As coal-to-methanol plants scale up to the 600,000 tons/year level, the main distillation column faces unprecedented challenges. Diameters exceeding φ4000mm introduce severe fluid distribution issues. FXSINO (Pingxiang Fangxing) was commissioned to optimize the distillation system for a major energy base in Ordos, Inner Mongolia.

• Distributor Bottleneck: Difficulty achieving uniform liquid distribution at φ4300mm.

• Inter-stage Interference: Turbulence at packing junctions disrupting mass transfer.

• Stripping Section Load: High-boiling components accumulating at the base.

1. Rectification Section: Segmented Composite Packing

To maximize efficiency, FXSINO utilized 14 meters of 420X Metal Wire Gauze Packing (304 SS). With a specific surface area of 420 m²/m³, it offers superior wettability. To mitigate wall flow, we embedded 0.4~0.5m of TJH25 Sheet Metal Packing between segments.

2. Stripping Section: Hybrid Robust Design

The upper stripping section used 7 meters of Alcohol/Water Specialized Packing plus 0.8m of TJH25. Crucially, we retained 13 layers of TF3 Guided Float Valve Trays at the bottom. This leverages the design (Patent No. ZL 2005 3 0048634.6) to handle high temperatures (~120^°C).

The success of the Inner Mongolia project proves that high-efficiency mass transfer requires a combination of advanced internals and deep process understanding. FXSINO provides turnkey solutions from simulation to installation.

Certified Manufacturer & Patent Holder

FXSINO (Pingxiang Fangxing Petrochemical Packing Co., Ltd.)
Tel: +86 18507999558
Website: https://www.fxsino.com