Study on Synergistic Effect in Co-Gasification of Oil Sludge and Sawdust
This study focuses on the co-gasification process of oil sludge and sawdust;using gasification agent as the gasification agent,the gasification characteristics of sawdust,oil sludge(OS)and their blends were investigated by thermogravimetric analysis system,and the synergistic effect in co-gasification of blends with different mixing ratios was also studied.The helical gasification reaction unit was used to conduct gasification experiments on blends with different mixing ratios,and the experimentally and theoretically calculated values of three-phase product yields were compared and analyzed.The results show that the gasification performance of sawdust is better than that of OS.The increase of sawdust content in the blends can significantly improve the gasification performance and gasification reactivity of OS,and the increase of oil sludge content can enhance the gasification reaction of sawdust.The experimental value curve of mass loss rate for the blends gasification reaction is lower than the theoretical calculation curve in the volatilization and gasification stage.The gas yield of the gasification reaction increases with the increase of sawdust content in the blends.The gas yield of the blends of oil sludge and sawdust with a 6/4 mass ratio can reach 48.48％,and the experimental value is 20.05％higher than the theoretical calculation value.This research has proved that there is a significant synergistic effect in the sawdust and OS co-gasification reaction.
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