Coal chemical pipelines are in long-term contact with phenol-containing, ammonia-containing, sulfur-containing, high-temperature and high-pressure media, resulting in severe corrosion and scaling, which places high requirements on material and process sta
Severe Corrosion and Scaling Blockage
Phenol, ammonia, and sulfur-containing media are prone to causing local corrosion and erosion corrosion at high temperatures. At the same time, the generated salts are easy to deposit and block the pipelines, leading to a decrease in transportation efficiency.
Safety Risks Under Complex Working Conditions
Under high temperature and high pressure, the media are flammable and explosive. Once leakage or rupture occurs, it is very easy to cause fire and explosion accidents.
Difficulties in Multiphase Flow Medium Transportation
Solid-liquid-gas mixed media are likely to cause pipeline wear. Traditional carbon steel materials have a short service life and high maintenance costs.
