Absorption
Divided-Wall Column
Dual Reboilers
Energy Saving
Acrylic Acid Purification
A next-generation flowsheet combining absorption with pump-around cooling and a divided-wall refining column with side-draw. The design delivers >50% energy savings while consistently achieving >99.9 wt.% polymer-grade acrylic acid.
>50%
Energy savings
Energy savings
>99.9%
Product purity
Product purity
<0.04%
AA in off-gas
AA in off-gas
Process Highlights
- Absorption section with pump-around cooling minimizes inhibitor load and improves heat removal.
- Divided-wall refining column with side-draw achieves tighter separations with fewer units.
- Overhead non-condensables <0.04 wt.% acrylic acid — reduces product loss and improves yield.
- Consistent >99.9 wt.% purity for polymer and coatings applications.