Material selection and anti-corrosion coatings for wastewater stripping heat exchangers

2017-04-25 View Original

Thread Content

Wastewater stripping unit: fluid in the tube side: circulating water; fluid in the shell side: acidic water (containing H2S, H2O, HCl). May I ask if it is acceptable to use 09Cr2AlMoRe for the tube side, Q245R for the shell side, and apply SHY-99 anti-corrosion coating to the tube side? Is corrosion protection needed for the shell side? Please, experts, give me some advice! ! !

Reply #2 2017-05-06

Dissolved hydrogen sulfide promotes the corrosion of carbon steel, while dissolved sulfur dioxide lowers the pH value of circulating cooling water, which is also a factor that contributes to corrosion; it is recommended to use 99 coating on both the interior and exterior surfaces

Reply #3 2017-05-07

Thank you. Then how is the anti-corrosion coating applied outside?

Reply #4 2017-06-05

The shell side requires anti-corrosion protection, as H2S and HCL cause severe corrosion!

Submit a Project

**Looking for Chemical Technology, Equipment & Solutions?** No Registration Required Broader Platform Exposure | Global Chemical Service Provider Connections

Submit Request — Free Consultation

Disclaimer

This is an automated machine translation of the original thread. Some technical terms may have inaccuracies; the original text shall prevail. Click "View Original" at the top right to access the source page, which supports IP-based automatic real-time language translation. Please watch out for contact details and sales inducements to prevent fraud. All content and translations are for reference only, representing solely the poster's personal views. For enquiries, email service@hcbbs.com.

Material selection and anti-corrosion coatings for wastewater stripping heat exchangers

Thread Content

Submit a Project

Disclaimer

Quick Links