively.Under a CO2/O2 fluidizing gasifying system,the effective gas yield reaches 775.7-783.9 Nm3/h.Compared to the H2O/O2 system,the effective gas yield increases by approximately 2.8％,while oxygen consumption decreases by about 2.9％.The effective gas volume fraction ranges from 81.56％to 87.10％.The cold gas efficiency is 69.45％-71.40％,and the overall system efficiency is between 45.94％and 48.80％,demonstrating higher gasification efficiency.When the temperature of fluidized-bed gasification increases by 100 ℃,oxygen consumption significantly increases,and the volume fraction of effective gas decreases.The cold gas efficiency drops by approximately 2.1％,and the overall system efficiency decreases by about 1.6％.This research provides theoretical guidance for the safe disposal and resource recovery of municipal solid waste.