Plastic Flat Ring, with its core advantages of low pressure drop, high flux, high mass transfer efficiency, and strong corrosion resistance, is mainly used in the gas-liquid mass transfer and separation process of towers in chemical production, covering multiple key process links. The specific application scenarios and technical values are as follows:

Core application scenarios and process adaptability

1. Petrochemical industry: Distillation and fractionation processes

Application equipment: crude oil fractionation tower, solvent recovery tower, light hydrocarbon separation tower

Core function: Utilizing the high porosity (88% -93%) and uniform gas-liquid distribution ability of plastic flat rings, efficient separation of gasoline, diesel, lubricating oil and other components in crude oil, or recovery and purification of solvents (such as ethanol and acetone) can be achieved.

Technical advantages: Compared with traditional Raschig rings, its low pressure drop characteristics can reduce the airflow resistance inside the tower and reduce the energy consumption of compressors/pumps; At the same time, the anti clogging structure (no dead corners, not easy to scale) can adapt to raw materials containing a small amount of impurities, reducing the frequency of equipment cleaning.

2. Fine chemicals: reactive distillation and purification processes

Application equipment: Organic acid/alkali neutralization tower, spice purification tower, pharmaceutical intermediate separation tower

Core function: In the production of fine chemicals such as ethyl acetate synthesis and separation of fragrance components, the flat structure of plastic flat rings (aspect ratio 1:3) can reduce axial backmixing, accelerate liquid film renewal speed, improve mass transfer efficiency (close to regular packing), and ensure product purity standards (such as pharmaceutical intermediate purity ≥ 99.5%).

Material adaptation: For acidic media such as sulfuric acid and acetic acid, reinforced polypropylene (RPP) or polyvinylidene fluoride (PVDF) materials are selected, which are temperature resistant (60-150 ℃) and corrosion-resistant, avoiding the leaching pollution of metal fillers.

3. Environmental chemical industry: waste gas treatment and desulfurization/denitrification

Application equipment: acid mist absorption tower, industrial waste gas scrubbing tower, desulfurization tower

Core function: In the treatment of waste gas in chemical enterprises (such as salt and acid mist, sulfur dioxide, nitrogen oxide treatment), plastic flat rings serve as gas-liquid contact carriers, expanding the gas-liquid contact area through ring wall ribs/corrugated structures, allowing the waste gas to fully react with absorbents (such as NaOH solution, ammonia water), achieving standard emissions (such as SO ₂ removal rate ≥ 95%).

Scenario adaptation: Small and medium-sized enterprises in chemical industry intensive areas such as Pingxiang, Jiangxi often use PP material flat rings with specifications of Φ 38mm or Φ 50mm to balance cost and processing efficiency, and adapt to the space and load requirements of small and medium-sized washing towers.

4. Inorganic chemical engineering: dissolution and absorption processes

Application equipment: Hydrochloric acid/nitric acid absorption tower, ammonia dissolution tower

Core function: In the production of inorganic acids (such as hydrochloric acid), the HCl gas generated by the reaction of chlorine gas and hydrogen gas is introduced into the absorption tower. The plastic flat ring can guide the gas to come into reverse contact with water, and improve the dissolution efficiency of HCl through its high flux characteristics (processing capacity 10% -20% higher than that of BSH), rapidly preparing concentrated hydrochloric acid; In the dissolution of ammonia, it can avoid gas "short circuit" and ensure stable concentration of ammonia water.