Sulfur Dioxide Removal in Coal Slurry Reactor

Abstract

The objective of this work was to study the feasibility of using coalslurry for the removal of SO2 from simulated flue gas stream (air,SO2). The effect of gas rate, temperature, and initial SO2concentration on the overall removal efficiency was investigated atwet and dry bed conditions. The results indicated that the optimumgas rate was 60 l /min. The SO2 removal efficiency was highlytemperature sensitive, and increases with increasing the bedtemperature especially at wet bed conditions and decreases withincreasing SO2 initial concentration. A mathematical model for thedesulfurization process was proposed based on the material balancefor gaseous and solid phase streams. The model was found to give avery good description of the experimental data with 95% confidencelevel.

Keywords

• removal
• coal slurry reactor
• fgd
• modeling