Research and development of acetylene recovery and VOC removal from calcium carbide slag slurry
By studying and analyzing the mass transfer mechanism and process of acetylene,VOC,and odorous gases in wet acetylene carbide slag,corresponding analysis methods were established,and the influencing factors of acetylene recovery rate were analyzed.Measures to enhance mass transfer were proposed,and special internal components,structures,and auxillary equipment for the desorption tower were designed.A fully enclosed and fully recovery process flow was designed from the overflow pipe of the acetylene generator,and the optimal process control parameters were formulated.The acetylene recovery rate was stable,greater than 96％,and the low-temperature condensate containing acetylene was recovered in a closed manner.At the same time,the VOC and odorous gases in the slurry were removed,and the environmental improvement effect was significant.In the subsequent processing steps,there was no longer any foul odor,and the cost saving effect was significant.
acetyleneVOCodorous gasescalcium carbide slag slurrydesorption towerrate of recovery
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