Simulation and Analysis for Coal Water Slurry Gasification Process Technology

Taking some coal from Henan Province as raw material,and using Aspen Plus as flow sheet simulation program,a model for coal water slurry gasification process was established.The effects of the raw material's condition in gasifier,oxygen to coal mass ratio and coal water slurry concentration included,and the operation parameters,gasification temperature and gasification pressure included,on gasification performance were investigated and analyzed.And also the simulation results and the experimental datas were compared.The results showed that the model was right basically and the calculation results accorded with the experimental datas in error allowed.Oxygen to coal mass ratio,coal water slurry concentration and gasification temperature were the main factors which affected gasification reaction results.The gasification pressure had no effect on the reaction results of coal gasification.But the pressurized gasification could help lower the compression energy consumption of the subsequent section.