Kansetsu International Co.,Ltd.
             
Solvent recovery system

DMAC solvent recovery system

Our DMAC solvent recovery system is to collect soluble solvent (Ex: DMAC, DMF, DMSO) used by acrylic fiber production/ polyurethane fiber production.

Concentrated DMAC is generally cold-condensed, collected, and recycled. However, it is impossible to decrease the density of DMAC (Lower than several thousand ppm) within several ppm by using cold-condenser, it is abandoned in the air up to now.

By overflowing the circulate liquid from low-density to high-density tank, Horizontal Multi-Stage Scrubber system enables low-density gas disposal (reduction for environmental pollution) and high-density solvent recycle (as valuable resources) by small amount of water suppliment.


   

(Ex) DMAC solvent recovery
   Disposal gas volume: 1,495Nm3/Hr
   Gas temperature: 25℃

   

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Inlet density Outlet density Removal efficiency Recyclable amount Solvent cost Solvent saving
Substance ppm ppm % Ton/year JPY/kg JPY/year
DMAC 628.0 0.8 99.8 31.5 810 25,515,000


#1 Absorption tank #2 Absorption tank #3 Absorption tank #4 Absorption tank
DMAC density (%) 18.0 11.5 7.0 3.5