Corrosion condition of carbon steel tube bundles in the atmospheric and vacuum gasoline coolers in the petrochemical industry
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Due to corrosion by the H2S-HCl-H2O system, the constant-pressure and reduced-pressure gasoline coolers in the petrochemical industry experience significant corrosion in the carbon steel tube bundles after about 1 year of use; in severe cases, tube bundle leakage occurs or the units become unusable even within less than 1 year. Therefore, corresponding anti-corrosion measures must be taken to address the corrosion of such systems. Options include material upgrading, coating protection, electrochemical protection, etc.
The carbon steel tube bundles in the atmospheric and vacuum gasoline coolers used in the petrochemical industry suffer from H2S-HCl-H2O corrosion, which leads to significant corrosion problems after about one year of use; in severe cases, leakage or failure may occur even within less than a year. Therefore, anti-corrosion measures such as material upgrading, coating protection, and electrochemical protection need to be adopted. .
1. SHY-99 coating 2. 10# and 20# (HIC) hydrogen sulfide-resistant carbon steel 3. 08Cr2AlMo also possesses good mechanical properties and corrosion resistance; in addition, factors such as the quality of circulating water and its flow rate must also be taken into consideration
The shell-side fluid is quite dirty; it is recommended to switch it to the tube side.