Anti-corrosion research has achieved results

Recently, the phenol-acetone unit heat exchanger of the phenol-acetone unit of the Jilin Petrochemical Dyestuff Plant has achieved effective results, alleviating the corrosion tendency of heat exchanger equipment, reducing the cost of liquid caustic soda purchase and vehicle transportation, and it is expected to create 95.

The phenol acetone plant is one of the 300,000 tons/year ethylene supporting projects of Jilin Petrochemical, which has been completed and put into production and has been running smoothly for more than 20 years.

The research team studied the corrosion mechanism of heat exchanger corrosion caused by pH and heat exchange temperature changes, paying attention to the operating parameters of each tower; further improving the analysis method by increasing the frequency of sampling and analysis; studying the source of impurities based on the collected product analysis data, Organize process optimization, improve the heat exchange capacity of the heat exchanger, and extend the repair and replacement cycle of the heat exchanger.

They also formulated the "Anti-corrosion Plan for the Heat Exchanger of the Distillation Unit of the Phenol Acetone Unit of the Dyestuff Plant", established seven research measures, studied the feasibility of adding alkali to the tower receiving tank, and used the ASPEN software to simulate the relevant towers to optimize the operation of the towers.

It's always shallow on paper, and I absolutely know that I have to do it personally.

Up to now, the amount of alkali added to the tower has been reduced from 0.