Case Study on Corrosion and Scale Inhibition in Petrochemical Recirculating Cooling Water Systems
Overview:
To address scaling, corrosion, and water quality fluctuations in petrochemical circulating cooling water systems, Prio has developed a comprehensive treatment plan through water quality analysis, chemical optimization, and operational monitoring, effectively reducing the risks of scaling and corrosion in heat exchange equipment and ensuring the stable operation of the circulating water system.
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Case Introduction
After long-term operation, the circulating cooling water system of a petrochemical enterprise has experienced scaling, corrosion, and fluctuations in water quality. As the cycle‑water concentration factor increases, calcium ions, magnesium ions, and other scale‑forming ions become progressively enriched, leading to a decline in heat‑transfer efficiency of the heat exchangers and, in localized areas, to corrosion and deposit formation.
Based on the on-site water quality and the operating conditions of the circulating water system, Prio’s technical team conducted a comprehensive analysis of the makeup water quality, circulating water concentration, pH, hardness, alkalinity, and equipment operating status, and developed a targeted corrosion and scale inhibition treatment plan.
The scheme employs a corrosion and scale inhibitor suitable for petrochemical circulating water systems, which reduces the risk of scale formation on heat-exchanger surfaces by controlling the precipitation of scaling ions and crystal growth. In addition, coupled with appropriate blowdown and water-quality monitoring measures, it ensures stable operation of the circulating water system.
During actual operation, the dosage of chemical agents is dynamically optimized in response to changes in on-site water quality, while the pH, hardness, alkalinity, concentration factor, and corrosion conditions of the circulating water are continuously monitored.
Following continuous operation and optimization, scaling in the circulating water system has been effectively controlled, heat exchange equipment operates stably, and the frequency of equipment cleaning and maintenance has been reduced, thereby providing robust water‑treatment support for the continuous and stable operation of petrochemical production units.
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Company Address No. 3716 Qingdao Road, Huaiyin District, Jinan City, Shandong Province, Unit 1801, China Construction Jinxiu Plaza.
Production base Juye Chemical Industry Park, Heze City, Shandong Province.
Nanjing Branch Company Room B2304, Nanjing University of Technology (Dingjiaqiao Campus), No. 5 Xinmofanma Road, Gulou District, Nanjing City, Jiangsu Province.
Phone : +86-531-88986356
Phone :+86-15562623709
Email : sdprio@sdprio.com